Describe the relationships between kinetic energy, mass, and speed - Middle School Physical Science
Card 1 of 170
You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. What is the kinetic energy of the ball?
You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. What is the kinetic energy of the ball?
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The answer is 945 Joules. 1/2 of 2.1 x 302 = 945.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The answer is 945 Joules. 1/2 of 2.1 x 302 = 945.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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If two cars of the same mass get in a head on collision, which car will likely damage the other more? (ignore vehicle design and assume transferring more kinetic energy results in more damage)
If two cars of the same mass get in a head on collision, which car will likely damage the other more? (ignore vehicle design and assume transferring more kinetic energy results in more damage)
Tap to reveal answer
The answer is "the car going fastest"
The answer is "the car going fastest"
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What is the kinetic energy of a 4 kilogram book, falling at 5 meters per second?
What is the kinetic energy of a 4 kilogram book, falling at 5 meters per second?
Tap to reveal answer
The answer is 50 Joules. The equation for Kinetic Energy is: KE = 1/2 mv2 and 1/2 of 4 x 52 = 50.
Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The answer is 50 Joules. The equation for Kinetic Energy is: KE = 1/2 mv2 and 1/2 of 4 x 52 = 50.
Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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A monster truck is traveling at 100 meters per second and runs straight into a bike (with no one on it) The bike is traveling towards the truck at 5 meters per second. As expected, the bike goes flying because it has less kinetic energy than the monster truck. How fast would the bike have to be going to make the monster truck go flying instead?
A monster truck is traveling at 100 meters per second and runs straight into a bike (with no one on it) The bike is traveling towards the truck at 5 meters per second. As expected, the bike goes flying because it has less kinetic energy than the monster truck. How fast would the bike have to be going to make the monster truck go flying instead?
Tap to reveal answer
The answer is "there is not enough information because we don't know the mass of either object."
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The answer is "there is not enough information because we don't know the mass of either object."
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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Suppose you have a grocery cart. You are pushing it down the aisle and you continue to push with the same speed as you put more items in the cart. As you add more groceries to the cart, how will the Kinetic energy of the cart change?
Suppose you have a grocery cart. You are pushing it down the aisle and you continue to push with the same speed as you put more items in the cart. As you add more groceries to the cart, how will the Kinetic energy of the cart change?
Tap to reveal answer
The kinetic energy of the cart will increase because the mass is increasing while the speed remains constant.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The kinetic energy of the cart will increase because the mass is increasing while the speed remains constant.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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True or false: If an object has more speed than something else, it definitely has more kinetic energy.
True or false: If an object has more speed than something else, it definitely has more kinetic energy.
Tap to reveal answer
The answer is false. An object with less speed and more mass could potentially have the same Kinetic energy.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The answer is false. An object with less speed and more mass could potentially have the same Kinetic energy.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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If an object has 250 Joules of Kinetic energy and is traveling at a velocity of 5 meters per second, what is the objects mass?
If an object has 250 Joules of Kinetic energy and is traveling at a velocity of 5 meters per second, what is the objects mass?
Tap to reveal answer
The object has a mass of 20kg. Rearranging the formula for kinetic energy will allow you to work backwards. 250 Joules x 2 = 500 Joules. 500 Joules divided by the velocity squared (25) = 20 kg.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The object has a mass of 20kg. Rearranging the formula for kinetic energy will allow you to work backwards. 250 Joules x 2 = 500 Joules. 500 Joules divided by the velocity squared (25) = 20 kg.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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If a duck is flying at 3 meters per second, and has a mass of 2kg. What is the kinetic energy of the duck?
If a duck is flying at 3 meters per second, and has a mass of 2kg. What is the kinetic energy of the duck?
Tap to reveal answer
The duck has a kinetic energy of 6 Joules.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The duck has a kinetic energy of 6 Joules.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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The equation for Kinetic Energy is: KE = 1/2 mv2 . Based on this equation, what would have the greatest impact on the overall kinetic energy of a moving object?
The equation for Kinetic Energy is: KE = 1/2 mv2 . Based on this equation, what would have the greatest impact on the overall kinetic energy of a moving object?
Tap to reveal answer
The answer is increasing the velocity, because the velocity variable is squared and therefore an increase in velocity would have a greater impact on the overall kinetic energy.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The answer is increasing the velocity, because the velocity variable is squared and therefore an increase in velocity would have a greater impact on the overall kinetic energy.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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The equation for Kinetic Energy is: KE = 1/2 mv2. What effect would decreasing the mass have on the velocity assuming that the kinetic energy stays the same?
The equation for Kinetic Energy is: KE = 1/2 mv2. What effect would decreasing the mass have on the velocity assuming that the kinetic energy stays the same?
Tap to reveal answer
The velocity would decrease because mass and velocity are inversely related.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The velocity would decrease because mass and velocity are inversely related.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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What is the kinetic energy of a 4 kilogram book, falling at 5 meters per second?
What is the kinetic energy of a 4 kilogram book, falling at 5 meters per second?
Tap to reveal answer
The answer is 50 Joules. The equation for Kinetic Energy is: KE = 1/2 mv2 and 1/2 of 4 x 52 = 50.
Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The answer is 50 Joules. The equation for Kinetic Energy is: KE = 1/2 mv2 and 1/2 of 4 x 52 = 50.
Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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The equation for Kinetic Energy is: KE = 1/2 mv2. What effect would decreasing the mass have on the velocity assuming that the kinetic energy stays the same?
The equation for Kinetic Energy is: KE = 1/2 mv2. What effect would decreasing the mass have on the velocity assuming that the kinetic energy stays the same?
Tap to reveal answer
The velocity would decrease because mass and velocity are inversely related.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The velocity would decrease because mass and velocity are inversely related.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. What is the kinetic energy of the ball?
You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. What is the kinetic energy of the ball?
Tap to reveal answer
The answer is 945 Joules. 1/2 of 2.1 x 302 = 945.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The answer is 945 Joules. 1/2 of 2.1 x 302 = 945.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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If two cars of the same mass get in a head on collision, which car will likely damage the other more? (ignore vehicle design and assume transferring more kinetic energy results in more damage)
If two cars of the same mass get in a head on collision, which car will likely damage the other more? (ignore vehicle design and assume transferring more kinetic energy results in more damage)
Tap to reveal answer
The answer is "the car going fastest"
The answer is "the car going fastest"
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A monster truck is traveling at 100 meters per second and runs straight into a bike (with no one on it) The bike is traveling towards the truck at 5 meters per second. As expected, the bike goes flying because it has less kinetic energy than the monster truck. How fast would the bike have to be going to make the monster truck go flying instead?
A monster truck is traveling at 100 meters per second and runs straight into a bike (with no one on it) The bike is traveling towards the truck at 5 meters per second. As expected, the bike goes flying because it has less kinetic energy than the monster truck. How fast would the bike have to be going to make the monster truck go flying instead?
Tap to reveal answer
The answer is "there is not enough information because we don't know the mass of either object."
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The answer is "there is not enough information because we don't know the mass of either object."
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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Suppose you have a grocery cart. You are pushing it down the aisle and you continue to push with the same speed as you put more items in the cart. As you add more groceries to the cart, how will the Kinetic energy of the cart change?
Suppose you have a grocery cart. You are pushing it down the aisle and you continue to push with the same speed as you put more items in the cart. As you add more groceries to the cart, how will the Kinetic energy of the cart change?
Tap to reveal answer
The kinetic energy of the cart will increase because the mass is increasing while the speed remains constant.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The kinetic energy of the cart will increase because the mass is increasing while the speed remains constant.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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True or false: If an object has more speed than something else, it definitely has more kinetic energy.
True or false: If an object has more speed than something else, it definitely has more kinetic energy.
Tap to reveal answer
The answer is false. An object with less speed and more mass could potentially have the same Kinetic energy.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The answer is false. An object with less speed and more mass could potentially have the same Kinetic energy.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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If an object has 250 Joules of Kinetic energy and is traveling at a velocity of 5 meters per second, what is the objects mass?
If an object has 250 Joules of Kinetic energy and is traveling at a velocity of 5 meters per second, what is the objects mass?
Tap to reveal answer
The object has a mass of 20kg. Rearranging the formula for kinetic energy will allow you to work backwards. 250 Joules x 2 = 500 Joules. 500 Joules divided by the velocity squared (25) = 20 kg.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The object has a mass of 20kg. Rearranging the formula for kinetic energy will allow you to work backwards. 250 Joules x 2 = 500 Joules. 500 Joules divided by the velocity squared (25) = 20 kg.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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If a duck is flying at 3 meters per second, and has a mass of 2kg. What is the kinetic energy of the duck?
If a duck is flying at 3 meters per second, and has a mass of 2kg. What is the kinetic energy of the duck?
Tap to reveal answer
The duck has a kinetic energy of 6 Joules.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The duck has a kinetic energy of 6 Joules.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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The equation for Kinetic Energy is: KE = 1/2 mv2 . Based on this equation, what would have the greatest impact on the overall kinetic energy of a moving object?
The equation for Kinetic Energy is: KE = 1/2 mv2 . Based on this equation, what would have the greatest impact on the overall kinetic energy of a moving object?
Tap to reveal answer
The answer is increasing the velocity, because the velocity variable is squared and therefore an increase in velocity would have a greater impact on the overall kinetic energy.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
The answer is increasing the velocity, because the velocity variable is squared and therefore an increase in velocity would have a greater impact on the overall kinetic energy.
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related. Objects with greater mass can have more kinetic energy even if they are moving more slowly, and objects moving at much greater speeds can have more kinetic energy even if they have less mass. We must consider both the speed and mass of objects when considering the outcomes of collisions.
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