Explain Waves Cause Motion - 4th Grade Science
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What is amplitude in a wave model, stated as a simple definition?
What is amplitude in a wave model, stated as a simple definition?
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The height of the wave from the rest position. Measures how far particles move from their starting position.
The height of the wave from the rest position. Measures how far particles move from their starting position.
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What is frequency in a wave model, stated as a simple definition?
What is frequency in a wave model, stated as a simple definition?
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How many waves pass a point in a given time. Counts wave cycles per second or minute.
How many waves pass a point in a given time. Counts wave cycles per second or minute.
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Which wave feature most directly indicates more energy in many 4th grade models: larger amplitude or longer wavelength?
Which wave feature most directly indicates more energy in many 4th grade models: larger amplitude or longer wavelength?
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Larger amplitude. Higher waves carry more energy to move objects.
Larger amplitude. Higher waves carry more energy to move objects.
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What is a transverse wave in terms of particle motion compared with wave travel?
What is a transverse wave in terms of particle motion compared with wave travel?
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Particles move perpendicular to the direction the wave travels. Like waves on a rope moving up-down while traveling sideways.
Particles move perpendicular to the direction the wave travels. Like waves on a rope moving up-down while traveling sideways.
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What is a longitudinal wave in terms of particle motion compared with wave travel?
What is a longitudinal wave in terms of particle motion compared with wave travel?
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Particles move parallel to the direction the wave travels. Like sound waves with back-forth motion matching wave direction.
Particles move parallel to the direction the wave travels. Like sound waves with back-forth motion matching wave direction.
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What are compressions in a longitudinal wave model?
What are compressions in a longitudinal wave model?
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Regions where particles are close together. Particles bunch up in high-pressure zones.
Regions where particles are close together. Particles bunch up in high-pressure zones.
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What are rarefactions in a longitudinal wave model?
What are rarefactions in a longitudinal wave model?
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Regions where particles are spread farther apart. Particles spread out in low-pressure zones.
Regions where particles are spread farther apart. Particles spread out in low-pressure zones.
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Which option best describes how a wave can move an object: by transferring energy through pushes and pulls or by carrying the object along?
Which option best describes how a wave can move an object: by transferring energy through pushes and pulls or by carrying the object along?
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By transferring energy through pushes and pulls. Wave energy creates forces that move objects.
By transferring energy through pushes and pulls. Wave energy creates forces that move objects.
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Identify the best wave-model explanation for why wind can create larger ocean waves.
Identify the best wave-model explanation for why wind can create larger ocean waves.
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Wind transfers energy to the water, increasing wave amplitude. Wind energy makes water particles vibrate more.
Wind transfers energy to the water, increasing wave amplitude. Wind energy makes water particles vibrate more.
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Which statement correctly uses a wave model to explain motion in a stadium “wave” by people?
Which statement correctly uses a wave model to explain motion in a stadium “wave” by people?
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The pattern moves around; each person moves up and down in place. Shows wave energy moving while matter stays in place.
The pattern moves around; each person moves up and down in place. Shows wave energy moving while matter stays in place.
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What is the wave-model explanation for why a floating cork bobs up and down when a water wave passes?
What is the wave-model explanation for why a floating cork bobs up and down when a water wave passes?
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The water particles vibrate, transferring energy to the cork. Wave energy pushes water up, lifting the cork.
The water particles vibrate, transferring energy to the cork. Wave energy pushes water up, lifting the cork.
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What is the wave-model explanation for why a floating cork does not travel far with a passing water wave?
What is the wave-model explanation for why a floating cork does not travel far with a passing water wave?
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Energy moves forward, but the cork mainly oscillates in place. Water particles don't travel, so neither does the cork.
Energy moves forward, but the cork mainly oscillates in place. Water particles don't travel, so neither does the cork.
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Identify the correct statement about sound waves moving objects such as a drumhead.
Identify the correct statement about sound waves moving objects such as a drumhead.
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Sound vibrations transfer energy that makes the drumhead vibrate. Air particles vibrate, passing energy to the drum surface.
Sound vibrations transfer energy that makes the drumhead vibrate. Air particles vibrate, passing energy to the drum surface.
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What is the correct wave-model statement about a slinky wave: what moves down the slinky?
What is the correct wave-model statement about a slinky wave: what moves down the slinky?
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The wave (energy) moves; the coils mostly vibrate in place. Energy travels through coils that vibrate without traveling.
The wave (energy) moves; the coils mostly vibrate in place. Energy travels through coils that vibrate without traveling.
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Which option best explains why stronger waves can cause more object motion: higher amplitude or lower frequency?
Which option best explains why stronger waves can cause more object motion: higher amplitude or lower frequency?
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Higher amplitude. Bigger waves have more energy to push objects.
Higher amplitude. Bigger waves have more energy to push objects.
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What is the best wave-model definition of a wave in 4th grade science?
What is the best wave-model definition of a wave in 4th grade science?
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A wave is a pattern that carries energy from place to place. Energy moves through a medium without transporting matter.
A wave is a pattern that carries energy from place to place. Energy moves through a medium without transporting matter.
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What does a wave transfer to objects it reaches: matter or energy?
What does a wave transfer to objects it reaches: matter or energy?
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Energy. Waves transport energy, not matter, through vibrations.
Energy. Waves transport energy, not matter, through vibrations.
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What is the name for the back-and-forth movement of matter in a wave model?
What is the name for the back-and-forth movement of matter in a wave model?
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Vibration (oscillation). Particles move back and forth repeatedly in waves.
Vibration (oscillation). Particles move back and forth repeatedly in waves.
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What is the key idea about particle motion in most waves: do particles travel with the wave?
What is the key idea about particle motion in most waves: do particles travel with the wave?
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No; particles vibrate in place while energy moves forward. Energy travels through the wave while matter stays local.
No; particles vibrate in place while energy moves forward. Energy travels through the wave while matter stays local.
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What is wavelength in a wave model, stated as a simple definition?
What is wavelength in a wave model, stated as a simple definition?
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The distance between matching points, such as crest to crest. One complete wave cycle's length.
The distance between matching points, such as crest to crest. One complete wave cycle's length.
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