Newton's First Law - AP Physics 1
Card 1 of 30
What is required to change an object's state of motion?
What is required to change an object's state of motion?
Tap to reveal answer
Net external force. Only unbalanced forces can alter an object's motion state.
Net external force. Only unbalanced forces can alter an object's motion state.
← Didn't Know|Knew It →
How does mass affect an object's inertia?
How does mass affect an object's inertia?
Tap to reveal answer
Greater mass, greater inertia. Mass directly determines how much an object resists motion changes.
Greater mass, greater inertia. Mass directly determines how much an object resists motion changes.
← Didn't Know|Knew It →
In a tug-of-war, if both sides pull equally, what is the net force?
In a tug-of-war, if both sides pull equally, what is the net force?
Tap to reveal answer
Zero. Equal forces in opposite directions cancel completely.
Zero. Equal forces in opposite directions cancel completely.
← Didn't Know|Knew It →
Predict the motion: A car moving at constant speed on a straight road.
Predict the motion: A car moving at constant speed on a straight road.
Tap to reveal answer
Net force is zero. Constant speed indicates balanced forces acting on the vehicle.
Net force is zero. Constant speed indicates balanced forces acting on the vehicle.
← Didn't Know|Knew It →
In the absence of external forces, what remains constant for a moving object?
In the absence of external forces, what remains constant for a moving object?
Tap to reveal answer
Velocity. No external forces means no change in motion state.
Velocity. No external forces means no change in motion state.
← Didn't Know|Knew It →
Predict the motion: A car moving at constant speed on a straight road.
Predict the motion: A car moving at constant speed on a straight road.
Tap to reveal answer
Net force is zero. Constant speed indicates balanced forces acting on the vehicle.
Net force is zero. Constant speed indicates balanced forces acting on the vehicle.
← Didn't Know|Knew It →
What happens to an object if all forces cancel each other?
What happens to an object if all forces cancel each other?
Tap to reveal answer
No change in motion. Equilibrium condition maintains current state of motion.
No change in motion. Equilibrium condition maintains current state of motion.
← Didn't Know|Knew It →
State the condition for an object to be in equilibrium.
State the condition for an object to be in equilibrium.
Tap to reveal answer
Net external force is zero. When all forces balance out, no acceleration occurs.
Net external force is zero. When all forces balance out, no acceleration occurs.
← Didn't Know|Knew It →
Describe motion when net force on an object is zero.
Describe motion when net force on an object is zero.
Tap to reveal answer
Constant velocity or at rest. Newton's First Law describes motion under equilibrium conditions.
Constant velocity or at rest. Newton's First Law describes motion under equilibrium conditions.
← Didn't Know|Knew It →
What is the effect of friction on a moving object?
What is the effect of friction on a moving object?
Tap to reveal answer
It opposes motion, creating a net force. Creates unbalanced force that causes deceleration over time.
It opposes motion, creating a net force. Creates unbalanced force that causes deceleration over time.
← Didn't Know|Knew It →
Identify the force required to maintain constant velocity in the absence of friction.
Identify the force required to maintain constant velocity in the absence of friction.
Tap to reveal answer
No force is required. Objects naturally maintain constant velocity without external forces.
No force is required. Objects naturally maintain constant velocity without external forces.
← Didn't Know|Knew It →
Identify the term for the resistance to change in motion.
Identify the term for the resistance to change in motion.
Tap to reveal answer
Inertia. The property that makes objects resist changes to their motion state.
Inertia. The property that makes objects resist changes to their motion state.
← Didn't Know|Knew It →
Define net force.
Define net force.
Tap to reveal answer
The vector sum of all forces acting on an object. Determines whether an object will accelerate or remain in equilibrium.
The vector sum of all forces acting on an object. Determines whether an object will accelerate or remain in equilibrium.
← Didn't Know|Knew It →
What is the unit of force in the International System of Units (SI)?
What is the unit of force in the International System of Units (SI)?
Tap to reveal answer
Newton (N). Standard unit for measuring force in physics calculations.
Newton (N). Standard unit for measuring force in physics calculations.
← Didn't Know|Knew It →
What type of force must act for a change in motion to occur?
What type of force must act for a change in motion to occur?
Tap to reveal answer
Net external force. Only unbalanced forces can cause acceleration or deceleration.
Net external force. Only unbalanced forces can cause acceleration or deceleration.
← Didn't Know|Knew It →
Which law describes the relationship between force, mass, and acceleration?
Which law describes the relationship between force, mass, and acceleration?
Tap to reveal answer
Newton's Second Law. Expressed mathematically as $F = ma$ for net force calculations.
Newton's Second Law. Expressed mathematically as $F = ma$ for net force calculations.
← Didn't Know|Knew It →
Explain using Newton's First Law: A spacecraft coasting in space.
Explain using Newton's First Law: A spacecraft coasting in space.
Tap to reveal answer
No net force, constant velocity. No external forces act, so spacecraft maintains constant velocity.
No net force, constant velocity. No external forces act, so spacecraft maintains constant velocity.
← Didn't Know|Knew It →
What happens to an object in motion when no net force acts on it?
What happens to an object in motion when no net force acts on it?
Tap to reveal answer
It continues in uniform motion. Objects maintain constant velocity when no net force acts on them.
It continues in uniform motion. Objects maintain constant velocity when no net force acts on them.
← Didn't Know|Knew It →
What is the result of balanced forces acting on an object?
What is the result of balanced forces acting on an object?
Tap to reveal answer
No change in motion. Equal and opposite forces cancel out, maintaining current motion state.
No change in motion. Equal and opposite forces cancel out, maintaining current motion state.
← Didn't Know|Knew It →
What is required to change an object's state of motion?
What is required to change an object's state of motion?
Tap to reveal answer
Net external force. Only unbalanced forces can alter an object's motion state.
Net external force. Only unbalanced forces can alter an object's motion state.
← Didn't Know|Knew It →
In a tug-of-war, if both sides pull equally, what is the net force?
In a tug-of-war, if both sides pull equally, what is the net force?
Tap to reveal answer
Zero. Equal forces in opposite directions cancel completely.
Zero. Equal forces in opposite directions cancel completely.
← Didn't Know|Knew It →
Identify the correct outcome: An unbalanced force causes uniform motion.
Identify the correct outcome: An unbalanced force causes uniform motion.
Tap to reveal answer
Incorrect, causes acceleration. Unbalanced forces create acceleration, not uniform motion.
Incorrect, causes acceleration. Unbalanced forces create acceleration, not uniform motion.
← Didn't Know|Knew It →
What happens to an object at rest when no net force acts on it?
What happens to an object at rest when no net force acts on it?
Tap to reveal answer
It remains at rest. Newton's First Law states objects at rest stay at rest without net force.
It remains at rest. Newton's First Law states objects at rest stay at rest without net force.
← Didn't Know|Knew It →
State the law that explains why a book remains on a table.
State the law that explains why a book remains on a table.
Tap to reveal answer
Newton's First Law. Gravity and normal force balance, creating equilibrium state.
Newton's First Law. Gravity and normal force balance, creating equilibrium state.
← Didn't Know|Knew It →
Define equilibrium in terms of forces.
Define equilibrium in terms of forces.
Tap to reveal answer
Sum of forces equals zero. Mathematical condition for Newton's First Law to apply.
Sum of forces equals zero. Mathematical condition for Newton's First Law to apply.
← Didn't Know|Knew It →
How does mass affect an object's inertia?
How does mass affect an object's inertia?
Tap to reveal answer
Greater mass, greater inertia. Mass directly determines how much an object resists motion changes.
Greater mass, greater inertia. Mass directly determines how much an object resists motion changes.
← Didn't Know|Knew It →
What is the effect of removing a net force from a moving object?
What is the effect of removing a net force from a moving object?
Tap to reveal answer
Continues in uniform motion. Inertia maintains the existing motion when forces are removed.
Continues in uniform motion. Inertia maintains the existing motion when forces are removed.
← Didn't Know|Knew It →
Name the tendency of an object to resist changes in motion.
Name the tendency of an object to resist changes in motion.
Tap to reveal answer
Inertia. Fundamental property that opposes any change in motion.
Inertia. Fundamental property that opposes any change in motion.
← Didn't Know|Knew It →
If an object is moving at constant velocity, what is the net force?
If an object is moving at constant velocity, what is the net force?
Tap to reveal answer
Zero. Constant velocity indicates all forces are perfectly balanced.
Zero. Constant velocity indicates all forces are perfectly balanced.
← Didn't Know|Knew It →
If two people push a box equally from opposite sides, what is the net force?
If two people push a box equally from opposite sides, what is the net force?
Tap to reveal answer
Zero. Equal and opposite forces result in no net force.
Zero. Equal and opposite forces result in no net force.
← Didn't Know|Knew It →