AQA Newton's Laws of Motion (Cognito)

What does Newton's first law state about the motion of an object?

• A resultant force is required to change the motion.

• An object will remain stationary if no resultant force acts on it.

• An object in motion will stay in motion unless acted upon by a resultant force.

• All of the above.

What happens to a stationary object if the resultant force is zero?

• It will start moving.

• It will remain stationary.

• It will accelerate.

• It will change direction.

According to Newton's second law, what happens if a non-zero resultant force acts on an object?

• The object will remain at rest.

• The object will accelerate.

• The object will change direction.

• The object will stop moving.

What is inertia?

• The tendency for the motion of an object to remain unchanged.

• The force required to change an object's motion.

• The mass of an object.

• The acceleration of an object.

What does the equation F = ma represent?

• Force is equal to mass times acceleration.

• Mass is equal to force divided by acceleration.

• Acceleration is equal to force divided by mass.

• All of the above.

What is the effect of a larger resultant force on acceleration?

• It decreases acceleration.

• It has no effect on acceleration.

• It increases acceleration.

• It causes the object to stop.

How does circular motion relate to acceleration?

• The speed remains constant while the direction changes.

• The speed changes while the direction remains constant.

• Both speed and direction change.

• Neither speed nor direction change.

What happens when two objects interact according to Newton's third law?

• The forces they exert on each other are equal and opposite.

• One object will always move.

• The larger object exerts more force.

• The smaller object exerts more force.

What is the normal contact force?

• The force exerted by an object in contact.

• The force of gravity on an object.

• The force required to move an object.

• The force that opposes motion.

What determines which object will move when two objects interact?

• The mass of the objects.

• The force applied.

• The direction of the forces.

• All of the above.