Force and Motion

Front

What is the force that opposes the motion of any object?

Back

Friction is the force that opposes the motion of any object.

Front

What does the law of inertia state?

Back

An object's motion will not change unless an unbalanced force acts on it.

Front

What happens to people in a car when it stops quickly?

Back

People in a car move forward in their seats when the car stops quickly due to inertia.

Front

What type of energy does a child at the top of a slide have?

Back

The child at the top of the slide has potential energy.

Front

Why is it more difficult to start a 50 kg box sliding than a 5 kg box?

Back

The 50 kg box has greater mass, which contributes to its inertia.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion.

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its motion.

Front

What is a balanced force?

Back

A balanced force occurs when two forces acting on an object are equal in size and opposite in direction, resulting in no change in motion.