Force and Motion

Front

What keeps an object at rest?

Back

Inertia keeps an object at rest.

Front

What factor determines the inertia of an object?

Back

Mass determines the inertia of an object.

Front

What force slows down a soccer ball on the ground?

Back

Friction slows down the soccer ball on the ground.

Front

What causes an object to accelerate?

Back

An unbalanced force causes an object to accelerate.

Front

What does inertia explain about people in a car when it stops quickly?

Back

Inertia explains why people move forward in their seats when the car stops quickly.

Front

What is inertia?

Back

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

Front

How does mass relate to inertia?

Back

The greater the mass of an object, the greater its inertia.

Front

What is a balanced force?

Back

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

Front

What is an unbalanced force?

Back

An unbalanced force is when two forces acting on an object are not equal, causing the object to accelerate.

Front

What role does friction play in motion?

Back

Friction opposes motion and can slow down or stop moving objects.