Force and Motion

Front

What is a force?

Back

A force describes the push or pull of an object.

Front

What can make a car stop moving?

Back

A force that pushes the opposite of the direction that the car is moving.

Front

What do two or more objects create when they rub against each other?

Back

Friction.

Front

What does gravity do to objects?

Back

Gravity is a natural force that pulls all objects towards the center of the earth.

Front

At what rate do all objects fall?

Back

All objects fall at the same rate of speed.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it rubs against another object.

Front

What is the difference between speed and velocity?

Back

Speed is how fast something is moving, while velocity includes the direction of the movement.

Front

What is inertia?

Back

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

Front

What happens when two forces act in the same direction?

Back

They combine to create a greater force.

Front

What happens when two forces act in opposite directions?

Back

They can cancel each other out or create a net force.