Forces and Motion

Front

What is a force?

Back

A force is a push or pull that can change the motion of an object.

Front

What is motion?

Back

Motion is the change in position of an object over time.

Front

What is gravity?

Back

Gravity is the force that pulls objects toward each other, such as the Earth pulling objects toward its center.

Front

What is mass?

Back

Mass is the amount of matter in an object, which affects how much force is needed to move it.

Front

What is friction?

Back

Friction is a force that opposes motion between two surfaces that are in contact.

Front

What happens when two forces act in the same direction?

Back

When two forces act in the same direction, they combine to create a larger force.

Front

What happens when two forces act in opposite directions?

Back

When two forces act in opposite directions, they can cancel each other out or create a net force.

Front

What is the relationship between force and motion?

Back

A force can cause an object to start moving, stop moving, or change direction.

Front

What is a simple machine?

Back

A simple machine is a device that makes work easier by allowing us to push or pull over increased distances.

Front

What is an example of a push force?

Back

Pushing a door open is an example of a push force.