Forces And Motion

Front

What is force?

Back

A push or pull on an object that can cause it to move, stop, or change direction.

Front

What is motion?

Back

The change in position of an object over time.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion; more mass means more inertia.

Front

What is friction?

Back

A force that opposes the motion of an object, caused by the contact between surfaces.

Front

What is gravity?

Back

A force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

What is a balanced force?

Back

Forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

What is an unbalanced force?

Back

Forces that are not equal, causing a change in motion of an object.

Front

How does increasing force affect speed?

Back

Increasing the force applied to an object will increase its speed.

Front

What happens to an object at rest when a force is applied?

Back

It will start to move in the direction of the applied force.

Front

What is the role of chains on tires in snow?

Back

Chains increase friction between the tires and the snow, improving traction.