Force 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 friction?

Back

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

Front

How does mass affect speed?

Back

Increasing the mass of an object can increase its speed if the force applied is also increased.

Front

What is the relationship between force and motion?

Back

A force applied to an object can cause it to move or change its motion.

Front

What happens when the force of friction is greater than the applied force?

Back

The object will not move.

Front

What is an example of increasing friction?

Back

Spreading sand on an icy road to help cars grip the surface.

Front

What is the effect of decreasing friction on movement?

Back

Decreasing friction allows an object to move more easily and increases its speed.

Front

What is the formula for calculating force?

Back

Force = Mass x Acceleration (F = m x a).

Front

What is acceleration?

Back

The rate at which an object changes its velocity.