Force & Motion: Coach Ch. 1

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 mass?

Back

The amount of matter in an object, usually measured in kilograms.

Front

What is gravity?

Back

A force that pulls objects toward each other, such as the force that pulls objects toward the Earth.

Front

What is friction?

Back

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

Front

What is speed?

Back

The distance an object travels in a certain amount of time, usually measured in kilometers per hour.

Front

How does mass affect force?

Back

More mass requires more force to move the object.

Front

What happens when you apply a greater force to an object?

Back

The object will accelerate and move faster.

Front

What is the relationship between force and motion?

Back

Force causes changes in motion; without force, an object will remain at rest or in uniform motion.

Front

What is air resistance?

Back

A type of friction that acts against the motion of an object moving through air.