Force & Motion

Front

What is force?

Back

A push or pull on an object.

Front

What is motion?

Back

The change in position of an object over time.

Front

What is speed?

Back

The distance traveled per unit of time.

Front

How do you calculate speed?

Back

Speed = Distance ÷ Time.

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

What happens to an object's speed when mass increases?

Back

The speed usually decreases if the force applied remains the same.

Front

What is gravity?

Back

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

Front

What is average speed?

Back

Total distance traveled divided by total time taken.

Front

If a car travels 120 miles in 2 hours, what is its average speed?

Back

60 mph.

Front

What is the effect of friction on motion?

Back

Friction slows down or stops the motion of objects.