Describing Motion

Front

What is the formula for calculating speed?

Back

Speed = distance / time

Front

What is acceleration?

Back

Any change in SPEED or DIRECTION.

Front

What do we call a place or object used for comparison to determine if another object is in motion?

Back

Reference point

Front

If a soccer ball travels 40 meters in 5 seconds, what is its speed?

Back

8 m/s

Front

When a car goes around a corner at a constant speed, why do we say it accelerates?

Back

Because it's changing direction.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

What is a scalar quantity?

Back

A quantity that has only magnitude, such as speed.

Front

What is a vector quantity?

Back

A quantity that has both magnitude and direction, such as velocity.

Front

What is the unit of speed in the metric system?

Back

Meters per second (m/s).

Front

What does it mean if an object is in motion?

Back

It means its position is changing relative to a reference point.