Calculating Speed

Front

What is speed?

Back

Speed is how much distance is covered over a period of time.

Front

How do you calculate speed?

Back

Speed = Distance / Time.

Front

If a runner completes 100 meters in 10 seconds, what is her speed?

Back

10 m/s.

Front

What is the unit of speed?

Back

Common units of speed include meters per second (m/s) and kilometers per hour (km/h).

Front

What is the unit of distance?

Back

Kilometer (km) is a unit of distance.

Front

A girl rides 500 meters in 50 seconds. What is her speed?

Back

10 m/s.

Front

A ball rolls 144 cm in 12 seconds. What is its speed in meters per second?

Back

0.12 m/s.

Front

What does it mean if an object has a speed of 0?

Back

It means the object is not moving.

Front

What is average speed?

Back

Average speed is the total distance traveled divided by the total time taken.

Front

If a car travels 150 km in 3 hours, what is its average speed?

Back

50 km/h.