6.1 Calculating Speed/Velocity

Front

What is speed?

Back

Speed is the distance traveled per unit of time, typically expressed in units such as km/hr or m/s.

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction, expressed in units such as km/hr north.

Front

How do you calculate speed?

Back

Speed = Distance / Time.

Front

If a girl pedals her bike at 0.10 km/min, how far will she travel in 2 hours?

Back

12 km.

Front

What is the formula to calculate time when distance and speed are known?

Back

Time = Distance / Speed.

Front

How long will it take an ant to carry food at 1 cm/s over a distance of 50 m?

Back

5,000 seconds.

Front

A car travels at 100 km/hr. How long to cover 750 km?

Back

7.5 hours.

Front

What is the speed of a car that travels 200 km in 3.6 hours?

Back

Speed = 55 km/hr.

Front

What is the difference between speed and velocity?

Back

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

Front

How do you convert km/hr to m/s?

Back

Multiply by 5/18.