Speed

What is the equation involving speed, distance and time?

• Speed = Distance / Time

• Speed = Distance x Time

• Speed = Time / Distance

• Speed = Time x Distance

Which of these isn't a unit for speed?

• m/s

• km/h

• mph

• km

A runner runs 100m in 10s, what is their speed?

• 10 m/s

• 10

• 1000 m/s

• 0.1 m/s

Using speed and time, how do you calculate distance?

• Distance = speed x time

• Distance = speed / time

• Distance = time / speed

• Distance = speed + time

Using speed and distance, how do you calculate time taken?

• Time = distance / speed

• Time = speed / distance

• Time = speed x distance

• Time = distance x speed

Calculate the distance travelled by a car in 10 s, travelling at a speed of 20 m/s.

• 200 m

• 0.5 m

• 2000 m

• 2 m

Calculate the time it takes a runner to cover 200 m at a speed of 8 m/s.

• 25 s

• 1600 s

• 0.04 s

• 208 s

True or false. The steeper the line on a distance/time graph, the quicker the object is moving.

• True

• False

How do we show that an object has stopped on a distance/time graph?

• The line is steep

• The line is curved

• The line is horizontal

• The line is vertical

How do we know whether an object is moving closer to home (starting point)?

• The line is steep

• The line is going up

• The line is going down

• The line is flat