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Physics Module 3 > Speed > Flashcards

Flashcards in Speed Deck (5):
1

equation for average speed

average speed = distance / time

2

Understand why one type of speed camera takes two
photographs:

• a certain time apart
• when the vehicle moves over marked lines a
known distance apart on the road.

3

Understand how average speed cameras work.

- a camera takes a photo of the car number plate
- a second camera takes a photo of the same car later
- the time between the photos and the distance between the cameras is used to work out the average speed

4

Interpret the relationship between speed, distance
and time

• increasing the speed, which increases the
distance travelled in the same time
• increasing the speed reduces the time needed to
cover the same distance.

5

Describe and interpret the gradient (steepness) of a
distance-time graph as speed.

The steeper the slope, the faster the speed.