CP1b Distance/Time Graphs

Question 1

Speed (calculation)

Answer 1

speed = distance/time
distance = speed x time
time = distance/speed

Question 2

Common units for speed

Answer 2

m/s (metres per second)
km/h (kilometeres per hour)
mph (miles per hour)

Question 3

Which piece of equipment is more accurate at timing fast moving objects than a stopwatch?

Answer 3

light gates

Question 4

Typical speed of an airliner

Answer 4

250 m/s

Question 5

Typical speed of a high speed train

Answer 5

90 m/s

Question 6

Typical speed of a commuter train

Answer 6

55 m/s

Question 7

Typical speed of a motorway speed limit

Answer 7

31 m/s

Question 8

Typical speed of a ferry

Answer 8

18 m/s

Question 9

Typical speed of speed limit in towns

Answer 9

10.5 m/s

Question 10

Typical speed for cycling

Answer 10

6 m/s

Question 11

Typical speed for walking

Answer 11

1.4 m/s

Question 12

What does a horizontal line mean on a distance/time graph?

Answer 12

The object is stationary

Question 13

What do straight sloping lines on a distance/time graph mean?

Answer 13

The object is travelling at a constant speed

Question 14

The steeper the line on a distance/time graph…

Answer 14

The faster the object is travelling

Question 15

How is speed calculated from a distance/time graph

Answer 15

The gradient of the line

Question 16

gradient (calculation)

Answer 16

gradient = vertical difference between two points on a graph/ horizontal difference between the same two points