Motion

Question 1

what is the equation for speed of an object?

Answer 1

speed = distance travelled
————————
time taken

Question 2

if a distance time graph is stationary, what does the line look like?

Answer 2

a horizontal line

Question 3

if an object is moving on a distance-time graph at a constant speed, what does the line look like?

Answer 3

the line is sloped upwards

Question 4

what represents the speed in a distance-time graph?

Answer 4

the gradient.

Question 5

what is the equation for average speed?

Answer 5

average speed = total journey distance
——————————
total journey time

Question 6

what is instantaneous speed?

Answer 6

how fast you are going at an exact moment

Question 7

what is the equation for acceleration?

Answer 7

acceleration = change in velocity (m/s)
————————
time(s)

Question 8

how many metres per second is 60 mph?

Answer 8

27m/s

Question 9

on a velocity time graph, how is acceleration shown?

Answer 9

by the gradient

Question 10

on a velocity time graph how is distance traveled shown?

Answer 10

by the area under the velocity time graph