7 On the move

Question 1

displacement

Answer 1

distance in given direction

s=vt

Question 2

speed

Answer 2

change of distance per unit time
V=s/t
v=2πr /T

Question 3

velocity

Answer 3

change of displacement per unit time

Question 4

distance- time graph

Answer 4

speed of the object = distance travelled/ time taken = gradient of the line

Question 5

constant velocity

Answer 5

moves at the same speed without changing its direction of motion

Question 6

acceleration

Answer 6

defined as change of velocity per unit time

vector

Question 7

uniform acceleration

Answer 7

V = u+at

gradient of the line on a velocity-time graph

Question 8

acceleration of free fall

Answer 8

acceleration of an object acted on only by the force of gravity