GCSE-MotionEquations-Graphs

Question 1

Finding acceleration from a velocity time graph: acceleration = ?

Answer 1

gradient

Question 2

Finding speed from a distance-time graph: speed = …?

Answer 2

gradient

Question 3

v-t graph shape for uniformly accelerated motion from rest

Answer 3

Straight line through origin

Question 4

Equation linking initial velocity and final velocity with acceleration

Answer 4

v = u + at

Question 5

Finding displacement from a velocity time graph: Displacement = …???

Answer 5

area under graph

Question 6

The S-t graph for uniformly accelerated motion is a …?

Answer 6

curve

Question 7

As time increases the S-t graph for uniformly accelerated motion becomes…?

Answer 7

steeper

Question 8

Equation linking average speed and distance travelled.

Answer 8

average speed = distance travelled / time taken

Question 9

Equation linking displacement with initial and final velocities and time

Answer 9

S = 1/2 (u+v) t

Question 10

All objects moving freely through the air (ignoring air resistance) have the same…?

Answer 10

acceleration

Question 11

The direction of the acceleration due to gravity is always …?

Answer 11

vertically downwards

Question 12

On Earth the size of the acceleration due to gravity is always …?

Answer 12

10 m/s²

Question 13

Equation linking average speed, initial speed and final speed. (also works with velocities)

Answer 13

average speed = 1/2 (initial speed + final speed)
(or replace speed with velocity)

Question 14

A negative acceleration is called a …

Answer 14

retardation.