2. Kinematics

Question 1

Average speed

Answer 1

Total distance travelled/ total time taken

Question 2

Uniform speed

Answer 2

Change in distance travelled per unit time is constant

Question 3

What is acceleration?

Answer 3

1. The rate of change of velocity
2. when speed or direction changes

Question 4

How to find distance in speed-time graph

Answer 4

Area under graph

Question 5

Acceleration of free fall

Answer 5

10m/s^2

Question 6

Does the distance-time graph curve upwards or downwards when speed increase?

Answer 6

curve upwards

Question 7

Difference of non-uniform speed and uniform speed in distance time graph

Answer 7

1. Non-uniform speed will curve upwards or downwards
2. Uniform speed will go straight up

Question 8

For speed time graph, if line is straight but above axis, what does it mean?

Answer 8

Car is still moving but no acceleration is present.