Physics

Question 1

Position time graph ?

Answer 1

Time = X AXIS
Position = Y AXIS

Question 2

Finding velocity with position time graph ?

Answer 2

Constant Average Velocity : Gradient of the line
Not constant average velocity : Gradient found by drawing a line between two points in time
Instantaneous velocity : Drawing a tangent through a particular point and finding gradient.

Question 3

Define acceleration

Answer 3

The rate at which an object changes its speed or direction. It is effected by 2 key factors:
- The amount of change in speed
- The time it takes for speed to change.

a= Δv/t

Question 4

Acceleration in relation to gradient of a line ?

Answer 4

The faster the acceleration, the steeper the line and the greater the gradient.

Question 5

Define motion

Answer 5

The change in position measured by distance and time

Question 6

Define speed

Answer 6

rate at which an object moves

Question 7

Velocity

Answer 7

Speed and direction of a moving object

Question 8

Define acceleration

Answer 8

The rate at which an object changes its speed. It is effected by 2 key factors:
- The amount of change in speed
- The time it takes for speed to change.

a= Δv/t