Topic A.1 Kinematics

Question 1

Magnitude

Answer 1

Size

Question 2

Scalar quantity

Answer 2

Only have a magnitude

Question 3

Vector quantity

Answer 3

Measured with a magnitude and direction

Question 4

Distance

Answer 4

How far you have travelled (m)

Question 5

Displacement

Answer 5

The distance travelled in a particular direction (ie start to finish point) metres (m)

Question 6

Speed

Answer 6

Rate of change of distance (ms-1)

Question 7

Velocity

Answer 7

Rate of change of position (displacement divided by time) (ms-1)

Question 8

Acceleration

Answer 8

Rate of change of velocity (change in velocity/time) (ms-2) 9.8ms-2 down on earth

Question 9

Negative acceleration

Answer 9

The direction of the net force is in a negative direction

Question 10

Acceleration of free fall on earth

Answer 10

9.8ms-2

Question 11

Displacement symbol and unit

Answer 11

s, m

Question 12

Initial velocity symbol and unit

Answer 12

u, ms-1

Question 13

Projectile

Answer 13

An object moving through the air under only the influence of gravity

Question 14

Vertical component of a projectile

Answer 14

Is constantly changing due to the downwards force of gravity

Question 15

Horizontal component of a projectile

Answer 15

Is constant as no forces act horizontally

Question 16

Distance-time graphs

Answer 16

Gradient = speed

Question 17

Displacement-time graphs

Answer 17

Gradient = velocity

Question 18

Speed time graphs

Answer 18

Gradient=acceleration

Question 19

Velocity time graphs

Answer 19

Gradient = acceleration
Area below line = displacement

Question 20

Acceleration time graphs

Answer 20

Area below line = change in velocity