Formulas

Question 1

Final velocity 2 - initial velocity 2

Answer 1

2 x acceleration x distance

Question 2

Wave speed 2

Answer 2

Distance divide time

Question 3

Momentum

Answer 3

Mass x velocity

Question 4

Force

Answer 4

Change in momentum divide time

Question 5

Acceleration

Answer 5

Change in velocity divide time taken

Question 6

Pressure /volume for objects at a constant temperature

Answer 6

P1 x v2 = p2 x v2

Question 7

Weight

Answer 7

Mass x gravitational field strength

Question 8

Force exerted on a spring

Answer 8

Spring constant x extension

Question 9

Wave speed 1

Answer 9

Frequency x wavelength

Question 10

Efficiency

Answer 10

Useful energy divide total energy

Question 11

Kinetic engergy

Answer 11

1/2 x m x v2

Question 12

Change in GPE

Answer 12

M x g x change in h

Question 13

Density

Answer 13

Mass divide volume

Question 14

Energy transferred by stretching

Answer 14

1/2 x spring constant x extension 2

Question 15

Thermal energy for change in store

Answer 15

Mass x specific latent height

Question 16

Distance travelled

Answer 16

Average speed x time

Question 17

Force

Answer 17

Mass x acceleration

Question 18

Change in thermal energy

Answer 18

Mass x specific heat capacity x change in temperature

Question 19

Pressure

Answer 19

Force normal to surface divide area of surface