physics formuals p1-3

Question 1

density

Answer 1

mass /

volume

Question 2

charge in thermal energy

Answer 2

mass x specific heat capacity x change in temperature

Question 3

thermal energy for a change in state

Answer 3

mass x specific latent heat

Question 4

distance

Answer 4

speed x time

Question 5

acceleration

Answer 5

change in velocity / time

Question 6

(final velocity)2 - (initial velocity)2

Answer 6

2 x acceleration x distance

Question 7

kinetic energy

Answer 7

0.5 x mass x (speed)*2

Question 8

force

Answer 8

mass x acceleration

Question 9

momentum

Answer 9

mass x velocity

Question 10

work done

Answer 10

force x distance

Question 11

power

Answer 11

work done / time

Question 12

force exerted by a spring

Answer 12

extension x spring constant

Question 13

energy transferred in stretching

Answer 13

0.5 x spring constant x (extension)*2

Question 14

gravitational force

Answer 14

mass x gravitational field strength

Question 15

gravitational field potential energy

Answer 15

mass x height x gravitational field strength

Question 16

charge flow

Answer 16

current x time

Question 17

potential difference

Answer 17

current x resistance

Question 18

energy transferred

Answer 18

charge x potential difference

Question 19

power

Answer 19

potential difference x current

Question 20

power

Answer 20

(current)*2 x resistance

Question 21

energy transferred

Answer 21

power x time

Question 22

force on a conductor carrying a current

Answer 22

magnetic flux density x current x length