physics all topics

Question 1

what is this equation for:
0.5 x mass x (speed)^2

Answer 1

kinetic energy

Question 2

what is this equation for:
0.5 x spring constant x (extension)^2

Answer 2

elastic potential energy

Question 3

what is this equation for:
mass x gravitational field strength x height

Answer 3

gravitational potential energy

Question 4

mass x specific heat capacity x temperature change

Answer 4

change in thermal energy

Question 5

energy transferred
____________________
time

Answer 5

power

Question 6

output energy transfer
____________________________
total input energy transfer

Answer 6

efficiency

Question 7

work done
_____________
time

Answer 7

power

Question 8

power output
_______________
total power input

Answer 8

efficiency

Question 9

current x time

Answer 9

charge flow

Question 10

current x resistance

Answer 10

potential difference

Question 11

potential difference x current

Answer 11

power

Question 12

(current)^2 x resistance

Answer 12

power

Question 13

power x time

Answer 13

energy transferred

Question 14

charge flow x potential difference

Answer 14

energy transferred

Question 15

mass
______
volume

Answer 15

density

Question 16

mass x specific latent heat

Answer 16

thermal energy for a change of state

Question 17

mass x gravitational field strength

Answer 17

weight

Question 18

mass x velocity

Answer 18

momentum

Question 19

1
____________
frequency

Answer 19

period

Question 20

frequency x wavelength

Answer 20

wavespeed