equations for physics

Question 1

what is the equation for kinetic energy

Answer 1

kinetic energy = 1/2 x mass x speed (squared)

Question 2

what is the equation for GPE (Gravitational Potential Energy)

Answer 2

mass x gravitational field strength x height

Question 3

what is the equation for power

Answer 3

power = work done/time taken
which is the same as energy transferred/time taken
or power = current x potential difference
or power = resistance x current(squared)

Question 4

what is the equation for efficiency

Answer 4

efficiency = useful energy output/total energy input

Question 5

what is the equation for potential difference

Answer 5

potential difference = current x resistance

Question 6

what is the equation for charge flow

Answer 6

charge flow = current x time

Question 7

what is the equation for total resistance

Answer 7

total resistance = resistance of component 1 + resistance of component 2

Question 8

what is the equation for energy transferred

Answer 8

energy transferred = power x time

Question 9

what is the equation for density

Answer 9

density = mass/volume

Question 10

What’s the equation for the change in thermal energy

Answer 10

change in thermal energy = mass x specific heat capacity x temperature change

Question 11

What does a potential difference of 1 volt us

Answer 11

It tells us that 1 joule of energy is transferred for each coulomb of charge that is moving through the circuit, if it was 3 volts it would be 3 joules per coulomb of charge