Electromagnetic induction - SP13

Question 1

What can a changing magnetic field induce in a conductor?

Answer 1

potential difference

Question 2

what does the size of the potential difference in a conductor depend on?

Answer 2

• number of turn s in a coil of wire
• field strenth of magnet used
• rate of change of magnetic field strength

Question 3

what is the temperature of a substances measured by?

Answer 3

movement of particles

Question 4

what does the amount of thermal energy stored in an object depend on?

Answer 4

temperature, mass and material

Question 5

what is specific heat capacity of a substance?

Answer 5

amount of energy needed to increase the temperature of 1kg of that substance by 1C

Question 6

what 2 things cpould happen when heat energy is put into an object?

Answer 6

increase temp or change state

Question 7

what does heat capacity do?

Answer 7

tell us how much temperature of an object will change

Question 8

what odes latent heat do?

Answer 8

tell us how much of an object (in kg) will change state

Question 9

what is specific latent capacity of a substance?

Answer 9

amount of energy required to change state of 1kg of a substance