Moving And Storing Heat

Question 0

What does absolute scale mean?

Answer 0

Can’t go lower than zero

Question 1

What happens to particles when heated?

Answer 1

Gains kinetic energy KE
Gas and liquid particles move faster
Solids vibrate more rapidly

Question 2

What is temperature a measure of?

Answer 2

Average kinetic energy of particles

Hotness

Question 3

When does energy flow

Answer 3

When there is a difference in temperature
Flows from hot to cold
Faster rate of cooling when greater difference in temperature

Question 4

What is specific heat capacity?

Answer 4

Measure of how much energy a substance can store

Amount of energy needed to raise temperature of 1kg of a substance by 1degree c

Question 5

Why is water good for central heating systems?

Answer 5

Has high specific heat capacity

Liquid - can be pumped around buildings

Question 6

Give an Equation for energy, using specific heat capacity

Answer 6

Energy = mass x specific heat capacity x temperature change

Use formula triangle