p1.4 - s.h.c

Question 1

internal energy

Answer 1

Total energy stored by the particles making up a substance or system
Made up of potential energy stores and kinetic energy stores

Question 2

Potential energy stores

Answer 2

Gravitational potential
Elastic potential

Question 3

Kinetic energy stores

Answer 3

Movement energy of the particles

Question 4

When you heat up a substance…

Answer 4

It transfers energy to kinetic energy stores of all the particles - increases their internal energy - increase in temp

Question 5

Temperature is a measure of

Answer 5

The average internal energy of a substance

Question 6

S.h.c of water

Answer 6

4200 J

Question 7

S.h.c

Answer 7

The amount of energy needed to raise the temperature of 1kg of a substance by 1 degree Celsius

Amount of energy released as substance cools

Question 8

S.h.c equation

Answer 8

Change in internal energy (J) = mass (kg) x s.h.c (J/kg degree Celsius) x temp change (degree Celsius)