Physics topic 3

Question 1

Density equation

Answer 1

Density (p) = mass(m) /volume (v)
Kg/m3 = kg / m3

Question 2

Gas particles collide and create

Answer 2

Pressure

Question 3

The outward gas pressure is…

Answer 3

The total force exerted by all of the particles in the gas on a unit area of the container walls

Question 4

Changing temp changes

Answer 4

Pressure

Question 5

Internal energy

Answer 5

The internal energy of a system is the total energy that its particles have in their kinetic and potential energy stores

Question 6

Latent heat

Answer 6

Energy transferred when there’s a change of state

Question 7

Specific latent heat

Answer 7

Energy needed for a 1kg mass to change state without changing its temperature

Question 8

Specific latent heat for change between solid and liquid

Answer 8

Specific latent heat of fusion

Question 9

Specific latent heat between changes of liquid + gas

Answer 9

Specific latent heat of vaporisation

Question 10

Specific latent heat formula

Answer 10

Energy (j) = mass (kg) x specific latent heat (J/kg)

Question 11

Change of state =

Answer 11

Physical change