P3 Particle model of matter Flashcards Preview

AQA GCSE Physics 2016on > P3 Particle model of matter > Flashcards

Flashcards in P3 Particle model of matter Deck (15)
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1

What is the equation for calculating density?

Density = mass/volume

2

What unit is density measured in?

kilograms per metre cubed

3

What is the internal energy of a gas made up of?

The total of all the kinetic energy and potential energy of the particles.

4

Define specific heat capacity.

The energy required to raise the temperature of 1 kg of a substance by 1 degree Celsius.

5

Define specific latent heat.

The energy required to change the state of 1 kg of a substance at constant temperature.

6

What type of specfic latent heat produces a solid - liquid change?

Specific latent heat of fusion.

7

What type of specfic latent heat produces a liquid - gas change?

Specific latent heat of vaporisation.

8

For a fixed mass of gas at constant temperature, how are pressure and volume related?

pressure x volume = constant

9

What unit is pressure measured in?

Pascals (Pa)
(same as Newtons per metre squared)

10

What effect does doing work on a gas have?

Increases the internal energy and can increase the temperature.

11

What is all the energy stored in a system by the particles called?

Internal energy.

12

For a fixed volume of gas, what effect does changing the temperature of the gas have?

Changes the pressure.

13

If the temperature of a gas is constant, what effect will there be on the pressure, if the volume of the container the gas is in, is increased?

The pressure will decrease.

14

In a bicycle pump, what is the effect of doing work on the gas in it?

The temperature will increase.

15

What is a change of state from a solid, directly to a gas called?

Sublimation.