P6: Molecules and Matter
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What is the equation to work out density
Mass/Volume
What is the correct standard unit of density
kg/m3 Kilograms per metres cubed
How do we work out internal energy
Combine the kinetic energy with the potential energy
What happens as we increase internal energy
Both kinetic energy and potential energy increase. This causes a temperature rise
What happens if we heat something
More energy is transferred
What is it called when particles in a substance are constant
Brownian Motion
How do we work out specific heat capacity
Energy / (Temperature X Mass)
What is specific heat capacity measured in
J/Kg 0 c Joules per kilogram degree Celsius
What is specific latent heat of fusion
Amount of energy needed to turn a solid into a liquid
What happens if increase the temperature of a gas
If we have a container full of gas, as temperature increases, pressure increases
What is density
The mass per unit volume of a substance
How do we work out the volume of a regularly shaped object
Width X Height X Depth
What is everything made of
Particles
What is internal energy
The total energy stored by particles of a substance
What is the specific latent heat of vaporisation
Amount of energy needed to turn a liquid into a gas
What are the units of specific latent heat
J/Kg Joules per kilogram
What can the movement of particles be known as
Random
What is specific latent heat
The energy transferred to or from a substance as it changes state
What does the Law of Displacement mean
An object submerged in a fluid replaces the amount of fluid equal to the volume
Order solid liquid gas from least dense to dense, starting with least dense
Gas, liquid, solid
What is the temperature of our body
A measure of energy in kinetic stores of particles
What happens if we increase body temperature
Kinetic energy stores of body’s particles are increased and internal energy stores of body’s particles are also increased
What is specific heat capacity
The amount of energy required to raise the temperature of 1kg of that substance by 1 degrees Celsius
How can we increase the internal energy of our body
A heater, via a joulemeter.