Term
|
Definition
| Energy is a calculation tool |
|
|
Term
| What units is energy measured in? |
|
Definition
|
|
Term
|
Definition
| Power is the rate of energy transfer |
|
|
Term
|
Definition
|
|
Term
| What units is power measured in? |
|
Definition
|
|
Term
| Fuels and foods are examples of what energy store? |
|
Definition
|
|
Term
| A mass lifted up is what energy store? |
|
Definition
| Gravitational store of energy |
|
|
Term
| The equation for calculating energy in a gravitational store is... |
|
Definition
|
|
Term
| A moving mass is what energy store? |
|
Definition
|
|
Term
| The equation for calculating energy in a kinetic store is... |
|
Definition
|
|
Term
| A mass heated up is what energy store? |
|
Definition
|
|
Term
| The equation for calculating the change in energy in a thermal store is... |
|
Definition
|
|
Term
| Something bent, stretched or squashed is what energy store? |
|
Definition
|
|
Term
| The equation for calculating the energy in an elastic store is... |
|
Definition
|
|
Term
| Particles in the nucleus of an atom are what energy store? |
|
Definition
|
|
Term
| The equation for calculating the energy in a nuclear store is... |
|
Definition
|
|
Term
|
Definition
| The energy transfer pathway when a force is moving |
|
|
Term
| What is the equation for calculating energy transferred through mechanical work? |
|
Definition
|
|
Term
| Is an electric circuit an energy store or a energy transfer pathway? |
|
Definition
|
|
Term
| What are the equations for calculating the rate of energy transfer (power) in an electric circuit? |
|
Definition
|
|
Term
| Give examples of ways that energy is transferred by heating by particles |
|
Definition
| Conduction and convection |
|
|
Term
| Give examples of ways that energy is transferred by heating by radiation |
|
Definition
|
|
Term
| Would you normally treat a sound wave as an energy store or a transfer patheway? |
|
Definition
|
|
Term
| How does conduction transfer energy? |
|
Definition
| Energy is transferred from one vibrating particle to the next |
|
|
Term
| How does convection transfer energy? |
|
Definition
| Energy is transferred by the movement of a fluid |
|
|
Term
|
Definition
|
|
Term
| Describe a convection current? |
|
Definition
A fluid is heated
The particles move faster
Collisions make the particles move further apart
The fluid expands
So the density of the fluid decreases
The less dense fluid rises
Colder, more dense fluid takes its place |
|
|
Term
| Light, shiny surfaces are... |
|
Definition
Poor absorbers of IR radiation
Poor emitters of IR radiation
They reflect a lot of IR radiation |
|
|
Term
| Dark, matt surfaces are... |
|
Definition
Good absorbers of IR radiation
Good emitters of IR radiation
They do not reflect much IR radiation |
|
|
Term
| If the average speed of particles increases, what measurement must increase? |
|
Definition
|
|
Term
| When a substance melts, what happens to the energy in the thermal store? |
|
Definition
|
|
Term
| When a substance solidifies, what happens to the energy in the thermal store? |
|
Definition
|
|
Term
| When a substance boils, what happens to the energy in the thermal store? |
|
Definition
|
|
Term
| When a substance condenses, what happens to the energy in the thermal store? |
|
Definition
|
|
Term
| When a substance changes state, what happens to its temperature? |
|
Definition
|
|
Term
| When a substance changes state, what happens to bonds between particles? |
|
Definition
| They are broken or formed |
|
|
Term
| When a substance changes state, what happens to the average speed of the particles? |
|
Definition
|
|
Term
| Define specific latent heat of a substance |
|
Definition
| The amount of energy transferred when 1 kg of a substance changes state |
|
|
Term
| What is the equation for specific latent heat? |
|
Definition
|
|
Term
| Specific latent heat of fusion is for... |
|
Definition
|
|
Term
| Specific latent heat of vapourisation is for... |
|
Definition
|
|
Term
| Which is bigger for any substance, specific latent heat of fusion, or vapourisation? |
|
Definition
|
|
