Transferring energy
I can identify when stores of energy change, and describe causes of energy transfer between stores.
- Year 7
Transferring energy
I can identify when stores of energy change, and describe causes of energy transfer between stores.
Lesson details
Key learning points
- Energy cannot be created or destroyed.
- Energy can be transferred by forces that change the properties of an object (or system).
Keywords
Store of energy - A store of energy describes the different ways in which energy can be stored.
Surroundings - An object’s surroundings include everything that is around it.
Energy transfer - An energy transfer takes place when the amount of energy in some stores decreases and increases in others.
Common misconception
Energy can be used up.
Describe the mechanisms that transfer energy from one object to another, or to a system, as the energy in the original object decreases – or vice versa.
Equipment
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Which picture shows an elastic store of energy?
Q2.Objects that are moving have a store of energy.
Q3.If an object gets hotter, its store of energy increases.
Q4.Match each action with the energy store that increases as a result of the action.
increases the object's gravitational store of energy.
increases the object's kinetic store of energy.
increases the object's thermal store of energy.
increases the object's elastic store of energy.
Q5.Which of these can cause the temperature of an object to increase?
Q6.A car drives downhill whilst also using the engine to get faster. Match each process that happens to the correct energy store that changes.
decreases the car's chemical store of energy.
increases the car's kinetic store of energy.
decreases the car's gravitational store of energy.
increases the surrounding's thermal store of energy.
Assessment exit quiz
6 Questions
Q1.When energy moves from one store to another, this is called an energy ...
Q2.Only one of these statements about energy is true and the other two are false. Choose the correct statement.
Q3.Which energy store do 'the surroundings' around an object always have?
Q4.Match each situation to the correct reason why energy is transferred.
friction and drag forces act (in the opposite direction).
the surroundings are at a lower temperature.
a gravitational force acts downwards (in the opposite direction).
a chemical reaction causes an electric current to flow.