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Year 7

Energy

I can identify different energy stores that objects have and explain why they have each energy store.

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New
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Year 7

Energy

I can identify different energy stores that objects have and explain why they have each energy store.

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Share activities with pupils
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Lesson details

Key learning points

  1. Objects can have energy because they are: moving, raised, hot, stretched/squashed, or contain chemicals that can react.
  2. When an object is said to have energy, this is really just saying the object has certain properties.
  3. Objects can have gravitational, thermal, elastic, chemical and kinetic stores of energy.
  4. Having energy means having properties that allow objects to interact, cause changes and make things happen.

Keywords

  • Chemical store - Objects that contain chemicals that can react, have a chemical store of energy.

  • Thermal store - Objects have a thermal store of energy because of their temperature.

  • Kinetic store - Objects that are moving have a kinetic store of energy.

  • Gravitational store - Objects that are raised up have a gravitational store of energy.

  • Elastic store - Objects that are stretched or squashed have an elastic store of energy.

Common misconception

Energy is some sort of physical substance that objects have.

Energy is just a label for having certain properties. The properties are what allow objects to interact / cause change / make things happen.

Many of the images or situations included in the slide deck could be demonstrated by the teacher, or set up around the room for pupils to explore in person. For Y7, only the five most easily understood energy stores need to be introduced.
Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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Starter quiz

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6 Questions

Q1.
The word 'energy' has a scientific meaning, but also has non-scientific meanings in everyday life. Which pupil is using the word energy with it's proper scientific meaning?
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
Q2.
Which of these do you think have energy?
Correct answer: a moving car
Correct answer: a hot pie
Correct answer: firewood
Correct answer: a stretched rubber band
Correct answer: the human body
Q3.
Which do you think has more energy?
100g of ice
100g of cold water
Correct answer: 100g of hot water
Q4.
Which do you think would have more energy?
A slack bungee rope.
A bungee rope stretched by 1 metre.
Correct answer: A bungee rope stretched by 5 metres.
Q5.
Which do you think has most energy due to its movement?
Correct answer: A train at 80 mph.
A train at 50 mph.
A train at 60 mph.
Q6.
Starting with the least energy, sort these food items into order of increasing energy content.
1 - A stick of celery.
2 - A slice of toast with low-fat spread.
3 - A cupcake with icing.
4 - A serving of deep-fried fish and chips.

Exit quiz

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6 Questions

Q1.
Which statement best describes energy?
Energy is a substance.
Energy is a force.
Correct answer: We say objects have energy when they have certain properties.
Q2.
Which of the below properties mean an object has energy?
Correct answer: If the object is moving.
Correct answer: If the object is high up.
Correct answer: If the object is stretched.
Correct answer: If the object has a temperature.
Correct answer: If the object contains chemicals that can react.
Q3.
When an object has energy, we say it has a of energy.
Correct Answer: store
Q4.
Match each reason an object can have energy to the correct name of each energy store.
Correct Answer:gravitational store of energy,objects that are raised up

objects that are raised up

Correct Answer:thermal store of energy,objects that have a temperature

objects that have a temperature

Correct Answer:elastic store of energy,objects that are stretched or squashed

objects that are stretched or squashed

Correct Answer:chemical store of energy,objects that contain chemicals that can react

objects that contain chemicals that can react

Correct Answer:kinetic store of energy,objects that are moving

objects that are moving

Q5.
Identify the energy stores that this moving aeroplane has.
An image in a quiz
Correct answer: a gravitational store of energy
Correct answer: a thermal store of energy
an elastic store of energy
Correct answer: a chemical store of energy
Correct answer: a kinetic store of energy
Q6.
Which of these increase the stored energy?
Correct answer: If the object's speed increases.
If the object is put at a lower height.
If a stretched elastic band is slowly allowed to become slack again.
Correct answer: If an object's temperature rises.
Correct answer: If a battery is recharged.
Q5 "Cessna 152 Aerobat G-BOSO at Redhill in 1992" by Harry Clampers is licensed under CC BY 2.0.. https://creativecommons.org/licenses/by/2.0/deed.en