Year 7 - Science
Energy
Forces
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit focuses on quantifying and comparing energy transfers in different processes, such as motion changes, electrical circuits, and fuel burning. It examines forces as interactions between objects, using diagrams and measurements, including contact and non-contact forces.
Lesson Summary
You will learn to identify different energy stores that objects have and explain why they have each energy store.
Key Notes
- Objects can have energy because they are: moving, raised, hot, stretched/squashed, or contain chemicals that can react.
- When an object is said to have energy, this is really just saying the object has certain properties.
- Objects can have gravitational, thermal, elastic, chemical and kinetic stores of energy.
- Having energy means having properties that allow objects to interact, cause changes and make things happen.
Vocabulary To Learn
- 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 Mistakes To Avoid
- Energy is some sort of physical substance that objects have.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
Objects can have energy because they are: moving, raised, hot, stretched/squashed, or contain chemicals that can react. When an object is said to have energy, this is really just saying the object has certain properties.
2. Define this scientific word and use it in context. 'chemical store'
Objects that contain chemicals that can react, have a chemical store of energy. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: Energy is some sort of physical substance that objects have. Correction: Energy is just a label for having certain properties. The properties are what allow objects to interact / cause change / make things happen.
More Lessons In This Unit
Browse all guides in the Year 7 Science guide library.