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Year 5 - Science

Pushes and pulls

Forces including simple machines

Unit Summary

This unit covers the effects of gravity, air resistance, water resistance, and friction on objects. It explores how mechanisms like levers, pulleys, and gears magnify forces. Emphasis is on taking precise measurements, recording complex data, and presenting findings.

Lesson Summary

You will learn to measure the size of pushes and pulls using a force meter.

Key Notes

  • Pushes and pulls are forces. Different types of forces can be contact or non-contact forces.
  • Forces can change an object's speed, direction, and/or shape.
  • Forces can be measured using a force meter, also known as a newton meter.
  • A force meter works by stretching a spring – as the downward force due to gravity increases, the spring stretches.
  • Forces are measured in newtons (N), named after Sir Isaac Newton.

Vocabulary To Learn

  • force: A force is a push or a pull. Forces can make objects move, change speed, change direction or change shape.
  • force meter: A force meter is a piece of equipment used to measure the size of a force. It is also called a newton meter.
  • push: A push is a force that moves an object further away.
  • pull: A pull is a force that brings an object closer.
  • newtons (N): The size of a force is measured in newtons.

Common Mistakes To Avoid

  • Forces only act on moving objects.

3 Quick Questions (With Answers)

1. Explain the scientific idea in this lesson using two key points.

Pushes and pulls are forces. Different types of forces can be contact or non-contact forces. Forces can change an object's speed, direction, and/or shape.

2. Define this scientific word and use it in context. 'force'

A force is a push or a pull. Forces can make objects move, change speed, change direction or change shape. Include the word in a full scientific explanation, not as a single label.

3. Correct this common scientific misunderstanding.

Mistake: Forces only act on moving objects. Correction: Examples of forces being used to move stationary objects will be included.

More Lessons In This Unit

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