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Forces and Motion Investigation

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Forces and Motion Investigation

Forces and motion diagram

🔬 Part 1: Understanding Forces

1. What is a force?

A type of energy

A push or pull that can change motion

The speed of an object

The weight of an object

2. Which of these are examples of contact forces? (Tick all that apply)

Friction between tyres and road

Gravity pulling an apple down

Pushing a trolley

Magnetic force on a paperclip

3. Which of these are examples of non-contact forces? (Tick all that apply)

A magnet attracting iron filings

Kicking a football

Earth's gravity on the Moon

Pulling a rope

4. In Newton's Second Law (F = ma), what does each letter represent?

F = _______________

m = _______________

a = _______________

📊 Part 2: Force Diagrams and Calculations

5. Draw force arrow diagrams for the following situations. Remember: arrow length shows magnitude, arrow direction shows force direction.

a) A box being pushed to the right with a force of 20N

b) A ball falling down due to gravity (10N downward)

6. Calculate the missing values using F = ma. Show your working.

a) Force = 50N, mass = 10kg, acceleration = _____ m/s²

b) Force = _____ N, mass = 5kg, acceleration = 4 m/s²

7. A toy car has a mass of 2kg. If you apply a force of 8N, what will be its acceleration?

🧪 Part 3: Investigation Analysis

8. Based on your class investigation, explain what happens to acceleration when:

a) The force increases but mass stays the same:

b) The mass increases but force stays the same:

9. Give one example each of how forces are used in these traditional Aboriginal tools:

Spearthrower: ________________________________

Boomerang: ___________________________________

10. Describe one everyday situation where you can observe Newton's Second Law (F = ma) in action:

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