Lesson 2 — Section 1 Types of forces

Chapter 2 — Forces
Section 1 types of forces
This lesson:
  • What is force?
  • Types of forces
  • Measuring force
  • Calculating gravitational force
  • Drawing force
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This lesson contains 13 slides, with text slides.

time-iconLesson duration is: 45 min

Items in this lesson

Chapter 2 — Forces
Section 1 types of forces
This lesson:
  • What is force?
  • Types of forces
  • Measuring force
  • Calculating gravitational force
  • Drawing force

Slide 1 - Slide

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Do the introduction questions on page 66
  • 5 minutes
  • We'll look at the answers togeteher

Slide 2 - Slide

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What is force?

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What is force?
  • Star wars
  • Change motion

what is the effect of force?

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Forces cause objects to accelerate
  • Changing speed
  • Changing direction
  • Changing shape (deformation) — Plastic and elastic

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Types of forces
Step 1 — Individually (3 min)
  • Think of at least 3 different types of forces 
  • Come up with two examples per forces

Step 2 — In pairs (3 min)
  • Discuss your answers with your neighbour.
  • Come up with one more type of force together and 2 new examples for it.

Step 3 — Classical discussion

Slide 6 - Slide

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Types of forces in the book
  • Muscular strength
  • Resilience (veer kracht)
  • Tension
  • Gravity
  • Magnetic force
  • Electric force
  • Friction
  • Air resistance

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Measuring force

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You can also calculate it

  • Fg: Gravitational Force
  • M: Mass
  • g: gravitational field strength
Fg=mg

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You can also calculate it

  • Fg: Gravitational Force
  • M: Mass
  • g: gravitational field strength
Fg=mg

Slide 10 - Slide

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Drawing forces — Vectors
Forces has:
  • A magnitude
  • A direction
  • A point of exertion

When you draw forces you first decide a force scale. 
For example: 1 cm ≡ 5 N.

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Homework
All the exercises of section 1.

Slide 13 - Slide

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