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Lesson 3

Chapter 2 — Forces

Section 2 more than one force

This lesson:

Previous lesson
Discussing the homework
Section 2
Working on exercises

1 / 35

Slide 1: Slide

PhysicsMiddelbare schoolvwoLeerjaar 3

This lesson contains 35 slides, with text slides.

Lesson duration is: 45 min

Items in this lesson

Chapter 2 — Forces

Section 2 more than one force

This lesson:

Previous lesson
Discussing the homework
Section 2
Working on exercises

Slide 1 - Slide

Previous lesson

Slide 2 - Slide

Measuring force

Slide 3 - Slide

You can also calculate it

F_g: Gravitational Force
M: Mass
g: gravitational field strength

F^{​ g ​ ​} = m \cdot g

Slide 4 - Slide

You can also calculate it

F_g: Gravitational Force
M: Mass
g: gravitational field strength

F^{​ g ​ ​} = m \cdot g

Slide 5 - Slide

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.

Slide 6 - Slide

Slide 7 - Slide

center of gravity

Slide 8 - Slide

Discussing the homework

Slide 9 - Slide

Discussing the homework

Slide 10 - Slide

Section 2

More than one force

Slide 11 - Slide

Forces accelerate

In that case we're talking about net force.
What is Net force?

Slide 12 - Slide

Resultant force

Slide 13 - Slide

Resultant force

Slide 14 - Slide

Force and extension

Slide 15 - Slide

Force and extension

Slide 16 - Slide

Force and extension

Slide 17 - Slide

Force and extension

Slide 18 - Slide

Force and extension

C = \frac{​ F ​ ​}{​ x ​}

C: Spring constant (in N/m)

F: Force (in N)

x: Extension (in m)

Slide 19 - Slide

Slide 20 - Slide

Slide 21 - Slide

Homework

Read: Chapter 2, Section 2

Do: Exercise 3, 4, 5 and 6

Slide 22 - Slide

Section 2

More than one force

Slide 23 - Slide

Forces accelerate

In that case we're talking about net force.
What is Net force?

Slide 24 - Slide

Resultant force

Slide 25 - Slide

Resultant force

Slide 26 - Slide

Resultant force

Slide 27 - Slide

Force and extension

Slide 28 - Slide

Force and extension

Slide 29 - Slide

Force and extension

Slide 30 - Slide

Force and extension

Slide 31 - Slide

Force and extension

C = \frac{​ F ​ ​}{​ x ​}

C: Spring constant (in N/m)

F: Force (in N)

x: Extension (in m)

Slide 32 - Slide

Slide 33 - Slide

Slide 34 - Slide

Homework

Read: Chapter 2, Section 2

Do: Exercise 3, 4, 5 and 6

Slide 35 - Slide

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