Lesson 6 — 1.3 Friction

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Slide 1: Slide
Natuurkunde / ScheikundeMiddelbare schoolhavoLeerjaar 1

This lesson contains 23 slides, with text slides and 1 video.

Items in this lesson

Slide 1 - Slide

This lesson
  • The homework
  • What is friction?
  •  Reducing and increasing friction
  • Working on exercises


Slide 2 - Slide

Learning goals
  • Give examples of friction
  • Describe the effect of friction on motion
  • Explain how to reduce friction
  • Describe how friction can be useful

Slide 3 - Slide

Discussing the homework

Slide 4 - Slide

Workbook question E
Thrust of the car (N)
Friction (N)
Air resistance (N)
Resultant force (N)
A
1500
700
800
B
3000
500
100
C
1000
600
500
D
2500
900
400

Slide 5 - Slide

Workbook question E
Thrust of the car (N)
Friction (N)
Air resistance (N)
Resultant force (N)
A
1500
700
800
0
B
3000
500
100
C
1000
600
500
D
2500
900
400

Slide 6 - Slide

Workbook question E
Thrust of the car (N)
Friction (N)
Air resistance (N)
Resultant force (N)
A
1500
700
800
0
B
3000
500
100
2400
C
1000
600
500
D
2500
900
400

Slide 7 - Slide

Workbook question E
Thrust of the car (N)
Friction (N)
Air resistance (N)
Resultant force (N)
A
1500
700
800
0
B
3000
500
100
2600
C
1000
600
500
100
D
2500
900
400

Slide 8 - Slide

Workbook question E
Thrust of the car (N)
Friction (N)
Air resistance (N)
Resultant force (N)
A
1500
700
800
0
B
3000
500
100
2400
C
1000
600
500
100
D
2500
900
400
1200

Slide 9 - Slide

What is friction?

Slide 10 - Slide

What is friction? — Exercise
In pairs of two, answer the following questions in your notebook:

  • Give at least 8 examples of friction.
  • Describe the effects of friction.
  • What is the cause of friction?

Slide 11 - Slide

What is friction? — Exercise
Give at least 8 examples of friction.



Slide 12 - Slide

What is friction? — Exercise
Describe the effects of friction.


  • It slows things down

  • Works in the opposite direction of a movement

  • generates heath

Slide 13 - Slide

What is friction? — Exercise
What is the cause of friction?

Slide 14 - Slide

Slide 15 - Slide

Friction
  • A force between two sufraces moving over each other.

  • Works in the opposite direction of an objects motion.

  • Slows objects down.

  • Generates heath.

Slide 16 - Slide

Friction demonstration

Slide 17 - Slide

Reducing and using friction

Slide 18 - Slide

Exercise

In pairs of two write down in your note book:

- at least 5 situations where friction is reduced.

- at least 5 situations where friction is useful.

Slide 19 - Slide

Increasing friction
Reducing friction

Slide 20 - Slide

Learning goals
  • Give examples of friction
  • Describe the effect of friction on motion
  • Explain how to reduce friction
  • Describe how friction can be useful

Slide 21 - Slide

Slide 22 - Video

Slide 23 - Slide