les 5

Today's lesson
  • The homework
  • Friction
  • Friction and movement
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Slide 1: Slide
Natuurkunde / ScheikundeMiddelbare schoolvwoLeerjaar 1

This lesson contains 14 slides, with text slides.

Items in this lesson

Today's lesson
  • The homework
  • Friction
  • Friction and movement

Slide 1 - Slide

goals
  • Give examples of friction.
  • Explain the cause of friction.

Slide 2 - Slide

The homework

Slide 3 - Slide

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 4 - Slide

Friction

Slide 5 - Slide

Friction
What is the unit of friction?
  • Newtons

Slide 6 - Slide

Friction.
What causes friction?

  • difference in texture
  • Surface sticking together

Slide 7 - Slide

Slide 8 - Slide

Friction.
In what direction does friction act?

  • In the opposite to the motion.

Slide 9 - Slide

Slide 10 - Slide

100 N
30 N

Slide 11 - Slide

Working independently
Homework:
workbook page 8 and 9
1.2 exercise E
1.3 exercise 1


Slide 12 - Slide

What did we do 
this lesson?

Slide 13 - Slide

goals
  • Give examples of friction.
  • Explain the cause of friction.

Slide 14 - Slide