Lesson 2 — Introduction to forces

• Forces
• Middelbare school
• havo, vwo
• Leerjaar 1

Science period 1

Introduction to forces

Force what comes to mind?

Discuss for 2 minutes with your neighbour what you think this chapter will be about.

Class discussion

• if an object is moving, a force acts on it
• 
  

Tug of war

This lesson

• Tug of war
  
• Science in year 1
• What is force? How does it work?
•  working on paragraph 1.1

Goals

• Explain what force is in your own words
  
• Name what force is measured in
• Name at least three types of forces
  

Science year 1

Period 1 Forces	Period 2 Energy
Period 3 Matter	Period 4 Astronomy

The materials you need

• Your books
• Your notebook
• A calculator
• A protractor

Forces

Force what comes to mind?

Discuss for 2 minutes with your neighbour what you think this chapter will be about.

Class discussion

• if an object is moving, a force acts on it
• 
  

What is force?

Force is a push or pull

 that change the way an object moves.

Force is a push or pull that change the way an object moves.

Force is a push or pull that change the way an object moves.

• you cannot see forces, only their effect.
  

Force is a push or pull that change the way an object moves.

• you cannot see forces, only their effect.
  

Forces can change an object in three ways:

Force is a push or pull that change the way an object moves.

• you cannot see forces, only their effect.
  

Forces can change an object in three ways:

•  change the speed of an object.
  

Force is a push or pull that change the way an object moves.

• you cannot see forces, only their effect.
  

Forces can change an object in three ways:

•  change the speed of an object.
  
• change the direction of an object's motion.
  

Force is a push or pull that change the way an object moves.

• you cannot see forces, only their effect.
  

Forces can change an object in three ways:

•  change the speed of an object.
  
• change the direction of an object's motion.
  
• ?

Force is a push or pull that change the way an object moves.

• you cannot see forces, only their effect.
  

Forces can change an object in three ways:

•  change the speed of an object.
  
• change the direction of an object's motion.
  
• Change the shape of an objects.
  

Measuring forces

Measuring forces

Distance is measured in...

• Meters
  

Time is measured in...

• Seconds
  

Force is measured in...

• Newtons

Force is measured in: 

newtons (N)

Force is measured in: 

newtons (N)

named after Isaac Newton

Working on § 1.1 — Homework

• Read § 1.1
  
• Be able to name at least three types of forces and give examples of them
• Do the yellow block exercises in the textbook

Goals

• Explain what force is in your own words
• Name what force is measured in
• Name at least three types of forces