Les 4

• Natuurkunde / Scheikunde
• Middelbare school
• havo
• Leerjaar 1

Todays lesson

The homework

Types of forces

Balanced & unbalanced forces

Working on §1.2

Learning goals

• Give an example for several types of forces.
• What is the effect of balanced forces?
• What is the effect of unbalanced forces?

The homework

The homework

Types of forces 

balanced & unbalanced

Working on §1.2

Types of forces

• Gravitational force / weight
• Friction
  
• Thrust
• Upthrust
• Tension
• Electrostatic force
• Magnetic force

The homework

Types of forces 

balanced & unbalanced

Working on §1.2

Forces 1.1 — Summary

Force: a push or pull that can effect an object in 

three ways.

• Change it's speed.
• change the direction of it's motion.
• Change it's shape.

The unit of force is Newton (N).

Force can be drawn as an arrow.

Force is measured using a spring balance.

Types of forces:

• Gravitational force
• Weight
• Electrostatic force
• Magnetic force
• Friction
• Thrust
• Upthrust
• Tension

Balanced and unbalancedForces

The homework

Types of forces 

balanced & unbalanced

Working on §1.2

Working on § 1.2

Homework:

The yellow block questions of §1.2.

The Extra questions of §1.2 in the workbook.

Learning goals

• Give an example for several types of forces.
• What is the effect of balanced forces?
• What is the effect of unbalanced forces?