Lesson 8 — independent and dependent variables

• variables
• Middelbare school
• havo, vwo
• Leerjaar 2

Period 3

Magnetism

This lesson

Checking the homework

7.4 Identifying and controlling variables

Working independently

Learning goals

• Checking the homeowork
• Describe the difference between an independent and dependent variable

Checking the homework

7.1 — all exercises

7.2 — all exercises

7.3 — all exercises

7.4 — Yellow block exercises

Independent & dependent variables

step 1 — Working independently for 5 minutes

•  Read 7.4
• Write down your own explanation of dependent and independent variables

step 2 — Working together

•  Compare your answers to your neighbours

Independent variables

• This variables is controlled

•  This variable you make changes to

• Cause
  

• Controlled
  

Dependent variables 

• This variable is measured

• This variable reacts to the changes you make

• Effect
  

• Reacts
  

Working independently

Homework

7.4 — workbook exercises 

Learning goals

• Checking the homeowork
• Describe the difference between an independent and dependent variable

Recap

7.3 Electromagnets — Key words

• Electromagnetism
  

• Electric current
  

• Electro magnet

• Solenoid
  

• Core
  

• Permanent magnets

Electricity & magnetism

• Electric current
• Electromagnetism 

Link

Electromagnetism

• A change in electric current creates a magnetic field.

• A change in magnetic field creates an electric current.
  

An electromagnet

Making an electro magnet

• Solenoid
  
• Core
  

Solenoid

Electro magnet schematic