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Lesson 9 — independent and dependent variables — 2F
Period 3
Magnetism
1 / 29
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variables
Middelbare school
havo, vwo
Leerjaar 2
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Items in this lesson
Period 3
Magnetism
Slide 1 - Slide
This lesson
Recap 7.3
7.4 Identifying and controlling variables
Working independently
Slide 2 - Slide
Learning goals
Explain the relationship between electricity and magnetism
Describe how to make an electro magnet
Describe the difference between an independent and dependent variable
Slide 3 - Slide
What have we learned about
Electromagnetism
Slide 4 - Slide
Current
Slide 5 - Slide
Current
The flow of electricity
Slide 6 - Slide
Electromagnetism
The flow of electricity creates a magnetic field
Slide 7 - Slide
Electromagnetism
Changing a magnetic field creates a flow of electricity
Slide 8 - Slide
Electromagnetism
The flow of electricity creates a magnetic field
Changing a magnetic field creates a flow of electricity
Slide 9 - Slide
Faradays law
The flow of electricity creates a magnetic field
Changing a magnetic field creates a flow of electricity
Slide 10 - Slide
Link
Slide 11 - Slide
Slide 12 - Video
The screwdriver rule
Slide 13 - Slide
Slide 14 - Slide
What you have to know
Current — the flow of electricity
Faradays law — current creates a magnetic field, changing a magnetic field creates current
The screwdriver rules
Slide 15 - Slide
An electromagnet
Slide 16 - Slide
Making an electro magnet
Solenoid
Core
Slide 17 - Slide
Slide 18 - Slide
Solenoid
Slide 19 - Slide
Electro magnet schematic
Slide 20 - Slide
Slide 21 - Video
Slide 22 - Slide
what you have to know
An electromagnet creates magnetism using faradays law
How to make an electromagnet (solenoid + core + power source)
The strength of an electromagnet depends on the current in the solenoid
Slide 23 - Slide
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
Slide 24 - Slide
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
Slide 25 - Slide
Slide 26 - Slide
Working independently
Homework
7.4 Yellow block exercises
7.4 — workbook exercises
Slide 27 - Slide
Next lesson
Homework check
Slide 28 - Slide
Learning goals
Explain the relationship between electricity and magnetism
Describe how to make an electro magnet
Describe the difference between an independent and dependent variable
Slide 29 - Slide
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