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Lesson 11 — 7.4 + 7.5
Period 3
Magnetism
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Period 3
Magnetism
Slide 1 - Tekstslide
This lesson
Checking the homework
7.4 Independent variables and dependent variables
working independently
Slide 2 - Tekstslide
Learning goals
Explain what is meant by independent and dependent variables
Start studying for the test week
Slide 3 - Tekstslide
Checking the homework
Slide 4 - Tekstslide
7.3 — Exercise 1
a. False – they have a different shape
b. False – aluminium is not magnetic
c. True
d. True
e. False — it will pick up more paper clips
f. False — Electromagnets are stronger
Slide 5 - Tekstslide
7.3 — Exercise 2
a. —
b. The compass needles would turn the other way because the magnetic field gets reversed.
Slide 6 - Tekstslide
7.3 — Exercise 3
a. Use the battery as a power source, make a coil out of the copper wire and place the iron name in the center of the coil as it's core
Slide 7 - Tekstslide
Electro magnet schematic
Slide 8 - Tekstslide
7.3 — Exercise 3
b. No, because both steel and iron are magnetic
Slide 9 - Tekstslide
Independent and dependent variables
Slide 10 - Tekstslide
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 11 - Tekstslide
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 12 - Tekstslide
Slide 13 - Tekstslide
Working independently
The learning material for the test week:
7.1 — 7.4
Slide 14 - Tekstslide
Learning goals
Explain what is meant by independent and dependent variables
Start studying for the test week
Slide 15 - Tekstslide
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