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Electromagnets OALH
By David Spratt
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Last updated about 5 years ago
33 questions
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Do Now
Question 1
1.
1.How does a compass work for navigation?
Question 2
2.
2. What direction do the magnetic field lines go when drawn around a magnet?
North to South
South to North
East to west
West to East
Question 3
3.
3. Define a permanent magnet.
Question 4
4.
4. Describe a method for plotting the magnetic field lines around a magnet.
Question 5
5.
5. Convert the following number to standard form - 1240000.
Question 6
6.
Describe the factors that could effect reaction time (3).
Key Knowledge - LCWC
Question 7
7.
What happens when a current flows in a conducting wire?
Question 8
8.
What does theright hand grip rule shows us for a wire?
Question 9
9.
What is a solenoid?
Question 10
10.
What does theright hand grip rule shows us for a solenoid?
Question 11
11.
What is an electromagnet?
Question 12
12.
How can we increase the strength of an electromagnet?
Question 13
13.
What happens when a current flows in a conducting wire?
Question 14
14.
What does theright hand grip rule shows us for a wire?
Question 15
15.
What is a solenoid?
Question 16
16.
What does theright hand grip rule shows us for a solenoid?
Question 17
17.
What is an electromagnet?
Question 18
18.
How can we increase the strength of an electromagnet?
Recall Quiz
Question 19
19.
Choose the correct diagram:
1.
2.
3.
Question 20
20.
Choose the correct diagram:
1.
2.
Question 21
21.
Choose the electromagnet that will pick up the most paper clips:
1.
2.
3.
4.
Question 22
22.
I can increase the strength of an electromagnet by...
1.
Increasing the current, increasing the number of coils and removing the iron core
2.
Increasing the current, adding an iron core and reducing the number of coils
3.
Increasing the current, adding an iron core and increasing the number of coils.
Independent Practise
Question 23
23.
1. Suggest three factors that affect the strength of the magnetic field around an electromagnet.
Question 24
24.
2. Describe how increasing the number of coils on a solenoid affects the strength of the magnetic field around the wire.
Question 25
25.
3. Explain how to work out the direction of a magnetic field around a straight wire.
Question 26
26.
4. Explain how to work out the direction of a magnetic field around a solenoid.
Question 27
27.
5. Draw an example of the magnetic field around a solenoid. Label clearly the flow of current and the direction of the magnetic field using arrows.
visibility
View drawing
Plenary
Question 28
28.
1. What happens when a current flows in a conducting wire?
Question 29
29.
2. What does theright hand grip rule shows us for a wire?
Question 30
30.
3. What is a solenoid?
Question 31
31.
4. What does theright hand grip rule shows us for a solenoid?
Question 32
32.
5. . What is an electromagnet?
Question 33
33.
6. How can we increase the strength of an electromagnet?