#9 Magnetism, Motors and Generators
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Last updated over 4 years ago
12 questions
10
What is a magnet?
What is a magnet?
10
What is the relationship between magnets and electricity?
What is the relationship between magnets and electricity?
5
Which of the following creates a magnetic field?
Which of the following creates a magnetic field?
10
What is created when a current is run through a coil of wire wrapped around an iron core? (type one word only)
What is created when a current is run through a coil of wire wrapped around an iron core? (type one word only)
5
An electric motor spins because:
An electric motor spins because:
5
Electromagnetic induction occurs when:
Electromagnetic induction occurs when:
5
A current can be induced to flow in a coil in all of the following situations EXCEPT:
A current can be induced to flow in a coil in all of the following situations EXCEPT:
10
Explain the difference between a motor and a generator?
Explain the difference between a motor and a generator?
5
How does a step-up transformer work?
How does a step-up transformer work?
10
Watch this video: https://www.youtube.com/watch?v=cYkzH90-gj8&t=40s and then explain how a wind turbine generates electricity.
Watch this video: https://www.youtube.com/watch?v=cYkzH90-gj8&t=40s and then explain how a wind turbine generates electricity.
10
According to this article, what are some challenges around windpower?
https://science.howstuffworks.com/environmental/energy/why-cant-we-generate-all-our-energy-from-wind-power.htm
According to this article, what are some challenges around windpower?
https://science.howstuffworks.com/environmental/energy/why-cant-we-generate-all-our-energy-from-wind-power.htm
15
Why can't we generate all the electricity we need from the wind?
https://science.howstuffworks.com/environmental/energy/why-cant-we-generate-all-our-energy-from-wind-power.htm
Why can't we generate all the electricity we need from the wind?
https://science.howstuffworks.com/environmental/energy/why-cant-we-generate-all-our-energy-from-wind-power.htm