What is the first component needed to build a small dynamo on a bicycle?
How the small dynamo in a bicycle works

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Engineering, Architecture, Physics, Science
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1st - 9th Grade
•
Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A small cylinder
A large magnet
A battery
A solar panel
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the small dynamo generate electricity when the bicycle moves?
By using a battery
By turning a magnet inside a coil
By using solar energy
By using wind energy
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when the magnet turns inside the coil in a small dynamo?
The wheel deflates
Electric current is generated
The lamp turns off
The bicycle stops
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key difference between small and large dynamos?
Large dynamos are powered by batteries
Large dynamos use many great coils
Small dynamos use solar panels
Small dynamos are used in cars
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary use of large dynamos?
To power bicycles
To charge mobile phones
To light up cities
To run small appliances
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