How the small dynamo in a bicycle works

How the small dynamo in a bicycle works

Assessment

Interactive Video

Engineering, Architecture, Physics, Science

1st - 9th Grade

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial explains how small dynamos generate electricity using a bicycle. It describes the construction of a small dynamo, involving a cylinder, a U-shaped magnet, and a coil. The demonstration shows how the movement of the bicycle wheel generates electricity, lighting a lamp. The video also compares small dynamos to large ones used in cities, highlighting the differences in their construction and application.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

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