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Wind power

Total questions: 8

Worksheet time: 4mins

Name
Class
Date
1.

Which country produces the most power with wind sites ?

a)

United States.

b)

Germany.

c)

China.

d)

Netherlands.

2.

Wind energy is a renewable source of energy.

a)

True.

b)

False.

3.

Which of these is not a part of a modern wind turbine ?

a)

A gearbox.

b)

A nacelle.

c)

A compressor.

4.

Who invented the first electricity-generating wind turbine ?

a)

The French engineer Georges J. M. Darrieus.

b)

The American inventor Benjamin Franklin.

c)

The American inventor Charles F. Bush.

d)

The Scottish engineer James Blyth.

5.

How many blades does a modern wind turbine have ?

a)

Four blades.

b)

Three blades.

c)

One blade.

d)

Ten blades.

6.

Wind energy is the most expensive energy in the world.  

a)

True.

b)

False.

7.

How do wind turbines affect the environment ?

a)

It cuts the clouds. This affects the water cycle.

b)

Birds and bats may be injured.

c)

The wind turbines emit carbon dioxide.

8.

By what part do you increase the speed by a factor 100 ?

a)

A gearbox.

b)

A nacelle.

c)

A compressor.