What is the primary function of modern wind turbines compared to old windmills?

Harnessing Wind Energy: From Old Windmills to Modern Turbines

Interactive Video
•
Physics, Science, Geography
•
6th - 8th Grade
•
Hard

Patricia Brown
FREE Resource
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To pump water for cattle
To generate electricity
To grind grain
To provide shade
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main similarity between old windmills and modern wind turbines?
Both are used for grinding grain
Both capture the wind's energy
Both are made of wood
Both are used in urban areas
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the shape of a wind turbine blade help it to spin?
It is flat and wide
It is heavy and solid
It is shaped like a propeller
It creates uneven air pressure
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does the weather vane play in a wind turbine?
It keeps the turbine facing the wind
It measures wind speed
It generates electricity
It decorates the turbine
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is the rotor shaft's speed increased in a wind turbine?
To generate more electricity
To cool the turbine
To reduce noise
To slow down the blades
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the gears in a wind turbine?
To reduce the size of the turbine
To stabilize the turbine
To change the direction of the blades
To increase the rotation speed
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are wind turbines built to be very tall?
To reduce construction costs
To look impressive
To capture more wind
To avoid obstacles
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many homes can a small wind farm in Wyoming power?
More than 9,000 homes
Less than 500 homes
About 1,000 homes
Exactly 5,000 homes
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