Worksheets95% Week 1 - Wind and Water, Sea and Sky
Total questions: 15
Worksheet time: 1hrs 15mins
What is the main topic of the passage "Wind and Water, Sea and Sky: Harnessing the Power of Fluids"?
The power of electricity
Harnessing the power of fluids
The history of trees
The movement of animals
According to the passage, what do both water and wind have in common?
They are both solids
They both show the nature and power of fluids
They both are used for cooking
They both are tightly connected particles
What does the passage suggest about the use of energy from fluids in history?
Humans have tried to harness it since early times
It was only discovered recently
It is not useful for work
It is only used for entertainment
What does the machinery attached to the windmill pole do?
Transfers energy
Stores water
Creates fire
Cools the air
What is the push and pull on electrons in close-by materials called?
Magnetic force
Electric current
Wind energy
Water pressure
Which materials have electrons that are closely held and not much affected by magnetic force?
Wood and stone
Copper and iron
Water and air
Plastic and glass
What do wind turbines capture to generate electricity?
The powerful motion of air
The heat from the sun
The flow of water
The movement of animals
What is the main similarity between water turbines in dams and wind turbines?
Both use magnetic force to convert motion into electricity
Both use solar energy
Both are powered by gasoline
Both are used only in cities
Where is most power from wind and water produced today?
On land
In the ocean
Underground
In space
Why are some materials, like copper, good for generating electricity?
They have loosely held electrons
They are very heavy
They are magnetic
They are expensive
What is the purpose of spinning a magnet around a coil of copper wire?
To release electrons and create an electrical current
To heat the wire
To make the wire stronger
To change the color of the wire
How did the use of water to generate electricity change by 1980?
25 percent of the world’s electricity came from water
Water was no longer used
Only small rivers were used
Water was used only for drinking
How do tidal stream turbines affect the environment?
They clean the ocean
They affect the natural flow of ocean tides
They increase fish population
They make water warmer
What natural events can damage wind turbines?
Earthquakes and volcanoes
Cyclones and hurricanes
Tornadoes and blizzards
Floods and droughts
Which of the following is NOT a challenge mentioned for wind and water power?
Drought
Hurricanes
Air pollution
Changes in ecosystems
