wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Renewable Energy and Wind Turbines review for summative

Total questions: 24

Worksheet time: 12mins

Name
Class
Date
1.

What causes wind?

a)

Uneven heating of the earth’s surface

b)

Earth’s rotation

c)

Air moving from areas of high to low pressure

d)

All of the above

2.

Hot air...

a)

Moves to an area of high pressure

b)

Sinks

c)

Rises

d)

Rotates

3.

A generator...

a)

Converts mechanical energy into electrical energy

b)

Converts electrical energy into mechanical energy

c)

Spins turbines

d)

Increases turbine power

4.

The speed and direction of wind at a specific location

a)

Density

b)

Efficiency

c)

Velocity

d)

Airfoil

5.

At higher elevation, air density ...

a)

Increases

b)

Decreases

c)

Stays the same

6.

Which type of power is easiest to control to meet energy demand?

a)

geothermal

b)

Solar

c)

Wind

d)

fossil fuels

7.

The industrial revolution was sparked with the invention of this.

a)

wind turbines

b)

steam engine

c)

water mill

d)

airplane

8.

Angular velocity is how fast the blades are spinning while ______ is how hard the blades are spinning.

a)

axis of rotation

b)

air density

c)

torque

d)

tangential force

9.

A measure of force that causes an object to rotate around a fixed axis of rotation.

a)

angle of attack

b)

tangential force

c)

angular velocity

d)

torque

10.

Which of the following increases torque?

a)

applying force close to the axis of rotation

b)

applying force directly above the axis of rotation

c)

applying force farther from the axis of rotation

d)

decreasing lift while increasing drag

11.

curved aerodynamic shape of a blade element that increases lift force while decreasing drag

a)

chord

b)

airfoil

c)

span

d)

swept area

12.

The distance between the root and the tip of a blade

a)

axis of rotation

b)

airfoil

c)

chord

d)

span

13.

For every action there is an equal and opposite reaction.

a)

Newton's 1st law of motion

b)

Newton's 2nd law of mtion

c)

Newton's 3rd law of motion

d)

Newton's 1st law of thermodynamics

14.

The width of a blade element

a)

chord

b)

span

c)

root

d)

swept area

15.

Which of the following is produced at the same rate as we use it?

a)

coal

b)

nuclear power

c)

geothermal

d)

natural gas

16.

Which of the following is produced at a much slower rate than we use it?

a)

geothermal energy

b)

natural gas

c)

solar energy

d)

hydro power

17.

Splitting uranium atoms to generate steam to turn turbines that is converted into electrical energy

a)

geothermal energy

b)

burning fossil fuels

c)

nuclear power

d)

hydroelectric dam

18.

Harm to wildlife, noise pollution, high initial cost, and loss of energy as electricity travels are challenges of this type of power.

a)

solar

b)

wind

c)

geothermal

d)

nuclear

19.

PV cells use _______ to set up an electrical field that controls the movement of electrons.

a)

turbines

b)

semiconductors

c)

quartz

d)

plutonium

20.

This type of energy harnesses power from the earth's heat to heat water, and generate steam to turn turbines.

a)

fossil fuels

b)

solar

c)

hydroelectric

d)

geothermal

21.

all of the following are disadvantages of geothermal energy EXCEPT

a)

expensive to drill

b)

limited locations

c)

water pollution

d)

could trigger small earthquakes

22.

all of the following are disadvantages of nuclear power EXCEPT

a)

relies on non-renewable sources

b)

risk of nuclear meltdown

c)

carbon emissions

d)

radiactive waste

23.

Which of the following is effective at controlling nature to meet energy demands?

a)

solar panels

b)

hydroelectric dam

c)

wind turbines

d)

none of the above

24.

All of the following are challenges of solar energy EXCEPT...

a)

toxic byproducts from using quartz to make silicon

b)

making solar panels more efficient

c)

expensive

d)

increased electric bills