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WorksheetsBenchmark 4 Review
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What would happen if you increased the amplitude of a wave?
a)
The wave's frequency would decrease.
b)
The wave's frequency would also increase.
c)
The wave's energy would decrease.
d)
The wave's energy would also increase.
2.
Which of the following is the best example of heat transfer by convection?
a)
boiling water
b)
ironing a shirt
c)
the Sun warming the Earth
d)
cooking eggs on a pan
3.
The line running from the left end of the wave across to the right is called:
a)
resting point/line of origin
b)
crest
c)
wavelength
d)
amplitude
4.
Grass appears green because:
a)
green light is absorbed.
b)
green light is refracted.
c)
green light is scattered.
d)
green light is reflected.
5.
A rise in the temperature inside a kitchen means there is an increase in the __________.
a)
density of the air molecules
b)
number of air molecules
c)
average size of the air molecules
d)
kinetic energy of the air molecules
6.
The diagram shows a generator powered by windmills. Wind blows across the windmills to turn the blades of the turbine which spin the generators. What energy conversion takes place in the wind turbine generator?
a)
electrical energy is converted to mechanical energy
b)
solar energy is converted to thermal energy
c)
thermal energy is converted to electrical energy
d)
kinetic energy is converted to electrical energy
7.
What happens when parallel rays of light strike a rough or bumpy surface?
a)
They reflect off the surface.
b)
They scatter in different directions.
c)
They refract through the surface.
d)
They are absorbed.
8.
The law of refraction states that:
a)
light does not change
b)
as light enters a more dense medium, it slows down and bends toward the normal
c)
as light enters a more dense medium, it speeds up and bends toward the normal
d)
light reflects off of smooth surfaces
9.
A car battery allows an engine to crank. The engine then allows the car to move from one location to another. Trace the energy transformations shown in the diagram below.
a)
chemical → mechanical → electrical
b)
electrical → chemical → mechanical
c)
chemical → electrical → electrical
d)
chemical → electrical → mechanical
10.
Nuclear power produces energy without releasing greenhouse gases. While this helps the environment, nuclear power can be harmful. Which of the following is a harmful effect of nuclear power?
a)
Nuclear power releases carbon dioxide into the atmosphere.
b)
Nuclear power causes global temperatures to rise.
c)
Nuclear power produces high levels of air pollution.
d)
Nuclear power produces high levels of toxic waste.
11.
Sources that are used up more quickly than they can be replaced are called:
a)
nonrenewable
b)
renewable
c)
inexhaustible
d)
conservation
12.
What percentage of the energy sources used by Americans comes from fossil fuels?
a)
7%
b)
16%
c)
84%
d)
93%
13.
What is a disadvantage of using wind energy?
a)
Large areas of land are needed.
b)
The sun has to be shining to use it.
c)
It pollutes the air.
d)
None of these
14.
Geothermal energy can be used to generate electricity. This technology involves using heat from inside the earth to:
a)
make steam to drive generators in power plants.
b)
burn fuels used in power plants.
c)
heat coal used in the generation of electricity.
d)
None of these
15.
Based on the information in the table, which conclusion can be made about light trucks?
a)
They get more average miles per gallon than cars.
b)
They have become more popular than cars in recent years.
c)
They produce less nitrogen oxide and carbon dioxide emissions than cars.
d)
They have a greater negative impact on the environment than cars.
16.
Some electricity is made by damming rivers and using the water to push a turbine. What is a potential negative effect of this form of energy?
a)
It can cause the river to be heavily polluted.
b)
It can destroy the habitat of wildlife that live in the river.
c)
It can produce toxic waste that must be disposed of.
d)
It can consume too much water.
17.
Fossil fuels are the very old decaying remains of:
a)
renewable resources
b)
nonrenewable resources
c)
plants and animals
d)
coal and gas
18.
The three major fossil fuels are:
a)
garbage, animal waste, wood
b)
oil, crops, wind
c)
water, earth's heat, the sun
d)
oil/petroleum, natural gas, coal
19.
Which of the following can be used to generate electricity without pollution or toxic waste?
a)
uranium/nuclear power
b)
coal
c)
moving water
d)
natural gas
20.
Which of the following is a renewable source?
a)
natural gas
b)
biomass
c)
coal
d)
oil
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