Renewable Energy Exam Practice

In the 21st Century, what is the main energy source used around the world?

• solar power

• hydropower

• wind power

• fossil fuels

Which of these words mean that something will never run out or go empty?

• intermittent

• inexhaustible

• universal

• inefficient

Fill in the blank for these sentences:

Solar power is _________; if there is no sunlight, there is no power.

Wind power is also ________; if the wind is not blowing, there is no power

• universal

• continuous

• intermittent

• concentrated

Which disadvantage of solar power does this sentence describe?

Since sunlight is weak and not concentrated, many solar panels are needed to capture enough usable energy.

• sunlight is dilute

• sunlight is continuous

• sunlight is universal

• sunlight is intermittent

What do the mirrors used in Concentrated Solar-Thermal Power do to the sunlight?

• they make the sunlight more flexible

• they make the sunlight more dilute

• they make the sunlight more concentrated; stronger

What does universal mean?

• available everywhere

• concentrated; strong

• large

• efficient

Which of these power sources is not universal?

• biomass

• solar

• wind

• geothermal

Select all the power sources that use steam in the process of making electricty:

• nuclear power

• Photovoltaic Solar Power (using solar panels)

• biomass power

• wind power

• hydropower

Reorder the following

• the turbine spins a generator, which produces electricity

• to convert water into steam

• the steam then rotates a turbine

• Geothermal power uses heat

• from under the ground

According to our reading, which power source did Conca (2012) identify as being the safest energy source? 

• coal

• nuclear power

• solar power

• hydropower