JSS 1 Intermediate Science Flashcards: Meaning, Examples and Uses of Renewable and Non-Renewable Energy

Question 1

What is renewable energy?

Accepted Answer

energy from sources that are naturally replenished

Question 2

What is non-renewable energy?

Accepted Answer

energy from finite sources that are replaced very slowly

Question 3

Which source is renewable: sunlight, coal, crude oil, or natural gas?

Accepted Answer

sunlight

Question 4

Which source is non-renewable: coal, wind, sunlight, or flowing water?

Accepted Answer

coal

Question 5

A wind turbine converts wind energy mainly into ____ energy.

Accepted Answer

electrical

Question 6

Hydroelectric power uses the energy of ____ to generate electricity.

Accepted Answer

moving water

Question 7

Solar energy can be used directly to ____.

Accepted Answer

heat water

Question 8

Petrol and diesel are obtained mainly from ____.

Accepted Answer

crude oil

Question 9

Why are fossil fuels described as non-renewable?

Accepted Answer

They take millions of years to form and are used faster than they are replaced.

Question 10

One advantage of solar and wind energy during use is that they produce ____.

Accepted Answer

little or no air pollution

Question 11

One limitation of solar energy is that its supply ____.

Accepted Answer

depends on sunlight

Question 12

Burning fossil fuels excessively increases the release of ____.

Accepted Answer

carbon dioxide

Question 13

How can careless use of firewood harm the environment?

Accepted Answer

It can cause deforestation and soil erosion.

Question 14

Energy improves health care by powering ____.

Accepted Answer

medical equipment and vaccine refrigerators

Question 15

Energy supports technology by operating ____.

Accepted Answer

computers and communication devices

Question 16

Living organisms require energy for ____.

Accepted Answer

growth, movement, and other life processes

Question 17

Which action conserves electrical energy at home: switching off unused appliances, leaving lights on all day, opening a refrigerator repeatedly, or using damaged wiring?

Accepted Answer

switching off unused appliances

Question 18

The main reason for developing renewable energy is to ____.

Accepted Answer

provide sustainable energy with less environmental damage

Question 19

Which is NOT a renewable energy source: natural gas, solar radiation, wind, or flowing water?

Accepted Answer

natural gas

Question 20

A community with strong sunshine but no national-grid supply could most directly use ____ panels for electricity.

Accepted Answer

solar

Strong work.

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