Class 6 General Science Notes: - Unit-8: Energy: Solved Exercise (MCQs)

A. MCQs (Choose the Correct Answers).

1. Which of the following is a non-renewable resource?

a. Wind
b. Water
c. Wildlife
d. Natural gas

... Answer is d. Natural gas
-----------------------

2. Rida lit a matchstick, what form of energy did she use?

a. Electrical
b. Chemical
c. Elastic
d. Light

... Answer is b. Chemical
--------------------------

3. Kamran is sitting motionless on a chair; his kinetic energy is

a. Maximum
b. Minimum
c. Zero
d. Twice

... Answer is c. Zero
-------------------------

4. When ice cream is melting down, what type of energy is melting it?

a. Electrical
b. Thermal
c. Chemical
d. Light

... Answer is b. Thermal
------------------------

5. The energy used to cook food in a microwave oven is a form of

a. Electrical energy
b. Thermal energy
c. Elastic energy
d. Light

... Answer is a. Electrical energy
----------------------

6. Which of the following energy conversions in a battery-operated flashlight?

a. Electrical → Mechanical → Light
b. Chemical → Mechanical → Light
c. Chemical → Electrical → Light
d. Thermal → Electrical → Light

... Answer is c. Chemical → Electrical → Light
------------------------

7. Fossils fuel is regarded as an energy resource which is :

a. Renewable
b. Non renewable
c. Generating
d. Producing

... Answer is b. Non renewable
--------------------

8. If you are using biomass as a source of energy you might be heating with

a. Coal
b. Natural gas
c. Petroleum
d. Wood

... Answer is d. Wood
---------------

9. Of the following choices, which best describes or defines electrical energy?

a. Moving charges
b. Moving water
c. Electric meter
d. Light source

... Answer is a. Moving charges
------------------------

10. Which of the following has nothing to do with hydropower?

a. Burning
b. Gravity
c. Sun
d. Water cycle

... Answer is a. Burning
----------------