MEDIUM
Lower Secondary Stage 9
IMPORTANT
Earn 100

Give some disadvantages of burning coal.

Important Questions on Energy

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 11 - Energy>Exercise 1>Q 5
Coal is still the world's largest source of energy for producing electricity, despite its disadvantage. Why is this?
MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 11 - Energy>Exercise 1>Q 6
Describe all the energy transfer in a coal power plant.
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 11 - Energy>Exercise 2>Q 7
Nuclear power does not release greenhouse gases. Why is not used more?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 11 - Energy>Exercise 2>Q 8
Why have hydrogen cars not yet replaced petrol cars?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 11 - Energy>Exercise 3>Q 9
Many solar cells need to be connected together. Why do you think this is the case?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 11 - Energy>Exercise 3>Q 10
Why are solar cells not used in every part of the world?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 11 - Energy>Exercise 3>Q 11
Why are we using solar cells more than we did in the past?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 11 - Energy>Exercise 3>Q 12
Why should it be better to use wind and solar energy than to use coal energy?