MEDIUM
10th CBSE
IMPORTANT
Earn 100

What are the advantages and disadvantages of using a solar cooker? Are there places where solar cookers would have limited utility?

Important Questions on Sources of Energy

MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 5 - Sources of Energy>MOCK TEST QUESTION PAPER>Q 16
What are the environmental consequences of the increasing demand for energy? What steps would you suggest to reduce energy consumption?
MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 5 - Sources of Energy>MOCK TEST QUESTION PAPER>Q 17

Describe the steps involved in obtaining biogas and explain what is meant by anaerobic decomposition.
 

MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 5 - Sources of Energy>MOCK TEST QUESTION PAPER>Q 17
Which isotope of uranium can undergo fission readily?
EASY
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 5 - Sources of Energy>MOCK TEST QUESTION PAPER>Q 18

Name the gases commonly present in biogas.

MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 5 - Sources of Energy>MOCK TEST QUESTION PAPER>Q 18
List two advantages of using biogas over firewood.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 5 - Sources of Energy>MOCK TEST QUESTION PAPER>Q 19
What are fossil fuels? Write two disadvantages of burning fossil fuels.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 5 - Sources of Energy>MOCK TEST QUESTION PAPER>Q 20
What happens when wood is burnt in a limited supply of oxygen? Name the residue left behind after the reaction and state two advantages of using this residue as a fuel over wood.
MEDIUM
10th CBSE
IMPORTANT
SCIENCE PHYSICS>Chapter 5 - Sources of Energy>MOCK TEST QUESTION PAPER>Q 21
Write two different ways of harnessing energy from ocean.