Lakhmir Singh & Manjit Kaur - Physics

Book: Lakhmir Singh & Manjit Kaur - Physics

Chapter: 3. Sources of Energy

Subject: Physics - Class 10th

Q. No. 6 of Very Short Answer Type Questions-Pg-140

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6

Write one use of wind energy

(a) In the past


(b) At present.

a) In the past wind energy was used in the flour mills.

b) In the present days wind energy is mainly used for generating the electricity through wind-powered generators.


Chapter Exercises

Very Short Answer Type Questions-Pg-121
Very Short Answer Type Questions-Pg-130
Very Short Answer Type Questions-Pg-140
Very Short Answer Type Questions-Pg-148
Very Short Answer Type Questions-Pg-156
Very Short Answer Type Questions-Pg-161
Short Answer Type Questions-Pg-122
Short Answer Type Questions-Pg-131
Short Answer Type Questions-Pg-140
Short Answer Type Questions-Pg-148
Short Answer Type Questions-Pg-157
Short Answer Type Questions-Pg-161
Questions Based on High Order Thinking Skills (HOTS)-Pg-123
Questions Based on High Order Thinking Skills (HOTS)-Pg-132
Questions Based on High Order Thinking Skills (HOTS)-Pg-142
Questions Based on High Order Thinking Skills (HOTS)-Pg-150
Questions Based on High Order Thinking Skills (HOTS)-Pg-159
Long Answer Type Questions-Pg-122
Long Answer Type Questions-Pg-131
Long Answer Type Questions-Pg-141
Long Answer Type Questions-Pg-149
Long Answer Type Questions-Pg-157
Multiple Choice Questions (MCQs)-Pg-122
Multiple Choice Questions (MCQs)-Pg-131
Multiple Choice Questions (MCQs)-Pg-141
Multiple Choice Questions (MCQs)-Pg-149
Multiple Choice Questions (MCQs)-Pg-158
Multiple Choice Questions (MCQs)-Pg-161

More Exercise Questions

1

A hydro-power plant converts one from of energy into another. Name the two forms of energy.
2

What type of energy is possessed by flowing water?
3

Flowing water can rotate a turbine. Which type of energy is used up by the turbine?
4

Name the original source of wind energy.
5

What should be the minimum wind speed for the satisfactory working of a wind- powered electric generator?
6

Write one use of wind energy

(a) In the past


(b) At present.
7

Why is the copper tube of a solar water heater painted black from outside?
8

What type of reactions occurring inside the sun produces solar energy?
9

Name some of the solar energy devices.
10

What type of reflector is used in a box-type solar cooker?
11

What is the range of temperature which can be achieved in a box-type solarcooker in two to three hours?
12

Name the devices which converts sunlight into electricity.
13

How much solar energy will be received by 1 m2 area in one hour if the solar constant be 1.4 kW/m2?
14

Fill in the following blanks with suitable words :

A solar cell converts …………………. energy into …………………. energy.

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