Read and download free pdf of CBSE Class 10 Physics Sources of Energy Worksheet Set B. Download printable Science Class 10 Worksheets in pdf format, CBSE Class 10 Science Chapter 14 Sources of Energy Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Science Class 10 Assignments and practice them daily to get better marks in tests and exams for Class 10. Free chapter wise worksheets with answers have been designed by Class 10 teachers as per latest examination pattern
Chapter 14 Sources of Energy Science Worksheet for Class 10
Class 10 Science students should refer to the following printable worksheet in Pdf in Class 10. This test paper with questions and solutions for Class 10 Science will be very useful for tests and exams and help you to score better marks
Class 10 Science Chapter 14 Sources of Energy Worksheet Pdf
Question. Which is the ultimate source of energy?
(a) Water
(b) Sun
(c) Uranium
(d) Fossil fuels
Answer : B
Question. Dead organisms are transformed into petroleum and natural gas in
(a) presence of air
(b) absence of air
(c) presence of sunlight
(d) none of the above
Answer : B
Question. Ocean thermal energy is due to
(a) energy stored by waves in the ocean
(b) temperature difference at different levels in the ocean
(c) pressure difference at different levels in the ocean
(d) tides arising out in the ocean
Answer : B
Question. Solar energy can be directly converted to elec-trical energy by which of the following de-vices?
(a) solar cooker
(b) solar heater
(c) solar cell
(d) solar geyser
Answer : C
Question. Which of the following problem is associated with a burning of coal?
(а) Carbon-dioxide emission
(b) acid rain
(c) ash with toxic metal supurity
(d) all of these.
Answer : D
Question. Select the important factor for the site selection of a thermal power plant.
(a) Distance from the populated area
(b) Availability of fuel
(c) Availability’ of water
(d) Cost of plant
Answer : C
Question. Hydropower plant are located in the
(a) desert area
(b) plane area
(c) hilly terrains
(d) none-of above
Answer : C
Question. Which element is used in solar cells?
(a) Carbon
(b) Silicon
(c) Phosphorous
(d) Sulphur
Answer : B
Question. Tidal energy is harnessed by constructing a dam across
(a) narrow opening to the sea
(b) wide opening to the sea
(c) the river in hilly trains
(d) the river in plane areas
Answer : A
Question. Spent slurry (Bio-waste after obtaining biogas) is used as
(a) fuel
(b) manure
(c) food for livestock
(d) used again for generating biogas
Answer : B
Question. What are the disadvantage of solar energy
(a) A large surface area is required collect the solar
(b) Daily average of solar energy varies from 4 to 7 kwh/m2
(c) Highly hazardous toxic material is used in the manufacturing of solar device.
(d) All of the above are disadvantages.
Answer : D
Question. Solar cells are made of
(a) germanium
(b) silicon
(c) silver
(d) aluminium
Answer : B
Question. The material used for interconnection the solar cells in the solar panel is
(a) silicon
(b) silver
(c) aluminium
(d) copper
Answer : B
Question. A solar panel is made by combining in an arrangement
(a) solar concentrator
(b) solar cookers
(c) solar cells
(d) solar chimney
Answer : C
Question. Which of the following is the ultimate source of energy?
(a) Water.
(b) Sun.
(c) Fossil fuels.
(d) Uranium
Answer : B
Question. Which of the following is more eco-friendly?
(a) Burning of coal.
(b) Burning of fire wood.
(c) Burning of charcoal.
(d) Burning of diesel
Answer : C
Very Short Answer Type Questions :
Question. A good fuel should possess .
Answer: both high calorific value and moderate ignition temperature
Question. The variety of coal which has the highest car-bon content
Answer: Anthracite
Question. Unit of calorific value of a substance is
Answer: J/kg
Question. How much land area is needed to establish a wind energy farm for generating 1 MW of electricity?
Answer: About 2 hectares of land.
Question. Define solar panel.
Answer: A group of solar cells arranged in a definite pattern is called a solar panel.
Question. Which gas is formed by decomposing plant and animal matter in masting areas?
Answer: Methane.
Question. Which country is known as ‘country of winds’?
Answer: Denmark.
Question. What is the voltage developed by a typical solar cell?
Answer: A voltage of about 0.5 V to 1 V is developed by a typical solar cell.
Short Answer Type Questions :
Question. Distinguish between renewable and non renewable source of energy.
Answer:Renewable energy sources are ones which don't run out - which can be renewed. We can keep using them and using them, and we'll never run out. Examples of renewable sources include wind, water power (hydroelectric), and solar power (light from the sun).
Non-renewable energy sources are ones which do run out. As we use them to generate energy, they get used up, and can't be used a second time. There are three main non-renewable energy sources, which are fast running out: coal, oil and natural gas.
Question. List any four characteristics of a good fuel.
Answer: Characteristics of a good fuel:
(i) It should possess low ignition temperature.
(ii) It should not leave residue after burning, i.e., it should burn completely.
(iii) It should be easily available and accessible
(iv) It should be easy to store and transport
Question. What are fossils? How are they formed?
Answer: Fossils are dead remains of animals and plants from remote past.
Fossils are formed when dead organisms are not completely decomposed. The organisms may get trapped in resins of tree, lava of volcanoes or hot mud, which when hardens retains the animal’s parts thus forming fossils.
Question. Suggest two ways to reduce energy consumption.
Answer: i. Fuel used for burning must be extinguished as soon as their use is over.
ii. Bulb, tubes, fans and other electrical appliances must be switched off as you leave your room.
Question. Can any source of energy be pollution free? Why or why not ?
Answer: No source of energy called pollution free, because the use of energy source of energy disturb the environment in one way or other. The actual source of energy may be pollution free but the assembly of device might have cause some damage to the environment.
Click below to download practice worksheet for CBSE Class 10 Physics Sources of Energy Worksheet Set B
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Chapter 14 Sources of Energy CBSE Class 10 Science Worksheet
The above practice worksheet for Chapter 14 Sources of Energy has been designed as per the current syllabus for Class 10 Science released by CBSE. Students studying in Class 10 can easily download in Pdf format and practice the questions and answers given in the above practice worksheet for Class 10 Science on a daily basis. All the latest practice worksheets with solutions have been developed for Science by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their examinations. Studiestoday is the best portal for Printable Worksheets for Class 10 Science students to get all the latest study material free of cost. Teachers of studiestoday have referred to the NCERT book for Class 10 Science to develop the Science Class 10 worksheet. After solving the questions given in the practice sheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 10 Science designed by our teachers. After solving these you should also refer to Class 10 Science MCQ Test for the same chapter. We have also provided a lot of other Worksheets for Class 10 Science which you can use to further make yourself better in Science.
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