मराठी
सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Write True Or False One Form of Energy Cannot Be Converted into Another Form.

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प्रश्न

Write true or false of the following statement.

One form of energy cannot be converted into another form.

पर्याय

  • True

  • False

MCQ
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उत्तर

False.

One form of energy can be converted into the other form.

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पाठ 3: Energy - Objective Questions

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एस.एस. शोम Concise Physics [English] Class 7 ICSE
पाठ 3 Energy
Objective Questions | Q 1.5

संबंधित प्रश्‍न

Write true or false of the following statement.

In an electric fan, electrical energy changes into the mechanical energy.


State two factors on which the potential energy of a body at a certain height above the ground depends.


How many joules are there in one kilowatt-hour?


What is the common name of '1 kWh' of electrical energy?


A certain household consumes 650 units of electricity in a month. How much is this electricity in joules?


Study the following activity and answer the questions.
  1. Take two aluminium channels of different lengths.
  2. Place the lower ends of the channels on the floor and hold their upper ends at the same height.
  3. Now take two balls of the same size and weight and release them from the top end of the channels. They will roll down and cover the same distance.
Questions:
  1. At the moment of releasing the balls, which energy do the balls have?
  2. As the balls roll down which energy is converted into which other form of energy?
  3. Why do the balls cover the same distance on rolling down?
    Note: The question is wrong. It should be "Why do the balls cover the same distance after rolling down"?
  4. What is the form of the eventual total energy of the balls?
  5. Which law related to energy does the above activity demonstrate? Explain.

Can you tell?

When can we say that displacement has taken place?


Running water possesses ______.


Which one of the following is not the unit of energy?


The weight of a person on planet A is about half that on the earth. He can jump up to 0.4 m in height on the surface of the earth. How high he can jump on planet A?


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