Class 5 Exam > Class 5 Questions > Choose the correct statement:a)Energy is the ...
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Choose the correct statement:
- a)Energy is the ability to do work and is used in order to perform work
- b)Energy is the rate at which work is done
- c)There are various units of energy, work and energy
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
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Choose the correct statement:a)Energy is the ability to do work and is...
Explanation:
Energy is a fundamental concept in physics and is closely related to the concept of work. Let's break down each statement to understand why option D is the correct answer.
A: Energy is the ability to do work and is used in order to perform work:
- Energy is defined as the capacity or ability to do work. It is required to perform any kind of work.
- Work, on the other hand, is the transfer of energy from one system to another or the change in energy of a system.
B: Energy is the rate at which work is done:
- This statement is not entirely accurate. Energy is not the rate at which work is done, but rather the ability or capacity to do work.
- However, work is indeed related to energy, as it is the transfer of energy or the change in energy of a system.
C: There are various units of energy, work, and energy:
- This statement is true. Energy, work, and power (which is the rate at which work is done) have different units of measurement.
- Energy can be measured in joules (J), work is also measured in joules (J), and power is measured in watts (W).
D: All of the above:
- This option is the correct answer because all three statements (A, B, and C) are true.
- Energy is the ability to do work, work is related to energy, and there are various units of measurement for energy, work, and power.
In conclusion, the correct statement is option D: All of the above.
Energy is a fundamental concept in physics and is closely related to the concept of work. Let's break down each statement to understand why option D is the correct answer.
A: Energy is the ability to do work and is used in order to perform work:
- Energy is defined as the capacity or ability to do work. It is required to perform any kind of work.
- Work, on the other hand, is the transfer of energy from one system to another or the change in energy of a system.
B: Energy is the rate at which work is done:
- This statement is not entirely accurate. Energy is not the rate at which work is done, but rather the ability or capacity to do work.
- However, work is indeed related to energy, as it is the transfer of energy or the change in energy of a system.
C: There are various units of energy, work, and energy:
- This statement is true. Energy, work, and power (which is the rate at which work is done) have different units of measurement.
- Energy can be measured in joules (J), work is also measured in joules (J), and power is measured in watts (W).
D: All of the above:
- This option is the correct answer because all three statements (A, B, and C) are true.
- Energy is the ability to do work, work is related to energy, and there are various units of measurement for energy, work, and power.
In conclusion, the correct statement is option D: All of the above.
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Choose the correct statement:a)Energy is the ability to do work and is used in order to perform workb)Energy is the rate at which work is donec)There are various units of energy, work and energyd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?
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