Class 9 Exam > Class 9 Questions > Match the following with correct response.(1)...
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Match the following with correct response.
(1) Kinetic energy
(2) Potential energy
(3) Work
(4) Power
(A) Energy due to position
(B) The rate of doing work
(C) Force displaces an object in the direction of force
(D) Energy due to motion
(1) Kinetic energy
(2) Potential energy
(3) Work
(4) Power
(A) Energy due to position
(B) The rate of doing work
(C) Force displaces an object in the direction of force
(D) Energy due to motion
- a)1-A, 2-C, 3-B, 4-D
- b)1-D, 2-A, 3-C, 4-B
- c)1-C, 2-B, 3-D, 4-A
- d)1-B, 2-D, 3-A, 4-C
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Match the following with correct response.(1) Kinetic energy(2) Potent...
Explanation:
The correct match for each term is as follows:
1) Kinetic energy - D. Energy due to motion
2) Potential energy - A. Energy due to position
3) Work - C. Force displaces an object in the direction of force
4) Power - B. The rate of doing work
Explanation of each term:
1) Kinetic Energy:
- Kinetic energy is the energy possessed by an object due to its motion.
- It depends on the mass and velocity of the object.
- The formula for kinetic energy is KE = 1/2 * m * v^2, where KE is the kinetic energy, m is the mass, and v is the velocity.
2) Potential Energy:
- Potential energy is the energy possessed by an object due to its position or state.
- It can be gravitational potential energy, elastic potential energy, or chemical potential energy.
- Gravitational potential energy depends on the height and mass of an object, and the formula is PE = m * g * h, where PE is the potential energy, m is the mass, g is the acceleration due to gravity, and h is the height.
3) Work:
- Work is done when a force is applied to an object and it displaces in the direction of the force.
- Work is calculated as the product of force and displacement, W = F * d, where W is the work done, F is the force applied, and d is the displacement.
4) Power:
- Power is the rate at which work is done or energy is transferred.
- It is calculated as the work done divided by the time taken, P = W / t, where P is the power, W is the work done, and t is the time taken.
Matching the terms:
- Kinetic energy matches with D because it is the energy due to motion.
- Potential energy matches with A because it is the energy due to position.
- Work matches with C because it involves the displacement of an object in the direction of the force applied.
- Power matches with B because it is the rate at which work is done.
Therefore, the correct match is option B: 1-D, 2-A, 3-C, 4-B.
The correct match for each term is as follows:
1) Kinetic energy - D. Energy due to motion
2) Potential energy - A. Energy due to position
3) Work - C. Force displaces an object in the direction of force
4) Power - B. The rate of doing work
Explanation of each term:
1) Kinetic Energy:
- Kinetic energy is the energy possessed by an object due to its motion.
- It depends on the mass and velocity of the object.
- The formula for kinetic energy is KE = 1/2 * m * v^2, where KE is the kinetic energy, m is the mass, and v is the velocity.
2) Potential Energy:
- Potential energy is the energy possessed by an object due to its position or state.
- It can be gravitational potential energy, elastic potential energy, or chemical potential energy.
- Gravitational potential energy depends on the height and mass of an object, and the formula is PE = m * g * h, where PE is the potential energy, m is the mass, g is the acceleration due to gravity, and h is the height.
3) Work:
- Work is done when a force is applied to an object and it displaces in the direction of the force.
- Work is calculated as the product of force and displacement, W = F * d, where W is the work done, F is the force applied, and d is the displacement.
4) Power:
- Power is the rate at which work is done or energy is transferred.
- It is calculated as the work done divided by the time taken, P = W / t, where P is the power, W is the work done, and t is the time taken.
Matching the terms:
- Kinetic energy matches with D because it is the energy due to motion.
- Potential energy matches with A because it is the energy due to position.
- Work matches with C because it involves the displacement of an object in the direction of the force applied.
- Power matches with B because it is the rate at which work is done.
Therefore, the correct match is option B: 1-D, 2-A, 3-C, 4-B.
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Match the following with correct response.(1) Kinetic energy(2) Potent...
B is correct
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