EVERYDAY SCIENCE

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PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
True or false:when the distance an object moves is zero the work done on the object is also zero.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Class IX Science Work Done. • Work done on an object is defined as the magnitude of the force multiplied by the distance moved by the object in the direction of the applied force. Work done = force × distance. = F × s.

Detailed explanation-2: -Yes, energy is the ability to do work.

Detailed explanation-3: -Definition, The work done by a force is the product of the displacement and the component of the applied force of the object in the direction of displacement.

Detailed explanation-4: -Work is positive on the way up because force and displacement point in the same direction. On the way down work is negative due to force and displacement pointing in opposite directions (force up and displacement down). Work can be positive or negative.

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