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ICSE Class 10 Physics Question 5 of 27

Solved 2023 Question Paper ICSE Class 10 Physics — Question 19

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19
Question

Question 2(iv)

(a) What should be the angle between the direction of force and the direction of displacement, for work to be negative?

(b) Name the physical quantity obtained using the formula Uh\dfrac{\text{U}}{\text{h}}, where U is the potential energy and h is the height.

Answer

(a) 180°

(b) As gravitational potential energy [U] = mgh

Hence, Uh\dfrac{U}{h} = mg

Therefore, the physical quantity obtained is weight of the object.