A Level JC H2 Physics Worked Solutions Work, Energy Power Ep 1 [Questions]

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Work Energy and Power Ep 1 Questions

Hwa Chong Institution 2018 Prelim Paper 1 Q8
Victoria Junior College 2018 Prelim Paper 1 Q5
Raffles Institution 2018 Prelim Paper 1 Q8

Work Energy Power Ep 1 - A Level JC H2 Physics

Hwa Chong Institution 2018 Prelim Paper 1 Q8

Hwa Chong Institution 2018 Prelim Paper 1 Q8

Victoria Junior College 2018 Prelim Paper 1 Q5

Victoria Junior College 2018 Prelim Paper 1 Q5

Raffles Institution 2018 Prelim Paper 1 Q8

Raffles Institution 2018 Prelim Paper 1 Q8
In the first question, we have a force F applied to a trolley for a distance x. The kinetic energy changes from 2J to 6J. If a 2F force is applied for a distance of 2x instead, find the final KE if the original KE is 2J.

In the second question, a crate is pulled from rest with a constant force of 320N. Find the final speed if at first the floor is frictionless, then a friction force of 30N applies.

In the third question, if it takes 4J of work to stretch a spring by 10cm, use Hooke’s Law to find the additional work done to stretch it by a further 10cm..

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