Annual Examinations For Secondary Schools Worksheets - Department For Curriculum Management And Elearning Page 9
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11(b)
At a height of 1.2 m above sea level, the fish falls back into the water.
(i)
What type of energy does the fish have when it is at this maximum height?
________________________________________________________________________________
(1)
(ii)
The weight of the fish is 5 N. Calculate the mass of the fish.
________________________________________________________________________________
(1)
2
(iii)
Calculate the amount of energy gained by the fish at this height. (g = 10m/s
)
________________________________________________________________________________
________________________________________________________________________________
(2)
(iv)
Assuming no energy losses, what is the amount of energy of the fish just before it
hits the surface of the water?
________________________________________________________________________________
(1)
(v)
Which law did you use to answer part b(iv) above?
________________________________________________________________________________
(1)
Physics – Secondary Schools – Track 2 – Form 3 – 2011
Page 9 of 11
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