Question

Q.4
(5)
2)
: Study the following activity and answer the
following question.
1)
Take two aluminium channels of different lengths.
Place the lower ends of the channels on the floor and
hold their upper ends at the same height.
3) Now take two balls of same size and weight and
release them from the top end of the channels. They
will roll down and cover the same distance.
Questions :-
1) At the moment of releasing the balls, which energy do
the balls have ?
2) As the balls roll down which energy is converted in to
which other form of energy.
3) Why do the balls cover the same distance on rolling
down ?
4) What is the form of the eventual total energy of the
balls ?
5) Which law related to the energy does the above activity
demonstrate ?​

Answer 1

Answer:

a) Kinetic energy

b) Kinetic energy is converted into potential energy

c) Because force = mass × acceleration

here both the balls have same mass and obtain same acceleration..so, both the balls have same force .. and if it has same force then they will cover same distance..

d) Kinetic energy and potential energy..

e) law of conservation of energy..