Work and energy quiz 1
If a body does work to left a wight to height of 10 meter then at maximum height the work would equal numerically to
A) potential energy
B) kinetic energy
C)mechanical energy
A) and b)
A) and c)
B) and c )
From the previous example at the height of 5 meter mechanical energy =
0%
0
0%
0
What will happen to the kinetic energy if the velocity is doupled
Increase four times
Decrease four times
Decrease four times
If a body falls from the top of the building and ( d ) is the distance from the top of the mountain then as ( d ) increases what happen to the potential energy
Decrease
Increase
If two boxes A and B mass of box A is double the mass of box B and height of box A is double the height of box B then the ratio between potential energy of A to that of B
4 : 1
1 : 4
2: 1
1 : 2
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