Which of the following is due to position or state of strain?
Kinetic energy
Potential energy
Mechanical energy
Electrical energy
Unit of power is
Watt
Joule
Newton
Pascal
Which one of these objects posses kinetic energy?
A moving bullet
Blowing wind
A rolling stone
All the above
By what factor does the kinetic energy of a particle increase if the velocity is increased by a factor of three?
6
7
8
9
A compressed spring possesses
Elastic potential energy
Magnetic energy
At the start of a freely falling object its kinetic energy is zero. Why ?
Because its velocity is zero
Because mass has no effect at that height
The body is at a height
Which one of these physicists is from Britain?
Thomas Alva Edison
James Prescott Joule
C.V.Raman
None of these
'Stone at a height'- which type of energy is related to this situation?
1 watt =
10 J S-1
1 J S-1
0.1 J S-1
100 J S-1
What is the commercial units of energy ?
Joules
W
K W h
None of these.
