Advertisements
Advertisements
Question
Name the physical quantity measured in terms of horse power.
Advertisements
Solution
Horse power, or H.P., is defined as "the ability of an agent to work 746 joules per second." Power is a physical quantity.
Relation: 1 H.P. = 746 W = 0.746 kw
APPEARS IN
RELATED QUESTIONS
Select the correct alternatives
A ball rolling on the ground possesses
Give one relevant example for the following transformations of energy:
Chemical energy to heat energy.
A boy of mass m climbs up a staircase of vertical height h.
(a) What is the work done by the boy against the force of gravity?
(b) What would have been the work done if he uses a lift in climbing the same vertical height?
How much electric power is generated in India using the wing energy?
MULTIPLE CHOICE TYPE:
The ultimate source of energy is:
(a) wood
(b) wind
(c) water
(d) sun
State the energy changes which take place when:
A body released from rest from the top of a building.
Give one example when:
Kinetic energy to potential energy.
A ball of mass 50 g falls from a height of 2m and rebounds from the ground to 1.6 m. Find:
(i) The potential energy possessed by the ball when initially at rest.
(ii) The kinetic energy of the ball before it hits the ground.
(iii) The final potential energy of the ball.
(iv) The loss in kinetic energy of the ball on collision. (Take: g = 10N kg−1)
Can you tell?
What are the various forms of energy?
