One mega watt is equivalent to ……… watt.
- If the work done in 9s is 63 J, the power is ……. .
- There are …….. W in 1 hp.
- 1 kW power is ……… than 1 hp.
- The unit watt is the same as …… .
- The unit one joule per second is equivalent to ……… .
- The mechanical advantage of a machine depends on the ………. present.
- Mechanical advantage is the ratio of the …… to the effort.
- The velocity ratio is usually much greater than ………. .
- If a machine is …….. the mechanical advantage will be equal to the velocity ratio.
26.The ability to retain the original form is called ……… .
- The ratio of the stress to the strain is ……… .
- A spring obeys ……… law.
- Newton’s first law gives the idea of ……… .
(2) By Newton’s second law , the acceleration is directly proportional to ……… .
(3) Newton’s third law express the idea of ………. .
(4) Action force and reaction force cannot ……… out each other.
(5) Force has both magnitude and ……. .
(6) Force is a ……… quantity.
(7) The SI unit for force is ……….. .
(8) Mass is a measure of ………. .
(9) The attracting force of the earth acting on a body is defined as ……… .
(10) Weight is a …….. quantity.
(11) One newton is equal to …….
