The unit of power in the the Mks system is.
Joule.
Erg.
Newton.
Watt.
An object of mass 15 kg is moving with a uniform velocity of 4m/s. What is the kinetic energy possessed by the object.
120J.
100J.
220J.
200J.
W = F x _______________.
Momentum (p)
Acceleration(a).
Displacement (s).
Velocity(v).
A bullet of mass 0.2kg is fired with a velocity of 100ms-1 .What is the kinetic energy?
10000J
1000J
10000erg
1000erg
What is the work done by a man in carrying a stone of mass 25kg in his head when he travels a distance of 15m in the vertical direction?
3600J
3675J
375J
3075J
A compressed spring possesses ___________ energy.
Kinetic.
Elastic potential.
Electric.
Magnetic.
Find the energy possessed by an object of mass 10 kg when it is at a height of 6 m above the ground.Given, g = 9.8 m/s2
858 J
688 J
588 J
600 J
The capacity for doing work is called _______________.
Work.
Power.
Energy.
Force.
A compressed spring possesses _________ energy.
Kinetic
Elastic potential
Electric
Magnetic
An engine of 9.8 kw power is to pump water from a well of 90m depth. Calculate the quantity of water it can pump out in one hour?
40,000g.
4000kg.
4000g.
40,000kg.