Welcome to your work , Energy & power - 5
1.
A body moving in a circular path with constant speed has power
2.
Electrical power consumed is measured in
3.
One kilowatt-hour equals
4.
Thunderstorm energy is about
5.
According to E = mc², energy released depends mainly on
6.
Most fundamental conservation law here is
7.
Jet aircraft kinetic energy is about
8.
Flea hop energy is about
11.
In presence of friction, which energy is conserved?
12.
In a chemical reaction, the mass defect is
13.
A machine does same work in half time. Power becomes
14.
Large power plant annual output is about
15.
Energy of an electron in atom is about
16.
Horsepower is related to watt as
17.
Power becomes zero when
18.
Annual global human energy use is about
19.
Turning this page involves energy of order
20.
Energy to break one DNA bond is of order
21.
Which is NOT a unit of energy?
22.
Daily food intake energy of a human is about
23.
Typical nuclear energy is about
24.
The unit used in electricity bills measures
25.
In an isolated system, which quantity remains constant?
26.
A 1000 W bulb used for 1 hour consumes
27.
A lift moving upward at constant speed has acceleration
28.
Neuron discharge energy is of order
29.
A body moving at constant speed under friction has power
30.
Energy released in nuclear reactions is much higher because
32.
A force acts perpendicular to velocity. Instantaneous power is
33.
Instantaneous power is given by
34.
Burning 1000 kg coal releases ~
35.
Electric bills are charged in
36.
Energy from 1 litre petrol is ~
37.
Energy released in a supernova is about
38.
Which conversion occurs in nuclear power plants?
39.
Mass–energy equivalence shows that
40.
Energy equivalent of 1 kg mass is closest to
41.
Law of conservation of energy states that
42.
A motor lifts load vertically. Power required depends on
43.
Average power depends on
45.
Mechanical energy is not conserved when
