Welcome to your work , Energy & power - 5
1.
Energy released in a supernova is about
2.
Annual global human energy use is about
3.
Average power depends on
4.
Large power plant annual output is about
5.
Mechanical energy is not conserved when
6.
Energy released in nuclear reactions is much higher because
7.
Flea hop energy is about
8.
Energy to break one DNA bond is of order
9.
According to E = mc², energy released depends mainly on
10.
Neuron discharge energy is of order
11.
Which is NOT a unit of energy?
12.
A body moving in a circular path with constant speed has power
13.
A force acts perpendicular to velocity. Instantaneous power is
14.
Typical nuclear energy is about
15.
Burning 1000 kg coal releases ~
16.
A machine does same work in half time. Power becomes
17.
Instantaneous power is given by
18.
In presence of friction, which energy is conserved?
20.
The unit used in electricity bills measures
21.
A lift moving upward at constant speed has acceleration
22.
Daily food intake energy of a human is about
23.
Energy of an electron in atom is about
24.
Thunderstorm energy is about
25.
Electrical power consumed is measured in
26.
Most fundamental conservation law here is
27.
Horsepower is related to watt as
29.
Electric bills are charged in
32.
Law of conservation of energy states that
33.
A motor lifts load vertically. Power required depends on
34.
Which conversion occurs in nuclear power plants?
35.
Energy equivalent of 1 kg mass is closest to
36.
In a chemical reaction, the mass defect is
37.
Jet aircraft kinetic energy is about
38.
A body moving at constant speed under friction has power
39.
One kilowatt-hour equals
40.
Energy from 1 litre petrol is ~
41.
In an isolated system, which quantity remains constant?
42.
Mass–energy equivalence shows that
43.
A 1000 W bulb used for 1 hour consumes
44.
Turning this page involves energy of order
45.
Power becomes zero when
