Energy Quiz (Theory)
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- Question 1 of 17
1. Question
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- energy
- energy
- energy
Correct 3 / 3 PointsIncorrect / 3 Points -
- Question 2 of 17
2. Question
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Energy = time
6.8 x 10 ^ 9 x x 24 x 60 x 60
Energy = x 10 ^ 17J ( final answer )
It does not have enough due to varying throughout ( the year )
Correct 6 / 6 PointsIncorrect / 6 Points -
- Question 3 of 17
3. Question
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- gravity x height
1.6 x ( 10 ^ 10 ) x 10 x
Energy = x 10 ^ 13 J
- Power = time
Power = 2.72 x 10 ^ 13 /
= x 10 ^ 9
Efficiency = ( 6.8 x 10 ^ 9 ) / ( 7.55 x 10 ^ 9 )
=
Efficiency = %
- Friction of within the ,The generated due to the {[ resistance ]] in the wires.
Correct 13 / 13 PointsIncorrect / 13 Points -
- Question 4 of 17
4. Question
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energy is and the transmission is more The wires do not get up as the amount of is very less.
Correct 5 / 5 PointsIncorrect / 5 Points -
- Question 5 of 17
5. Question
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Burning the
By the being produced between the and the .
Surface of the car and at the ( bottom of the car ) from which and gases are .
Correct 8 / 8 PointsIncorrect / 8 Points -
- Question 6 of 17
6. Question
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- ii)
iii) The transformers only work at .
Correct 2 / 2 PointsIncorrect / 2 Points -
- Question 7 of 17
7. Question
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energy due to the fuel because the car is gaining at end of process energy of car .
Correct 5 / 5 PointsIncorrect / 5 Points -
- Question 8 of 17
8. Question
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The wave in which the are along the direction as the direction of the travel and {[ transfer ]] of energy.
Correct 2 / 2 PointsIncorrect / 2 Points -
- Question 9 of 17
9. Question
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Highest frequency = Hz
Lowest frequency = kHZ ( final answer )
Correct 2 / 2 PointsIncorrect / 2 Points -
- Question 10 of 17
10. Question
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Wavelength = V
= / 20,000
Wavelength = m ( final answer )
Correct 4 / 4 PointsIncorrect / 4 Points -
- Question 11 of 17
11. Question
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( mesh ) traps air and air is a conductor of .It is a good of and it absorb ( er ) any heat. By this the heat is not to the fire fighter
Correct 6 / 6 PointsIncorrect / 6 Points -
- Question 12 of 17
12. Question
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is the amount of in the body and is the with which earth pulls an towards itself.
Weight = gravitational strength.
Correct 7 / 7 PointsIncorrect / 7 Points -
- Question 13 of 17
13. Question
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gravity x height
= 20 x x 6
Increase in potential energy = J ( final energy )
Correct 4 / 4 PointsIncorrect / 4 Points -
- Question 14 of 17
14. Question
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1 / 2 x speed ^ 2
Speed = 9 /
Speed = 0.75
1 / 2 x x ( 0.75) ^ 2
Kinetic energy = J ( final answer )
Correct 5 / 5 PointsIncorrect / 5 Points -
- Question 15 of 17
15. Question
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Energy = current x time
= x 1.5 x 12
energy = J ( final answer )
Correct 4 / 4 PointsIncorrect / 4 Points -
- Question 16 of 17
16. Question
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- Energy can be neither nor . It can only be from one form to another.
- The energy changes to energy ( and K.E and heat/ works against friction )
Correct 5 / 5 PointsIncorrect / 5 Points -
- Question 17 of 17
17. Question
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The sources which will not out even if we use them and they are always available.
Waves
Correct 5 / 5 PointsIncorrect / 5 Points -