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Energy And Power
Quiz 4
Solution
Q.1.
Which energy source is renewable?
Fuel oil
Natural Gas
WInd
Coal
Q.2.
Energy of motion is called
elastic potential energy
kinetic energy
gravitational potential energy
chemical energy
Q.3.
Which factor contributes to global warming?
increased use of solar-powered cars
increased burning of fossil fuels
better long-term weather forecasts
changing distance between Earth and Sun
Q.4.
The Law of Conservation of Energy states that energy cannot be created or destroyed, but energy can change
its total mass
its total volume
from one form to another
from one state of matter to another
Q.5.
Which form of energy is produced when a rubber band vibrates?
chemical
light
electrical
sound
Q.6.
The unit for power is
Calorie
Work
Watt
Power
Q.7.
All the following activities produce the same amount of work done EXCEPT
Lifting a box vertically through a height of 1 m with a force of 20N against the gravitational force.
Pushing a trolley over a distance of 2 m with a force of 10 N.
Pulling a drawer over a distance of 20 cm with a force of 1 N
Lifting up a stack of books weighing 20N to a vertical height of 100 cm.
Q.8.
As a rubber band is snapping back, it has what kind of energy?
Potential
Kinetic
None
Position
Q.9.
Which form of energy is almost always produced during energy transformations?
Heat
Electricity
Light
Sound
Q.10.
Energy is
Whether one feels like doing work
the ability to do work
calculated by dividing the amount of work by the amount of time to do the work
just another word for work
Q.11.
Which of the following activities involves work done?
An old man lying still on the floor
A boy running around a stadium
A girl holding a stack of books
A baby crying
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