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Senior High School: 11th and 12th Grade
Physics
Forces - Forces And Energy
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Q.1
What are the units used for power?
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Joules
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Watts
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Volts
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Amperes
Q.2
What is the formula for power?
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P = W⁄t
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P = t⁄W
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P = W x t
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W = P⁄t
Q.3
What is the time taken to move an object if the total power used is 100 W and the energy transferred by a force to the object is 1,000 J?
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10 seconds
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100 seconds
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1,000 seconds
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0.1 seconds
Q.4
What is transferred when work is done?
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Charge
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Voltage
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Energy
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Electrons
Q.5
What is the formula for gravitational potential energy?
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GPE = m x h⁄g
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GPE = h x m⁄g
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GPE = g x h⁄m
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GPE = m x g x h
Q.6
What is gravitational potential energy?
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The energy an object has due to its position within a gravitational field
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The strength of the gravitational field at the center
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The speed of an object due to the force of gravity
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The energy an object radiates to other objects within a gravitational field
Q.7
What is work done?
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The amount of energy transferred to an object that is being moved
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The amount of energy transferred to an object at rest
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The force needed to move an object
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The distance an object can be moved
Q.8
What are the units used for work done?
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Joules
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Watts
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Coulombs
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Amperes
Q.9
What is the gravitational potential energy of a ball of mass 100 g which is at a height of 1 m above the Earth? (Note: The gravitational strength of the Earth is 9.81 N/Kg.)
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1000 J
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1 J
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0.1 J
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1 N
Q.10
What is the formula for work done?
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W = d⁄F
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W = F⁄d
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F = W x d
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W = F x d
0 h : 0 m : 1 s
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