Energy Question Preview (ID: 37327)
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A 4 kg object moving at a speed of 10 m/s has a kinetic energy of
a) 4 J
b) 100 j
c) 200 J
d) 8 J
The formula WEIGHT X HEIGHT is used to calculate
a) gravitational potential energy
b) kinetic energy
c) elastic potential energy
d) mechanical energy
Potential energy is energy
a) of velocity
b) of motion
c) of distance
d) that is stored
The sun's energy comes from
a) nuclear energy
b) chemical energy
c) electromagnetic energy
d) thermal energy
Kinetic energy depends on
a) only mass
b) only velocity
c) mass and velocity
d) height
A skydiver with a mass of 100 kg jumps out of an airplane at a height of 1600 m. The acceleration due to gravity is 9.8 m/s2. What is the GRAVITATIONAL POTENTIAL ENERGY of the skydiver?
a) 9800 j
b) 160,000 J
c) 15, 680 J
d) 160, 000 kJ
Sunlight is a form of
a) electromagnetic energy
b) nuclear energy
c) electrical energy
d) chemical energy
A girl throws a ball 20m into the air. The ball has the maximum potential energy at the height of
a) 0 m
b) 6 m
c) 15 m
d) 20 m
A pendulum set in motion eventually stops because
a) The energy is DESTROYED
b) FRICTION transforms the mechanical energy into thermal energy
c) The KINETIC and POTENTIAL energy are balanced
d) the pendulum runs out of power
An electric blanket transforms electrical energy to
a) thermal energy
b) nuclear energy
c) mechanical energy
d) chemical energy
A moving object can do work so it has ______________ energy.
a) potential
b) chemical
c) kinetic
d) 5 hour
ELASTIC POTENTIAL ENERGY is associated with objects that can be
a) stretched or compressed
b) height
c) length
d) burning/combustion
The energy an object has due to its motion is called _________________________ energy.
a) potential
b) chemical
c) kinetic
d) thermal
Plants transform electromagnetic energy to _________________________ energy.
a) chemical
b) thermal
c) mechanical
d) nuclear
The energy stored in fossil fuels is released by ___________________
a) stretching/compressing
b) kinetic
c) potential
d) burning
WORK is the transfer of energy
a) true
b) false
c)
d)
Potential energy that depends on height is ELASTIC potential energy
a) true
b) false
c)
d)
A pendulum has maximum kinetic energy at the TOP of its swing
a) true
b) false
c)
d)
The law of conservation of energy states that when one form of energy is transformed to another SOME energy is destroyed
a) true
b) false
c)
d)
Power is the rate at which energy is LOST
a) true
b) false
c)
d)
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