Science 6 Chapter 7 Test Set B Question Preview (ID: 35337)
Energy.
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When a large truck and small car are moving at the same speed, the truck has greater kinetic energy because of its
a) speed
b) velocity
c) mass
d) distance
If the velocity of an object is doubled, the kinetic energy is multiplied by
a) 1
b) 1.5
c) 2
d) 4
To maintain your body temperature, your body turns chemical potential energy into
a) nuclear energy
b) kinetic energy
c) electromagnetic energy
d) thermal energy
As water runs over a waterfall, the potential energy turns into
a) kinetic energy
b) electric energy
c) thermal energy
d) nuclear energy
What is the law that states energy cannot be created nor destroyed?
a) The law of conservation of mass
b) The law of conservation of momentum
c) The law of conservation of energy
d) The law of universal gravitation
When work is done on an object, the object gains energy.
a) True
b) False. Change energy to speed.
c) False. Change energy to temperature.
d) False. Change energy to momentum.
The kinetic energy of a book on a shelf is equal to the work done to lift the book to the shelf.
a) True
b) False. Change kinetic to potential.
c) False. Change kinetic to thermal.
d) False. Change kinetic to electromagnetic.
A compressed spring has elastic potential energy.
a) True.
b) False. Change elastic potential to gravitational potential.
c) False. Change elastic potential to thermal.
d) False. Change elastic potential to kinetic.
In a machine, work output is less than work input because some energy is converted into thermal energy.
a) True.
b) False. Change thermal to kinetic.
c) False. Change thermal to potential.
d) False. Change thermal to mechanical.
A nuclear reaction in which the nuclei of atoms join together is called nuclear fission.
a) True.
b) False. Change fission to energy.
c) False. Change fission to fusion.
d) False. Change fission to fissure.
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