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Science - unit 5. > energy conversion and entropy > Flashcards

energy conversion and entropy Flashcards

1
Q

the law of conservation of matter and energy is the ________ law of thermodynamics.

first
fourth
second
third

A

first

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2
Q

the only explanation for the origin of matter and energy is _________.

the bible
the law of conservation of energy
second law of thermodynamics
first law of thermodynamics

A

the bible

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3
Q

which statements does the second law of thermodynamics support?

the total amount of matter and energy is fixed.
the usable energy in the universe is decreasing.
the usable energy in the universe is increasing.
the entropy of the universe is increasing.
the energy in the universe is being destroyed.

A

the usable energy in the universe is decreasing.
the entropy of the universe is increasing.

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4
Q

the total amount of energy and mass in the universe is _______ law of thermodynamics.

moving
unchanging
increasing
decreasing

A

unchanging

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5
Q

high-energy mechanical devices usually need to be ________ to prevent overheating.

lubricated
watered
cooled
solidified

A

cooled

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6
Q

each step in any energy conversion process will ________.

destroy energy.
gain energy
lose energy
create energy

A

lose energy

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7
Q

in any study of energy, energy conversion is not important. true or false?

A

false

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8
Q

evolution requires that molecules and atoms assemble themselves into __________ order.

moving
decreasing
unchanging
increasing

A

increasing

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9
Q

a device that rotates coils of magnets between wires is a _______.

match
generator
radiator
battery

A

generator

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10
Q

select the type of energy involved in each step.

you turn on the burner of a gas stove:

the gas ignites:

the gas warms the water in a pan:

chemical
mechanical
conduction
heat
magnetic
potential
electrical

A

mechanical

chemical

heat

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11
Q

a battery lighting a bulb is an example of _______ energy converting to ________ energy.

kinetic
heat
magnetic
nuclear
chemical
electrical
gravitational

A

chemical energy converting to electrical energy

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12
Q

combustion is an example of ________ to ________ energy conversion.

magnetic
heat
gravitational
electrical
kinetic
chemical
nuclear

A

chemical to heat energy.

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13
Q

generators (from nothing) create electrical energy. true or false?

A

false

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14
Q

what is necessary to put something in order?

randomness
energy and intelligence
intelligence
energy

A

energy and intelligence

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15
Q

generator (uses)

chemical energy
kinetic energy
mechanical energy
potential energy
electric energy
radiant energy

A

electric energy

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16
Q

battery

chemical energy
kinetic energy
mechanical energy
potential energy
electric energy
radiant energy

A

chemical energy

17
Q

high water tower

chemical energy
kinetic energy
mechanical energy
potential energy
electric energy
radiant energy

A

potential energy

18
Q

wind

chemical energy
kinetic energy
mechanical energy
potential energy
electric energy
radiant energy

A

kinetic energy

19
Q

light wave energy

chemical energy
kinetic energy
mechanical energy
potential energy
electric energy
radiant energy

A

radiant energy

20
Q

moving electrons

chemical energy
kinetic energy
mechanical energy
potential energy
electric energy
radiant energy

A

mechanical energy

21
Q

low temperature heat which is lost ins not usable for work. true or false?

A

true

22
Q

the theory of evolution is opposed by the _______ law of thermodynamics.

first
third
second
fourth

A

second

23
Q

what happens to the energy that is “lost” from the generator?

it is unusable
it is destroyed
it is converted into electricity

A

it is unusable

24
Q

which device converts the kinetic energy of water into mechanical energy?

generator
water inlet
turbine
water behind the dam

A

turbine

25
Q

the movement of electrons through an object

electrical energy
maximum entropy
entropy
thermodynamics
current electricity
compress
static electricity
generator
conversion
randomness
exothermic

A

current electricity

26
Q

the energy of moving electrons

current electricity
electrical energy
exothermic
maximum entropy
thermodynamics
conversion
randomness
compress
entropy
generator
static electricity

A

electrical energy

27
Q

giving off heat

entropy
thermodynamics
current electricity
compress
static electricity
generator
conversion
randomness
exothermic

A

exothermic

28
Q

the study of heat and energy conversions.

entropy
thermodynamics
current electricity
compress
static electricity
generator
conversion
randomness
exothermic

A

thermodynamics

29
Q

electricity produced by removing electrons from atoms

current electricity
exothermic
maximum entropy
thermodynamics
conversion
randomness
compress
entropy
generator
static electricity

A

static electricity

30
Q

the act of changing

electrical energy
maximum entropy
entropy
thermodynamics
current electricity
compress
static electricity
generator
conversion
randomness
exothermic

A

conversion

31
Q

after a metal object turns to dust (rust), it would have _________.

low entropy
no entropy
high entropy

A

high entropy

32
Q

the flow of electrons from one atom to another in a wire is called _________.

magnetism
electric current
fission
radiation

A

electric current

33
Q

the explosion of fuel in an automobile engine cylinder is an example of ________ to ________ energy.

chemical
potential
radiant
gravitational
heat
nuclear

A

chemical to heat energy

34
Q

science does not have an explanation for the origin of matter or energy. true or false?

A

true

35
Q

the second law of thermodynamics makes it difficult for scientists to explain how the original universe became. true or false?

A

true

36
Q

which law of science was in effect immediately after the sixth day of creation?

second law of thermodynamics
first law of thermodynamics

A

first law of thermodynamics

37
Q

heat energy that is lost cannot usually be used to produce work. true or false?

A

true

Science - unit 5. (7 decks)

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