The applicable law in Question 9 is:

the second law of thermodynamics

The applicable law in Question 3 is:

the law of conservation of matter

In an energy change, we cannot break even (maintain the same amount of energy in its original form) because:

during the change, heat is given off to the environment.

The applicable law in Question 5 is:

the first law of thermodynamics

A barrel of oil can only be used once as a fuel because:

when it is burned, the thermal energy not used is given off as heat.

The applicable law in Question 7 is:

the second law of thermodynamics

The applicable law in Question 1 is:

The second law of thermodynamics

It takes energy to make energy:

because we must use energy to either find, remove, process or refine energy

You can never really throw matter away because:

Matter can neither be created nor destroyed, but merely changed

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Laws of Physics and Nature

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Questions 10

Answers

1
The applicable law in Question 9 is:
the second law of thermodynamics
the first law of matter
the first law of thermodynamics
the law of conservation of matter
2
When heat energy is converted to work, some energy is degraded to a less useful form: heat given off to the environment.
False
True
3
The applicable law in Question 3 is:
the second law of thermodynamics
the law of conservation of matter
the first law of thermodynamics
the second law of matter
4
In an energy change, we cannot break even (maintain the same amount of energy in its original form) because:
energy changes into an equal quantity of matter.
during the change, the energy changes from one form to another.
during the change, heat is given off to the environment.
because we always need more energy than we can obtain.
5
The applicable law in Question 5 is:
he law of conservation of matter
he law of conservation of energy
the first law of thermodynamics
the second law of thermodynamics
6
A barrel of oil can only be used once as a fuel because:
when it is burned, the thermal energy not used is given off as heat.
when it is burned, it completely disappears.
when energy is changed from one form to another, there is always left over.
7
The applicable law in Question 7 is:
the first law of thermodynamics
the law of conservation of energy
the second law of thermodynamics
the law of conservation of matter
8
The applicable law in Question 1 is:
The law of conservation of matter
The second law of thermodynamics
The second law of conservation of matter
The first law of thermodynamics
9
It takes energy to make energy:
because the energy used to generate work can be converted back into energy.
because we must use energy to either find, remove, process or refine energy
because the creation and destruction of energy is a circular process.
but the total amount of energy to make energy equals the energy you gain.
10
You can never really throw matter away because:
The planet is a closed system. Throwing away matter results in it piling up
To get rid of matter you have to burn it to change it into energy
Matter is always reduced as it can also be lost as heat
Matter can neither be created nor destroyed, but merely changed

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