Deck 2: Matter and Energy

Question 1

A solid material exerts a pressure or force ____.

A) in all directions
B) downward only
C) outward and downward
D) outward only

Answer 1

B

Question 2

Heat is a form of energy because of the motion of molecules.

Answer 2

True

Question 3

One watt of electrical energy is equal to ____.

A) 3.1416 Btu/h
B) 3.413 Btu /h
C) 3.3416 Btu /h
D) 3.3146 Btu /h

Answer 3

B

Question 4

An example of a fossil fuel is hydrogen.

Question 5

At a constant pressure, the volume of a gas varies as to the absolute temperature and at a constant volume the pressure of the gas varies directly with the absolute temperature. This is known as ____.

A) Charles' Law
B) Tom's Law
C) Boyle's Law
D) Dalton's Law

Question 6

Specific volume is the term used to indicate the space a weight of gas will occupy.

Question 7

If the temperature remains constant and the volume that a gas occupies increases, the pressure will ____.

A) decrease
B) increase
C) remain the same
D) cannot be determined from the information given

Question 8

A helicopter is lifting an 800-pound unit at a rate of 200 feet per minute. How many horsepower of work energy is the helicopter using in the process?

A) 3.863 hp.
B) 4.517 hp.
C) 4.848 hp.
D) 5.209 hp.

Question 9

A liquid material exerts a pressure or force ____.

A) in all directions
B) downward only
C) outward and downward
D) outward only

Question 10

A vapor material exerts a pressure or force ____.

A) in all directions
B) downward only
C) outward and downward
D) outward only

Question 11

The volume of gas varies inversely with the absolute pressure, provided the temperature remains constant. This is called ____.

A) Charles' Law
B) Tom's Law
C) Boyle's Law
D) Dalton's Law

Question 12

The unit used to measure electrical power is the ____.

A) volt
B) ampere
C) watt
D) ohm

Question 13

The law that states that "energy is neither created or destroyed, but can be converted from one form to another" is called the ____________________.

Question 14

How many watts of electrical power are equal to 1 horsepower?

A) 33000.
B) 15000.
C) 746.
D) 660.

Question 15

A material that occupies space and has mass is called ____________________.

Question 16

The total pressure of a confined mixture of gases is the sum of the pressures of each of the gases in the mixture. This is known as ____.

A) Charles' Law
B) Tom's Law
C) Boyle's Law
D) Dalton's Law

Question 17

As heat is applied to a closed container containing a gas, the pressure inside the container will decrease.

Question 18

Most of the energy we use comes from something we already have on Earth. The only "new" energy we get comes from the ____________________.

Question 19

Matter exists in three states: ____________________, ____________________, and ____________________.

Question 20

A law of conservation of energy states that energy is neither created nor destroyed.

Question 23

One pound of ice at 20°F exerts its force downward. After absorbing 200 Btus, what direction(s) will the force be exerted? After absorbing 2000 Btus?

Question 24

The unit of measurement of electrical power is the ____________________.

Question 25

One horsepower of work energy equals the amount of work done when lifting ____________________ pounds to the height of ____________________ foot in ____________________ minute.

Question 26

Define a molecule.

Question 27

Define power.

Question 28

____________________ ft-lb of work is accomplished when an 800-lb condensing unit is lifted to the top of a 40-ft building .

Question 29

Define specific gravity.

Question 30

Define specific volume.

Question 31

Define an atom.

Question 32

Define density.