Highlights

Question 1

When unlike atoms are bound together chemically, they form a_______?

Answer 1

Molecular compound

Question 2

2 atoms hydrogen and 1 atom of oxygen forms?

Answer 2

The compound of water

Question 3

When two different elements or compounds are mixed together and the molecules do not combine chemically, the substance is known as a _________.

Answer 3

Mixture

Question 4

The symbol of gold?

Answer 4

Au

Question 5

Atomic weight of gold?

Answer 5

197

Question 6

Specific gravity of gold?

Answer 6

19.32 @ 17.5^0 Celsius

Question 7

When like atoms are bound together chemically, they form an?

Answer 7

Element

Question 8

The smallest division which can be made in a substance and still retain all the properties of the substance.

Answer 8

A molecule

Question 9

What two things determine the state of matter?

Answer 9

Temperature and pressure

Question 10

When heated molecular speed is?

Answer 10

Increased

Question 11

Formulas for converting Fahrenheit to Celsius and Celsius to Fahrenheit.

Answer 11

C=5/9 (f-32)
F=9/5 c+32

Question 12

The temperature at which molecular motion ceases?

Answer 12

Absolute zero (-460 degrees Fahrenheit)

Question 13

Density formula

Answer 13

Question 14

What a closed space from which all gasses have been removed?

Answer 14

A vacuum

Question 15

Viscosity is?

Answer 15

The resistance of fluid flow—-varies with different kinds of fluid and fluid temperature

Question 16

What are the two kinds of energy?

Answer 16

Potential-due to the position of mass
Kinetic-due to motion of mass

Question 17

The rate at which work is done?

Answer 17

Power

Question 18

What are the two kinds of velocity?

Answer 18

-constant
-variable

Question 19

What is a water hammer?

Answer 19

Force or shock which results when movement of a confined liquid is suddenly arrested or accelerated?

Question 20

Define work

Answer 20

Force x distance the overcoming of resistance

Question 21

Define potential energy

Answer 21

Stored energy

Question 22

Define kinetic energy

Answer 22

Energy which a body possesses in virtue of being in motion

Question 23

Define friction

Answer 23

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other

Question 24

What are the four functions of gears?

Answer 24

-transmit positive motion
Change direction
-change speed
-increase or decrease force

Question 25

With an odd number of gears in. Simple gear train, the driver and driven gears rotate in the _____ direction. An even number of gears produces a _____in direction.

Answer 25

Same;change

Question 26

What is the effort distance on an inclined plane?

Answer 26

The slope

Question 27

What 4 things are screw threads used for?

Answer 27

-transmit motion
-apply tremendous forces with little effort
-hold parts together
-obtain measurements

Question 28

Most screw heads are said to have a _____ number of threads per inch.

Answer 28

Definite

Question 29

Ratio for gear teeth

Answer 29