Terms & Questions

Question 1

The overcoming of resistance

Answer 1

WORK

Question 2

Loss of head at the entrance of a pipe

Answer 2

TURBULENCE

Question 3

The quantity of a substance that moves past a point in a given time

Answer 3

FLOW RATE

Question 4

Force exerted by a substance on a unit of area

Answer 4

PRESSURE

Question 5

Capacity to do work

Answer 5

ENERGY

Question 6

Rate a mass travels in a particular direction

Answer 6

VELOCITY

Question 7

Acts in accordance with law of freely falling bodies

Answer 7

GRAVITY

Question 8

The rate at which work is done

Answer 8

POWER

Question 9

The rate at which velocity in a mass increases with time

Answer 9

ACCELERATION

Question 10

Unlike atoms are bonded together chemically

Answer 10

COMPOUND

Question 11

Force or shock of a confined fluid

Answer 11

WATER HAMMER

Question 12

Closed space at which all air has been removed

Answer 12

VACUUM

Question 13

Resistance to flow

Answer 13

VISCOSITY

Question 14

A force that resists the relative motion or tendency to such motion of two bodies or substances in contact

Answer 14

FRICTION

Question 15

Pressure arising from the height of a liquid is called?

Answer 15

HEAD

Question 16

Chemical changes in which oxygen plays a part are often referred to as?

Answer 16

COMBUSTION

-&-

OXIDATION

Question 17

The state of matter is determined by its?

Answer 17

TEMPERATURE

-&-

PRESSURE

Question 18

The the air or gaseous envelope surrounding earth is considered to be composed of what percent oxygen?

Answer 18

21%

Question 19

Absolute zero or the temperature where all molecular motion ceases is?

Answer 19

-460 DEGREES

FAHRENHEIT

Question 20

The power of matter to be floated by a fluid is called?

Answer 20

BUOYANCY

Question 21

Resistance to flow is measure of a fluids?

Answer 21

VISCOCITY

Question 22

What are the 2 kinds of velocity?

Answer 22

CONSTANT

-&-

VARIABLE

Question 23

The rate at which work is done is called?

Answer 23

POWER

Question 24

The rate at which the velocity of a mass increases with time is called?

Answer 24

ACCELERATION

Question 25

By doubling the velocity of the flow of water, we can increase its power to suspend particles ______ times?

Answer 25

Question 26

Increasing velocity of flow through a pipe, does what to the kinetic energy?

Answer 26

**INCREASES**

Question 27

Of the six simple machines Which 2 are the "basic machines" While the others are adaptations?

Answer 27

**1.) LEVER** **2.) INCLINED PLANE**

Question 28

What are the 3 functions of a machine?

Answer 28

**1.) CHANGE MAGNITUDE OR INTENSITY OF FORCE** **2.) CHANGE DIRECTION OF FORCE** **3.) CHANGE SPEED RESULTING FROM FORCE**

Question 29

The pivot point of a lever is called?

Answer 29

**FULCRUM**

Question 30

Which class lever increases speed of distance rather than force?

Answer 30

**Third Class**

Question 31

Speed is developed on a wheel and axle when effort is applied to the?

Answer 31

**AXLE**

Question 32

A fixed pulley changes direction and _______ the mechanical advantage?

Answer 32

**DOES NOT CHANGE**

Question 33

If one gear of a pair is much smaller than the other, the smaller gear is called?

Answer 33

**PINION**

Question 34

An odd number of gears in a simple gear train produces a change in direction?

Answer 34

**FALSE**

Question 35

The distance between 2 successive threads on a screw is called?

Answer 35

**PITCH**