10 Basic Physics

Front 1

Define matter

Back 1

Any substance that occupies space and has mass

Front 2

Name three states of matter

Back 2

Solid, liquid and gas

Front 3

Define kinetic energy

Back 3

it is the energy of motion

Front 4

work is the product of what two factors

Back 4

force and distance moved

Front 5

what are the parts of a lever

Back 5

A rigid bar and a pivot point called the fulcrum

Front 6

A wheelbarrow is what class of lever

Back 6

second class lever

Front 7

Are all three states of matter affected by thermal expansion? If so which is affected the most

Back 7

all three are affected, but gases are affected the most

Front 8

what is a british thermal unit (BTU)

Back 8

The amount of heat energy required to change the temperature of 1 pound of water 1 degree Fahrenheit

Front 9

three methods of heat transfer

Back 9

Conduction, convection and radiation

Front 10

What term defines the temperature at which all molecular activity stops

Back 10

absolute zero

Front 11

Can liquids be compressed?

Back 11

No

Front 12

what are the units used to express hydraulic or pneumatic pressure (United states)

Back 12

PSI (pounds per square inch)

Front 13

Describe how pressure is transmitted when a force is applied to a confined liquid

Back 13

pressure is transmitted equally in all directions

Front 14

what formula expresses the relationship between force, pressure and area

Back 14

Force = Area X pressure

Front 15

what is the approximate speed of sound at sea level on a standard day

Back 15

661 knots or 340 meters per second or 750 miles per hour

Front 16

what is the athmospheric pressure at sea level on a standard day

Back 16

29.92 inches mercury or 1013.2 millibars

Front 17

what is the temperature on a standard day at sea level

Back 17

59 degrees Fahrenheit or 15 degrees celsius

Front 18

what are the factors that determine density altitude

Back 18

temperature and atmospheric pressure

Front 19

what is the term used to describe the ratio between the amount of moisture actually present in the atmosphere as compared to the amount of air could hold if it is completely saturated

Back 19

relative humidity

Front 20

what are the four principles acting on an airplane in flight?

Back 20

lift, gravity, thrust and drag

Front 21

what is the term that describes the angle between the relative wind and the chord line of an airfoil

Back 21

angle of attack

Front 22

what are the factors that cause a wing to stall

Back 22

when the angle of attack exceeds a critical value and the airflow separates from the upper surface and becomes turbulent

Front 23

what are the principle effects that result from lowering the flaps while in flight?

Back 23

lift increases, drag increases and stall decreases

Front 24

what is the function of a wing mounted vortex generator

Back 24

they delay or prevent airflow from separating from the upper surface of a wing during high speed flight

Front 25

how does blade flapping help to compensate for dis-symmetry of lift in helicopter main rotor system?

Back 25

flapping increases the angle of attack and lift on the retreating blade and decreases AOA and lift on advancing blade

Front 26

how does the airflow through the main rotor of a helicopter change during the transition from normal flight to auto rotation

Back 26

during normal flight air moves downward, in auto rotation air moves upward

Front 27

what is friction

Back 27

opposition to relative motion between two objects in contact with each other.

Front 28

what is the condition called when the heat energy of a given gas sample is reduced until motion of the molecules would cease entirely

Back 28

absolute zero

Front 29

what are three basic parts of all levers

Back 29

fulcrum, force or effor and resistance