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Honors Physics > Mid-Year Finals Vocab Review Flashcards > Flashcards

Mid-Year Finals Vocab Review Flashcards

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1
Q

what is pseudoscience

A

looking for evidence and proof.

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2
Q

what does FDA stands for

A

food and drug administration

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3
Q

what is theory

A

A well tested and widely accepted explanation or using something happens based on measurable evidence.

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4
Q

what is precision

A

is the degree the values are close to each other or repeated

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5
Q

what is density

A

density is a subtance’s mass per unit of volume.
p=m/v

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6
Q

what is formula of volume of cylinder

A

pie r square into height

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7
Q

what is mass

A

is the measure of the amount of matter in an object.

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8
Q

what is velocity

A

It is the change of point initial to point final over that time period. It is speed with direction.

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9
Q

what is speed

A

the distance travelled divided by time taken.

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10
Q

what is data pair

A

graph are made using pairs of numbers. Each pair of numbers represents one data point on a graph. T

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11
Q

what is Axis labels

A

The label on the (horizontal )ie. x axis is the name of the independent variable. The label on the (vertical) i.e y axis is the name of the dependent variable.

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12
Q

what is Data range

A

The range of numbers on each axis depends on the smallest and largest value for each variable . To find the range ,subtract the smallest value from the largest value for a variable.

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13
Q

Experiment

A

can help you understand the natural laws that relate matter and energy

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14
Q

Hypothesis

A

When you formulate ans you make an educated guess of prediction that can be tested by an experiments.

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15
Q

metric system

A

the metric system uses measurement of millimeters, centimeters, meters and kilometers.

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16
Q

English system

A

the English system uses measurements of inches, feet , yards ands miles

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17
Q

constant speed

A

moving at the same distance every second .

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18
Q

length

A

distance is measured in units of length

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19
Q

time interval

A

A quantity of time is known as time interval

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20
Q

free fall

A

an object in motion only under the influence of gravity.

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21
Q

Reference frame

A

A coodinate system from which motion is viewed is a reference frame

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22
Q

Relative velocity

A

the vector difference between the velocity of two objects; the velocity of a body with respect to another regarded as being at rest.

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23
Q

Vector

A

A quantity having magnitude and direction represented by a ——–> that is directional and sealed by distance.

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24
Q

Resultant

A

combined effect of two or more component vectors acting at the same point

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25
Q

Hang time

A

the amount of time projected remains in air

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26
Q

Projectile

A

An object that is moving through the air

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27
Q

Range

A

Horizontal displacement of Projectile

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28
Q

Trajectory

A

The path of flight of projectile

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28
Q

Apex

A

Maximum vertical displacement of projectile

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29
Q

sin x

A

is equal to opp over hyp

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30
Q

tangent

A

is equal to opp over adj

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31
Q

cosine

A

is equal to adj over hyp

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32
Q

Delta

A

is the symbol for change

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33
Q

acceleration

A

is the rate of change of velocity

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34
Q

Pythagorean theorem

A

A2 +b2+C2

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35
Q

Significant figures

A

is the number of real measurement accuracy.

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36
Q

magnitude

A

the amount of something

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37
Q

theta

A
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38
Q

Inertia

A

is the resistance to changes of motion due to mass. increased mass = increased inertia.

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39
Q

Newtons second law

A

states that the acceleration of object is directly related to the force on it, and inversely related to the mass of the object you need more force to move or stop an object with a lot of mass for inertial than you need for an object with less mass.
formula for second law of motion f=acceleration/mass

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40
Q

acceleration formula

A

acceleration=force/mass

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41
Q

mass formula

A

mass=force/acceleration

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42
Q

momemtum

A

p= m x v
momentum symbolized with a p, is expressed in units of kg m/sec; m is the mass of the object, in kilograms; and v is the velocity of the object in m/sec.

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43
Q

impulse

A

a change in momentum for an object is equal to impulse . momentum changes when velocity changes
impulse =change in momentum

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44
Q

potential energy

A

is stored energy
formula for potential energy is Ep =mgh

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45
Q

kinetic energy

A

is energy of motion.
formula for kinetic energy= Ek=1/2mv2
to do this calculation ,square the velocity value next multiply by the mass, and then divide by 2.
energy is measured in joules or newton meters.

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46
Q

elastic collision

A

collision that has objects stick together

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47
Q

elastic collision

A

collision that has the objects start apart and end apart

48
Q

newtons 3rd law

A

for every action there is an equal and opposite reaction

49
Q

conservation of energy

A

energy is not lost or made it just changes form.

50
Q

Elastic potential

A

A bow or rubber band being pulled has this type of energy

51
Q

work

A

work is the amount of force applied to an object in the same direction as the motion over a distance. by measuring how much force you have used to move something over a certain distance you can calculated how much work you have accomplished

52
Q

formulae of work

A

w(joules) = force x distance

52
Q

unit for work

A

Nm (newton meters) which also called the joules

53
Q

power

A

The amount of energy transferred or converted per unit.
power(watts)=work(joules)/time(seconds)

54
Q

watts

A

the unit for power and equal to joules/second

55
Q

one horse power

A

equal to 746 watts

56
Q

heat

A

flow of thermal energy
the overall energy of moving molecules.

57
Q

specific heat

A

the amount of energy needed to raise the temp of 1 gram of substance by one degree c.

58
Q

Radiation

A

heat transfer through waves and empty space

59
Q

boiling point

A

temp at which objects turn from liquid to gas

60
Q

absolute zero

A

no heat energy
okelvin
Theoretical state
-273degree c

61
Q

Entropy

A

A measure of the energy dispersal in a system.

62
Q

conduction

A

heat transfer by contact

63
Q

calorimeter

A

device used to measure changes in thermal energy.

64
Q

temperature

A

measure of molecule speed or vibration

65
Q

Celsius

A

Temperatures scale based on freezing and boiling of water.

66
Q

thermal expansion

A

As molecule are heated they move farther apart

67
Q

convection

A

heat transfer through fluids

68
Q

Horse power

A

746 watts = 1Hp

69
Q

Power

A

Work divided by time

70
Q

Efficiency

A

how well energy is converted to work

71
Q

PE=Mgh

A

potential energy

72
Q

Ft=Mv(final)

A

Impulse formula

73
Q

p=mv

A

formula for momentum

74
Q

m(1)v(1)(initial) + m(2)v(2)(initial) = m(1)v(1)(final) + m(2)v(2)(final)

A

Formula of elastic collision

75
Q

heat

A

heat is transfer of thermal energy , which occur spontaneously from a hotter object to a cooler object.
molecules motion/moving

76
Q

temperature

A

Amount of heat to change,
molecule speed

77
Q

kinetic molecular theory

A

everything is made of
atom +molecule in motion

78
Q

thermal expansion

A

A property of all forms of matter that causes the matter to expand, becoming less dense, when heated.

79
Q

Radiation

A

The thermal transfer of energy by electromagnetic waves

80
Q

Abosolute Zero

A

theoretical absense of all heat energy.

81
Q

what are the three ways heat can be transfered`

A

conduction ,convection ,radiation

82
Q

conduction

A

Heat transfer through contact

82
Q

units for measuring heat

A

celcius and keluin

82
Q

specific heat

A

the amount of heat energy needed to raise one degree celsius in 1 gram of a substance .

82
Q

heat equation

A

Q = M C

82
Q

what is heat

A

Flow of thermal energy,
the overall energy of moving molecules.

82
Q

what is temperature

A

Measure of molecule speed or vibration.

82
Q

cold

A

the absence of heat

82
Q

heat direction

A

from more heat to less heat

83
Q

human body natural response to cold

A

metabolism increases and burns heat

84
Q

longest period of time a heart on ice can last before being transplanted

A

6 hours

84
Q

space race

A

begins when the soviet union launched sputnik

84
Q

sputnik

A

first artificial satellite to orbit the Earth

85
Q

Yuri Gagarin

A

the first man from soviet cosmonaut to orbit the planet

86
Q

explorer I

A

the American responded to Sputnik by launching their own satellite

87
Q

Intake

A

**Is the first cycle of four stroke cycle: **
Air and gasoline mixture is pulled or injected into cylinder after intake valves open

88
Q

Compression

A

Both valves close ,piston move up and compresses Air + Gas (it is more explosive now)

89
Q

Power

A

Third cycle in four stroke :
plug ignites to explodes air/gas pushes piston down forcefully

90
Q

Exhaust

A

fourth cycle ;
exhaust valves open, piston moves up burned fuel +air pushed out

91
Q

Oil filter

A

It cleans impurities from engine oil lubrication

92
Q

Cyclinder head

A

Top of motor hold valves and contains the explosions

93
Q

spark plug

A

device that delivers or measured spark inside cylinder

94
Q

Diesel engine

A

Internal combustion engine compresses diesel oil to explode

95
Q

Crank shaft

A

Turns linear motion into circular motion

96
Q

RMP

A

Revolutions per minute

97
Q

Fuel injector

A

shoots fuel and sir under pressure into cylinder

98
Q

Timing belt

A

Regular turning of cam shaft

99
Q

Valves

A

open and closed cyclinder

100
Q

Air filter

A
101
Q

cam shaft

A

shaft with lobes moving valves to cyclinder

102
Q

compressing Ratio

A

Volume full to compresses

103
Q
A
104
Q

DOCH

A

Double overhead CAM

105
Q

Piston

A

Pushes on crank shaft

106
Q

Block

A

Metal engine casing on body

107
Q
A
108
Q
A

Honors Physics (1 decks)

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