Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Jahrdenas_GEAS > Physics > Flashcards

Physics Flashcards

1
Q

Formula for average speed

A

S = distance / time

Note: Involves NO Derivatives/Differentiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Formula for average velocity

A

V = displacement(vector) / time

Note: Involves NO Derivatives/Differentiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Formula for instantaneous speed

A

| Note: Involves NO Derivatives/Differentiation

V(instantaneous) |

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Formula for instantaneous velocity

A

dx / dt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Formula for average accelaration

A

A = ΔV/ Δt

Note: Involves NO Derivatives/Differentiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Formula for instantaneous acceleration

A

A = dV / dt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Formula for Jerk

A

Jerk = da / dt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Formula for Jounce

A

Jounce = d(Jerk) / dt

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Is acceleration scalar or vector?

A

Either

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Newton’s First Law

A

states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Newton’s Second Law

A

a non-zero net force on an object causes acceleration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Newton’s Third Law

A

an action has an equal and opposite reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Unit of Newton

A

1 N = 1 kg.m/s^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Unit of dyne

A

1 dyne = 1 g.cm/s^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Unit of pound force

A

1 lb.f = 1 slug.ft/s^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

He stated that “ a falling object, regardless of mass will fall with constant acceleration”

A

Galileo Galilei

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Universal gravitational constant

A

G = 6.67 x 10^-11 Nm^2 / kg^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Centripetal acceleration formula

A 
A = v^2 / R
R = radius of motion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Centripetal force formula

A 
F = m (v^2 / R )
R = radius of motion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Angular speed of a circular motion

A

w = 2 π f = v / R

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

It is force normal to circular path and is a real force

A

Centripetal Force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

so called Imaginary Force

A

Centrifugal Force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Activity involving force and movement

A

Work

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Is work a scalar or vector

A

Scalar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Formula for work

A 
W = f · d · cos(θ)
W = f · d
W = ΔKE = - ΔPE
KE = kinetic energy
PE = Potential energy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Unit of erg

A

1 erg = 1 dyne.cm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Unit of pound foot

A

1 lb.ft = 1 lbf . ft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Rate of doing work

A

POWEEEEERRRRRR!

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Formula of Power

A 
P = W / t
W = work
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Is power a scalar or vector

A

Scalar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Unit of Watt

A

1 watt = 1 J/s = 1 N.m/s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Unit of horsepower

A

1 hp = 746 watts = 550 ft.lb / s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Capacity to do work

A

Energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Is energy a scalar or vector

A

Scalar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Formula for kinetic energy

A

KE = 1/2 m·v^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Formula for potential energy

A

PE = mgh

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Formula for rotational kinetic energy

A 
KE = 1/2 I x w^2
I = inertia
w = angular velocity
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Unit of Joule

A

1 J = 1 Nm = 1 kg.m^2/s^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

States that “energy is neither created nor destroyed in an Isolated system”

A

Law of conservation of energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Formula for Law of conservation of energy

A

PEi + KEi + KE(rotational)i = PEf + KEf + KE(rotational)f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

It is the amount of motion

A

Momentum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

It is the change in momentum

A

Impulse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

Is momentum scalar or vector

A

Vector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

Is Impulse scalar or vector

A

Vector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

Formula for Momentum

A

p = m · v (N.s)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Formula for Impulse

A 
J = Δp = m·ΔV) = F· Δt
p = momentum
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

the total momentum at all times is constant

A

Conservation of momentum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Formula for conservation of momentum

A

(m1·v1)i + (m2·v2)i = (m1·v1)f + (m2·v2)f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

The kinetic energy and momentum is conserved

A

Elastic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

when momentum is only conserve or energy is lost through heat, light, sound and etc

A

Inelastic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

bodies merge after collision

A

Perfectly Inelastic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

is the ratio of the final to initial velocity difference between two objects after they collide

A

Coefficient of restitution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

Formula Coefficient of restitution

A

e = - (v2a - v2b) / (v1a - v1b) = sqrt(h(bounce)/h(initial))

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

If the coefficient of restitution is equal to 1

A

Perfect Elastic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q

If the coefficient of restitution is equal to 0

A

Perfect Inelastic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q

Formula for force on a spring

A

F =-kx

k=spring’s constant (N/m)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q

Formula for Period of mass on a spring

A

T = 2·π· sqrt(m/k)

k=spring’s constant (N/m)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q

Formula for angular velocity on a spring

A

w = sqrt(k/m)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q

Formula for period of the pendulum

A 
T = 2·π·sqrt(L/g)
L= length of the string
g = gravity
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q

Formula for period of Torsional pendulum

A

T = 2·π·sqrt( I / K )
I - Moment of Inertia
K - Torsional Constant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
61
Q

Wave Intensity of a mechanical wave

A

I = 2 · π^2 · v · ρ · f^2 · (Amplitude in meters)^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
62
Q

Speed of propagation of a Transverse Wave

A

v = sqrt( T / (mu))
T - tension
(mu) - mass per unit length (kg / m)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
63
Q

Speed of propagation of a longitudinal wave

A

v = sqrt( E / (ρ))
E - Modulus of elasticity
(ρ) - density (Kg / m^3)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
64
Q

Modulus of elasticity(E) of Steel

A

E(steel) = 200GPa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
65
Q

A Mechanical wave where Propagation of the wave is parallel to the displacement of medium

A

Longitudinal Wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
66
Q

A Mechanical wave where Propagation of the wave is perpendicular to the displacement of medium

A

Transverse Wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
67
Q

Sound is a (Transverse/Longitudinal) Wave

A

Longitudinal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
68
Q

Speed of sound in Fluids (given Bulk Modulus and density)

A

v(fluid) = sqrt (β / ρ)
B - Bulk Modulus (in Pascals)
ρ - Density (in kg/m^3)

69
Q

Speed of sound in Fluids (given pressure and density)

A

v(fluid) = sqrt (P·γ / ρ)
P - Pressure (in Pascals)
ρ - Density (in kg/m^3)

γ-Adiabatic Constant:
γ = 1.4 (diatomic)
γ = 1.67 (monoatomic)

70
Q

Speed of sound in Fluids (given Temperature and Molar Mass)

A

v(fluid) = sqrt (γ·R·T / MM)
R - Universal Gas Constant (USE 8.314 J / Mol · K)
T - Temperature in Kelvin
MM - Molar mass

γ-Adiabatic Constant:
γ = 1.4 (diatomic)
γ = 1.67 (monoatomic)

71
Q

Sound with a frequency below 20 Hz

A

Infrasound

72
Q

Sound with a frequency above 20 KHz

A

Ultrasound

73
Q

The energy Transferred per unit area and per unit time through sound

A

Sound Intensity

74
Q

Lowest Intensity Perceptible to Human Ear

A

1 x 10^-12 W/m^2

75
Q

another term for Lowest Intensity Perceptible to Human Ear

A

Threshold of Hearing

76
Q

Formula for Sound intensity in dB

A

Intensity(dB) = 10 log ( (Intensity) / (1 x10^-12))

77
Q

Threshold of Hearing in dB

A

0 dB

78
Q

Intensity of Whisper in dB

A

20 dB

79
Q

Intensity of Normal Conversation in dB

A

60 dB

80
Q

Intensity of Street Traffic in dB

A

70 dB

81
Q

Intensity of Large Orchestra in dB

A

100 dB

82
Q

Intensity of Rock Concert in dB

A

110 dB

83
Q

Intensity of Threshold of Pain in dB

A

130 dB

84
Q

Intensity of Preforation of Eardrum in dB

A

160 dB

85
Q

an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move toward (or away from) each other

A

Doppler Effect

86
Q

Formula for Doppler Effect

A

F(obs) =Fs · (V +- V(obs))/(V =- V(source))
V = Speed of sound
V(obs) = speed of observer
V(source) = speed of source

87
Q

Formula of Speed of sound at a given temperature

A 
V = 331 + 0.6 (T)
T = temperature in Celcius
88
Q

Mnemonic for Doppler Effect

A

OPT - Observer Positive Towards

SPA - Source Positive Away

89
Q

is a formula used to describe the relationship between the angles of incidence and refraction

A

Snell’s Law

90
Q

Formula for Snell’s Law

A

n1·sin(theta1) = n2·sin(theta2)

91
Q

What property does not change when the velocity of a wave changes

A

Frequency

92
Q

Index of Refraction Formula

A 
n = c / v
c = speed of light
v = speed of medium
93
Q

Range of visibility of a human

A

400 nm to 750 nm

94
Q

Range of UV

A

below 400 nm

95
Q

Range of IR

A

above 750 nm

96
Q

What happens when light enters from a low index of refraction to a high index of refraction

A

light bends towards normal

97
Q

What happens when light enters from a high index of refraction to a low index of refraction

A

light bends away normal

98
Q

angle of incident ray that causes 90 degrees refraction angle

A

Critical Angle

99
Q

Index refraction of water

A

n = 1.33

100
Q

Index refraction of glass

A

n = 1.5

101
Q

Amount of visible radiation passing per unit of time

A

Luminous Flux

102
Q

SI unit of flux emitted by a point source of 1 candela through an angle of 1 steradian

A

Lumen

103
Q

the solid angle that subtends an area of a surface on a sphere equal to r^2

A

Steradian

104
Q

Formula for luminous flux

A

F(lumen) = I(candela) · w(steradian)

105
Q

Formula for total luminous flux

A

F = 4·π · I(candela)

106
Q

Solid angle of an entire sphere

A

4·π Steradians

107
Q

Luminous Flux is analogous to

A

Magnetic Flux

108
Q

Luminous flux per unit area expressed in lux

A

Illuminance (lumens/sq. ft)

109
Q

Formula for Illuminance (E)

A 
E = F(lumen) / Area 
E = (I(candela) / d^2)·cos(theta)
110
Q

Luminous intensity per unit area

A

Luminance ( cd/ m^2 )

111
Q

Formula for Luminance

A

B = I(candela) / Area

112
Q

The image formed by a Plane Mirror is (Virtual/Real, Upright/Inverted, Left-Right Retained/Left-Right reversal, Same/Different Size, Same/Not Same Distance)?

A
  • Virtual
  • Upright
  • Left-Right Reversal
  • Same Size
  • Same Distance
113
Q

A Convex mirror is (Converging/Diverging)?

A

Diverging (-f)

114
Q

A Concave mirror is (Converging/Diverging)?

A

Converging (+f)

115
Q

The image formed by a Concave mirror when the object is BEYOND the focal point is (Virtual/Real, Upright/Inverted, Magnified/Unmagnified)?

A
  • Real
  • Inverted
  • Unmagnified
116
Q

The image formed by a Concave mirror when the object is AT the focal point is (Virtual/Real, Upright/Inverted, Magnified/Unmagnified)?

A

No Image

117
Q

The image formed by a Concave mirror when the object is WITHIN the focal point is (Virtual/Real, Upright/Inverted, Magnified/Unmagnified)?

A
  • Virtual
  • Upright
  • Magnified
118
Q

The Object Distance (p) for the Mirror/Lens Equation is Always (Positive/Negative)

A

Positive

119
Q

The sign of Image Distance (q) for the Mirror/Lens Equation when the Image is Real

A

Positive

120
Q

The sign of Image Distance (q) for the Mirror/Lens Equation when the Image is Virtual

A

Negative

121
Q

The sign of Focal length (f) for the Mirror/Lens Equation when a Mirror/Lens is Converging

A

Positive

122
Q

The sign of Focal length (f) for the Mirror/Lens Equation when a Mirror/Lens is Diverging

A

Negative

123
Q

Formula for Focal Length

A

f = focal length = (Radius of curvature of lens/mirror) / 2

124
Q

Formula for the Mirror/Lens Equation

A 
1/f = 1/p +1/q
f = focal length = (Radius of curvature of lens/mirror) / 2
p = Object Distance
q = image Distance
125
Q

Formula for Magnification (m)

A

m = -(Image Height) / (Object Height)

126
Q

Sign of Magnification (m) if image is upright with respect to the object

A

Positive

127
Q

Sign of Magnification if image is Inverted with respect to the object

A

Negative

128
Q

For Mirrors, Location of Image with respect to the observing object when image is REAL

A

Image and object are located at the same side of a mirror

129
Q

For Mirrors, Location of Image with respect to the observing object when image is VIRTUAL

A

The image and object are located at Opposing sides of the mirror

130
Q

The Image Formed by a Convex Mirror is always (Virtual/Real, Upright/Inverted, Bigger/Smaller)

A
  • Virtual
  • Upright
  • Smaller Image
131
Q

FOR BOTH MIRROR AND LENS:

If an Image is (Upright/Inverted), it is also a (Virtual/Real) Image. What two Confgurations of this statement are always true?

A
  • Upright And Virtual

- Real And Inverted

132
Q

A Convex lens is (Converging/Diverging)?

A

Converging (+f)

133
Q

A Concave lens is (Converging/Diverging)?

A

Diverging (-f)

134
Q

Are the magnitude and Focal Length formulas for mirrors apliccable to lenses as well?

A

yasssssssssss

135
Q

The image formed by a Convex Lens (Increases/Decreases) in Image height when the object BEYOND a point that is twice the distance of the focal point (2f) approaches that point

A

Increases

136
Q

When the object is at a point that is twice the distance of the focal point (2f), The image formed by a Convex Lens has an Image height that is equal to?

A

Image Height = Object Height

137
Q

The image formed by a Convex Lens (Increases/Decreases) in Image height when the object BETWEEN a point that is twice the distance of the focal point (2f) and the focal point (f), approaches the focal point (f)

A

Increases (Approaches infinity)

138
Q

When the object is at the focal point (f), The image formed by a Convex Lens is ______?

A

Non-existent (No image is formed)

139
Q

The image formed by a Convex lens when the object is WITHIN the focal point is (Virtual/Real, Upright/Inverted, Magnified/Unmagnified, Same-Side/Opposite Side of object)?

A
  • Virtual
  • Upright
  • Magnified
  • Same Side of Object
140
Q

Formula for the Strength of Lens (P)

A 
P = 1 / (+-f)
f = Focal Length (in Meters)
141
Q

Formula for the Strength of Lens (P) when more than one lens is used

A

P(total) = P1 +P2 + …

142
Q

Formula for the Lensmaker Equation

A

1/f = (n - 1) [1 / ( +- R1) + 1 / ( +- R2)]
f - focal length of compounded lens
n - Index of Refraction of material used
R1 & R2 -Radii of lenses

143
Q

Lensmaker Equation: R1 and R2 Sign Convention

A

R1 and R2 are individually evaluated:

POSITIVE if Lens of that specific R is convex
NEGATIVE if Lens of that specific R is concave

144
Q

A Concave lens always has an (Upright/Inverted , Real/Virtual) Image

A
  • Upright

- Virtual

145
Q

Property of lenses that is opposite in a mirror

A

Answer:
The Convention Of whether the image is Virtual or Real

It is based on:
if the Image and Object is on the same side of the LENS, the image is VIRTUAL
if the Image and Object is on opposing sides of the LENS, the Image is REAL

As opposed to a mirror:
if the Image and Object is on the same side of the MIRROR, the image is REAL
if the Image and Object is on opposing sides of the MIRROR, the Image is VIRTUAL

146
Q

Does the sign of a virtual or real image distance remain the same for both mirrors and lenses?

A

YASSSSSSSSSSSSSSSSSS
(q) - is the image distance
q is always positive when real image
q is always negative when virtual image

147
Q

The Ratio of a fluid’s Density Compared to ρwater @ 4 Celcius

A

Specific Gravity

148
Q

Specific Gravity of Air

A

0.0013 Unitless

149
Q

Specific Gravity of Copper

A

8.79 Unitless

150
Q

Another term for Specific Gravity

A

Relative Gravity

151
Q

Formula for Specific Gravity

A

SG = (ρ liquid) / (ρ water)

152
Q

The reciprocal of Density

A

Specific Volume

153
Q

Formula for Specific Volume

A

SV = 1 / ρ = V /m
V - Volume
m - mass

154
Q

The product of Density and the gravitational constant (g)

A

Specific Weight γ

155
Q

Formula for Specific Weight γ

A

SW(γ) = ρ g (in N/m^3)

156
Q

a property analogous to the modulus of elasticity, but is for fluids

A

Bulk Modulus (unit in Pa)

157
Q

the Reciprocal of the Bulk Modulus

A

Compressibility ( unit in 1/kPa)

158
Q

A perpendicular force per unit area of a fluid exerted on a surface of an object, in which the object displaces a volume of that fluid

A

Pressure

159
Q

Formula for Pressure of a Submerged object in a fluid

A

P(submerge) = P(@surface of fluid) + ρ(g)(d)
g - gravitational acceleration
d - distance of submersion of an object with respect to the fluid surface
ρ-density of object, not the fluid

160
Q

Formula for Gauge Pressure

A

P(gauge) = P(absolute) - P(atmosphere)

161
Q

A device that measures the difference in pressure

A

Manometer

162
Q

A device that measures atmospheric pressure

A

Barometer

163
Q

The set of laws that dictate the planetary motions of the solar system in 1600s

A

Kepler’s Laws of Planetary Motion

164
Q

Kepler’s First Law

A

(Law of Ellipses)

Planets move in ellipses, with the sun as a common focus

165
Q

Kepler’s Second Law

A

(Law of Equal Areas)

A Line from a planet to the sun sweeps over an equal amount of area in equal increments of time

166
Q

Kepler’s Third Law

A

(Law of Harmonics)

(Period)^2 is proportional to (mean distance to the sun)^3

167
Q

Orbital Speed of the Earth

A

30 Km / s

168
Q

1 atm converted into:

Pa
mmHg
Torr
Bar
PSI (lb/in^2)
A

1 atm is equal to:

101325 Pa
760 mmHg
760 Torr
1.013 Bar
14.7 PSI (lb/in^2)

Jahrdenas_GEAS (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions