Brainscape's Knowledge GenomeTM

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


See full index

MCAT 1 > Physics I > Flashcards

Physics I Flashcards

You may prefer our related Brainscape-certified flashcards:
MCAT flashcards
1
Q

Adding and Subtracting Vectors

A

Head to tail method

Component method

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

Force

A

any influence capable of causing a mass to accelerate

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

capacitors in series

A

inverse of the sum of inverses

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

Projectiles

A

falling bodies in two dimensions

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

Mass
Temperature
Time

A

Scalar

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

force with a pulley

A

F=mg/#ropes

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

Fnet=ma

A

Newton’s second law

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

Potential energy in a fluid per unit volume

A

PE=pgh (p is density)

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

equipotential lines are drawn

A

perpendicular to field lines

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

Capillar action

A

ability of a liquid to flow in narrow spaces without the assistance of external forces

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

what direction is the force of friction

A

opposite the direction of motion

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

Time in the air

A

(2Vy)/g

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

Center of mass

A

weighted average of mass distribution

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

field

A

invisible influence that can exert a force on a mass or charge

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

is mechanical energy conserved

A

yes, in the absence of non-conservative forces

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

Specific gravity

A

a ratio that describes how dense something is compared to water
SG=Dsubstance/Dwater

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

Action-reaction

A

Newton’s third law

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

two vertical lines of equal length

A

capacitor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Inertia

A

the ability of an object to resist a change in its velocity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

A constant forces causes a

A

constant acceleration

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

current into a node=

A

current ot of a node

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

G is analogous to

A

K

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

non-conservative forces

A

friction, drag, air resistance

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

what is theta in calculating a magnetic field

A

angle between v and B

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

isolated system

A

no flow of matter or energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

heat energy

A

dissipated as heat, usually from a collision or from a current-carrying wire

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

G

A

6.67e-11 (m^3)/kg*s^2)

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

sin(0)

A

0

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

what type of current producing a sine wave

A

alternating

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

his analogous to

A

r or d

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

changing plate thickness causes what change to capacitance

A

none

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

Min potential energy of a pendulum

A

At the bottom of the arc

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

Static friction

A

occurs without sliding

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

m is analogous to

A

q

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

heat is energy transfer via

A

energy flow

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

for the same two surfaces, is kinetic or static friction more?

A

static friction is more

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

Kinetic friction

A

occurs with sliding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

units of B in magnetism

A

Nc/Cm

kg/A*s^2

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

Q

A

ratio of charges

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

strength of gravitational field

A

g=Gm/r^2

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

Density

A

Degree of compactness of a substance

D=m/v

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

“exactly balanced”

A

equilibrium

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

equation for capacitance

A

C=Q/V

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

Period of a mass on a spring

A

T=2pi*sqrt(m/k)

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

tails of field lines point to

A

positive charge

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

Displacement
Momentum
Weight

A

Vector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

What does a positive displacement versus time slope represent?

A

motion to the right

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

V= in a circuit

A

0

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

what always is true at equilibrium

A

net force is zero

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

energy transfer via force

A

work

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

PE(capacitor)= (2 equations)

A

1/2CV^2=1/2VQ

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

What value is changing with time?

A

y axis

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

Center of buoyancy

A

at the center of mass of the fluid displaced

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

AxBx*AyBy

A

Dot product

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

shorter line in a battery

A

negative

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

formula for resistance

A

R=pL/A

p-resistivity
L- length
A- cross sectional area

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

battery

A

electron pumps that push electrons onto the negative terminal

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

Force of friction

A

Ff=uFn=umgcos(theta)

u- for static or kinetic friction

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

equations for power

A

P=(deltaE)/t
P=W/t
P=Fdcos(theta)/t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q

gh is analogous to

A

V

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

Period of a pendulum

A

T=2pi*sqrt(L/g)

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

Elastic potential energy

A

potential energy stored in a compressed spring

PE=0.5k(deltaX)^2

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

increasing temperature on resistivity

A

linear increase

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

formula for torque

A

T=F*l
T=mgl
T=Frsin(theta)

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

Pascal’s Law

A

pressure is transmitted in all directions, undiminished, through a contained, incompressible liquid
change in pressure at any point in a confined, incompressible fluid causes the same change at every point

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

machines reduce

A

the force necessary to do an amount of work

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

diagonal circuit break line

A

switch

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

what happens to a dipole when exposed to an electric field

A

aligns with the field

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
69
Q

two vertical lines of unequal length

A

battery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
70
Q

voltage is

A

electrical potential

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
71
Q

Air resistance

A

the force exerted on projectiles or falling bodies due to actual physical collisions with air molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
72
Q

electric potential energy of a constant electric field

A

PE=qEd

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
73
Q

Hooke’s law

A

F=k(deltaX)

DeltaX is the displacement of the spring from its equilibrium point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
74
Q

in what type of system is energy conserved

A

isolated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
75
Q

Action-reaction pairs

A

Bat hitting a ball
Balloon
Standing on the ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
76
Q

strength of a point charge electric field

A

E=Kq/r^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
77
Q

point charge fields depend on

A

distance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
78
Q

Unit of force

A

Newton

(kg*m)/s^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
79
Q

static equilibrium

A

objects at rest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
80
Q

point charge fields are most similar to

A

gravity in space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
81
Q

Capacitor

A

store energy and charge by holding electrons on plates separated by a small distance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
82
Q

increasing dielectric strength causes what change to capacitance

A

increase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
83
Q

Normal force

A

Fn=mgcos(theta)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
84
Q

Tension

A

force in a rope, string, cable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
85
Q

negative charges in magnetism

A

south poles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
86
Q

increasing distance between plates causes what change to capacitance

A

decreases (increases voltage)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
87
Q

work-energy theorem

A

work=KE(final)-KE(initial)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
88
Q

rsin(theta) is always equal to

A

l

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
89
Q

Hooke’s law is used for?

A

Springs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
90
Q

definition of voltage

A

amount of potential energy a system is capable of storing per unit charge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
91
Q

Ohm’s Law

A

V=IR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
92
Q

energy transfer via energy flow

A

heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
93
Q

Range

A

Horizontal distance traveled

Vx*t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
94
Q

KE=

A

1/2mv^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
95
Q

insulator

A

internal electrical charges do not flow freely

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
96
Q

direct current

A

an electric current flowing in one direction only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
97
Q

force applied across a distance

A

work

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
98
Q

(-) versus (+) charge

A

electrons versus deficiency of electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
99
Q

cos(90)

A

0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
100
Q

Adhesive forces

A

attractive forces between unlike substances

cling to surfaces

101
Q

g is analogous to

A

E

102
Q

Displacement

A

the shortest distance from A to B

103
Q

Scalar

A

Has only magnitude

104
Q

battery is an example of what energy

A

chemical

105
Q

battery in series

A

add directly

106
Q

force of a magnetic field=

A

qvBsin(theta)

107
Q

what direction does current flow

A

opposite of electrons, negative to positive

108
Q

Density of water

A

1g/cm^3

109
Q

Scalar product

A

Dot product

110
Q

what does a positive velocity versus time slope represent?

A

positive acceleration

111
Q

Frequency

A

f=1/T

112
Q

g

A

always 10m/s^s DOWN

113
Q

Cross section area and air resistance

A

greater cross sectional area impacting the air means more air resistance

114
Q

what should be set equal in fulcrum problems

A

torque

115
Q

Optimal launch angle

A

45°

116
Q

Straight line graph

A

Constant slope

117
Q

Gravitational potential energy (near earth and in space)

A

Near earth: PE=mgh

In space: PE=(-Gm1m2)/r

118
Q

Y values above the x axis

A

positiove

119
Q

Exists at the center of mass

A

Center of gravity

120
Q

Archimede’s Principle

A

any object displaces an amount of fluid exactly equal to its own volume or to the volume of whatever fraction of the object is submerges
The weight of the displaced fluid is exactly equal to the buoyant force pushing up on the object

121
Q

sin(90)

A

1

122
Q

electrical potential energy of a point charge electric field

A

PE=-Kqq/r

123
Q

Min kinetic energy of a pendulum

A

At the max height

124
Q

What does slope of a displacement versus time graph represent?

A

velocity

125
Q

changing a magnetic field creates

A

electrical field

126
Q

What are the conditions for a constant velocity?

A 
No acceleration
No net force
No change in direction
All forces sum to zero
Equilibrium
127
Q

Turbulence

A

although net flow is in one direction, there are random eddies, changes in direction and velocity
@increasing velocities

128
Q

Center of gravity

A

point at which the resultant of the system of parallel forces formed by the weights of all the particles constituting the body passes for all positions of the body

129
Q

open system

A

flow of energy and matter

130
Q

cos(30)

A

sqrt(3)/2

131
Q

superconductivity

A

zero resistance

132
Q

Max kinetic energy of a pendulum

A

At the bottom of the arc

133
Q

open switch

A

no electron flow

134
Q

Universal law of gravitation

A

F=(Gm1m2)/r^2

135
Q

An increase in speed of fluid occurs with

A

a decrease in potential energy or pressure, or both

136
Q

The fraction submerged of an object is equal to

A

the ratio of object density to liquid density

137
Q

closed switch

A

electrons flow

138
Q

Field

A

an invisible influence capable of exerting a force on a mass or charge

139
Q

energy

A

the capacity to do work

140
Q

Is displacement a scalar or vector?

Is distance a scalar or vector?

A

Displacement- vector

Distance- scalar

141
Q

resistor

A

limits the flow of electrical current

142
Q

Cross product

A

Multiplication of two vectors in 3D space

143
Q

Y values below the x axis

A

negative

144
Q

What does slope of a velocity versus time graph represent?

A

acceleration

145
Q

cos(0)

A

1

146
Q

what do field lines represent

A

current flow

147
Q

Gravity

A

a field that exists between any two objects with mass

148
Q

Mass

A

a measure of an object’s inertia

149
Q

cos(45)

A

sqrt(2)/2

150
Q

Power=

A

IV

151
Q

PE/m is equal to

A

voltage

152
Q

Ideal fluid flow

A

no drag or friction between surfaces or between the molecules themselves

153
Q

velocity at the base of an inclined plane

A

v=sqrt(2gh)

154
Q

do machines change the work done

A

no

155
Q

Non-linear graph

A

non-constant slope

156
Q

magnetic lines flow from

A

north to south

157
Q

positive work

A

by a system, same direction as velocity

158
Q

cardiac output

A

stroke volume X heart rate

159
Q

what is the torque of a force at the center of mass

A

zero

160
Q

zig zag line

A

resistor

161
Q

equations for instantaneous power

A

Pi=Fvcos(theta)

162
Q

Max potential energy of a pendulum

A

At the max height

163
Q

work is energy transfer via

A

force

164
Q

Pedulum

A

any weight attached by a rode, string, wire, etc to a fixed overhead point and capable of freely swinging from side to side

165
Q

resistance

A

drag in fluids or friction between solids

166
Q

what is true of a dipole not signed with the electric field

A

has potential energy

167
Q

semi-conductor

A

solid substance with conductivity between an insulator and most metals

168
Q

Velocity

A

The speed of an object in a given direction

169
Q

1L water is equal to

A

1kg

170
Q

Force down an inclined plane

A

F=mgsin(theta)

171
Q

equation for a point charge electric field

A

F=Kqq/r^2

172
Q

longer line in a battery

A

positive

173
Q

dynamic equilibrium

A

objects in motion at constant velocity

174
Q

examples of equilibrium (5)

A 
terminal velocity
constant velocity
objects at rest
balanced fulcrums
objects floating
175
Q

constant electric fields are most similar to

A

gravity near earth

176
Q

Poiseuille flow

A

exhibits laminar flow and has a leading edge that is parabolic

177
Q

A constant acceleration causes a

A

linear change in velocity

non-linear change in displacement

178
Q

what occurs over a resistor when current flows through it

A

voltage drop

179
Q

negative work

A

on a system, opposite direction as velocity

180
Q

cos(60)

A

0.5

181
Q

Buoyant force

A

the upward force exerted by any fluid upon a body placed in it
Fb=pvg

182
Q

current

A

amount of charge that flow past a fixed point per unit time

183
Q

equipotential lines represent

A

areas of equal voltage

184
Q

Magnetic field
Impulse
Torque

A

Vector

185
Q

Cohesive forces

A

Between molecules of the same substance- tendency to resist separation

186
Q

sin(60)

A

sqrt(3)/2

187
Q

Fluid pressure

A

average force of the molecular collisions per unit area

P=pgh (p is density, h is depth)

188
Q

charge on an electron

A

1.6e-19 C

189
Q

alternating current

A

an electric current that reverses its direction many times a second at regular intervals

190
Q

voltage increases with

A

distance

191
Q

Apparent weight (of a submerged object)

A

the actual weight minus the buoyant force

192
Q

Newton’s third law

A

whenever one object exerts a force (via contact or via a field) on a second object, the second object always exerts and equal and opposite force on the first object

193
Q

work formulas

A

W=deltaE

W=Fdcos(theta)

194
Q

||A|| ||B|| cos(theta)

A

Dot product

195
Q

Acceleration down an inclined plane

A

a=gsin(theta)

196
Q

increasing plate area causes what change to capacitance

A

increases

197
Q

PE(elastic)=

A

1/2kx^2

198
Q

Acceleration

A

any change in velocity (speed or direction)

199
Q

moving electrons cause a

A

magnetic field

200
Q

conservation of charge

A

universe has zero net charge

201
Q

amount of work necessary to move a charge against an electric field

A

voltage

202
Q

Simple Harmonic motion

A

anything that oscillates back and forth and can be represented by a sine wave graphically

203
Q

When are speed and velocity equal?

A

Distance traveled is along a straight line

204
Q

Friction

A

the resistance that one surface or object encounters while moving over another
OPPOSES SLIDING not motion

205
Q

closed system

A

flow of energy, not matter

206
Q

Shape and air resistance

A

less aerodynamic means more air resistance

207
Q

Terminal velocity

A

object has stopped accelerating and the forces of gravity and air resistance are balanced
sqrt((2mg)/CpA))

208
Q

Newton’s second law

A

acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object

209
Q

Velocity and air resistance

A

increased velocity means more air resistance

210
Q

dielectric

A

substance between the two plates in a capacitor

211
Q

when does r=l

A

perpendicular

212
Q

change in energy=

A

q+w

213
Q

motion to the left

A

velocity versus time graph in lower right quadrant

negative velocity

214
Q

conductor

A

allows the flow of electrical current in one or more directions

215
Q

Surface tension

A

intensity of intermolecular forces per unit length at the surface of a liquid

216
Q

“stationary”

A

equilibrium

217
Q

force with a lever

A

F=mg(L1/L2)

218
Q

Fair=mg

A

terminal velocity

219
Q

PE(electrical)=

A

(kqq)/r

220
Q

(r1m1+r2m2+r3m3+…)/mtotal

A

Center of mass

221
Q

changing an electrical field creates

A

magnetic field

222
Q

||A|| ||B|| sin(theta)

A

Cross product

223
Q

Motion to the right

A

velocity versus time graph in upper right quadrant

positive velocity

224
Q

chemical energy

A

energy contained within chemical bonds OR the energy stores due to the separation and/or the flow of electrons

225
Q

capacitors in parallel

A

add directly

226
Q

positive charges in magnetism

A

north poles

227
Q

resistors in series

A

add directly

228
Q

force with hydraulic lift

A

F=mg(h1/h2)=mg(A1/A2)

229
Q

sin(30)

A

0.5

230
Q

Laminar flow

A

flow in a pipe is in concentric sheets, each of which has a different velocity
fastest at the center and slowest at the interface with the wall
@low velocities

231
Q

internal energy

A

internal vibrations and random motions of molecules within a system

232
Q

Bernoulli’s Principle

A

K=P +pgh+0.5pv^2
P- pressure energy, random vibrational energy of molecules
pgh- potential energy
0.5pv^2- kinetic energy

233
Q

Flow rate

A

Q=V*A

use cross sectional area

234
Q

battery in parallel

A

highest voltage battery

235
Q

Change
Work
Speed

A

Scalar

236
Q

current through parallel resistors is related to resistance in what way

A

inverse

237
Q

potential energy stored in a capacitor

A

U=.5QV

238
Q

sin(45)

A

sqrt(2)/2

239
Q

resistors in parallel

A

inverse of the sum of inverses

240
Q

Force with a ramp

A

F=mg(h/d)
h- height
d- hypotenuse

241
Q

Average velocity

A

(Vi+Vf)/2

242
Q

units of power

A

watts (J/s)

243
Q

I=

A

(deltaq)/(deltaT)

244
Q

non-conservative forces cause what energy change

A

kinetic to internal

245
Q

Vector product

A

Cross product

246
Q

Newton’s first law

A

an object at rest stays at rest and an object in motion stays in motion if not acted upon by an imbalanced force

247
Q

ME=

A

KE+PE

248
Q

Vector

A

Has both magnitude and direction

MCAT 1 (10 decks)

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