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AP Physics B > Midterm > Flashcards

Midterm Flashcards

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1
Q

t stands for

A

time

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2
Q

a stands for

A

acceleration

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3
Q

x stands for

A

horizontal displacement

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4
Q

y stands for

A

vertical displacement

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5
Q

Vo stands for

A

initial velocity

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6
Q

Vf or V stands for

A

Final Velocity

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7
Q

g stands for

A

gravity which is 9.81 meters/second squared

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8
Q

Ag stands for

A

acceleration due to gravity

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9
Q

Voy

A

initial vertical velocity

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10
Q

Vox

A

initial horizontal velocity

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11
Q

F stands for

A

Force

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12
Q

Ff stands for

A

Force of Friction

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13
Q

FN stands for

A

Force Normal

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14
Q

Fg stands for

A

Force due to gravity

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15
Q

Fnet stands for

A

The net forces

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16
Q

mu “ weird u looking thing” stands for

A

coefficient of friction

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17
Q

Fapp stands for

A

Force applied

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18
Q

Fax stands for

A

Force due to acceleration in the horizontal direction

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19
Q

Fay stands for

A

Force due to acceleration in the vertical direction

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20
Q

Ac stands for

A

centriphical acceleration

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21
Q

Fc stands for

A

centriphical force

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22
Q

m stands for

A

mass

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23
Q

r stands for

A

radius

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24
Q

T stands for

A

tension

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25
Q

W stands for

A

Work

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26
Q

P stands for

A

Power

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27
Q

K stands for

A

Kenertic energy

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28
Q

h stands for

A

height

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29
Q

u stands for

A

potential gravitational energy

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30
Q

w( omega) stands for

A

angular velocity

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31
Q

a ( alpha) stands for

A

angular acceleration

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32
Q

vectors

A

has magnitude and direction

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33
Q

scalars

A

has magnitude but no direction

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34
Q

elastic collisions

A

two objects collide and break apart into at least two separate objects

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35
Q

inelastic collisions

A

two objects collide and become one object or can be treated as one object

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36
Q

cantilever

A

a beam anchored at only one end. The beam carries the load to the support where it is forced against by moment and shear stress.[1] Cantilever construction allows for overhanging structures without external bracing.

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37
Q

instantaneous velocity

A

the velocity or speed at any given instant of time. this is always changing because speed is always changing

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38
Q

average velocity

A

the average of all the instantaneous velocities recorded

39
Q

uniform acceleration

A

constant velocity

40
Q

apparent weight

A

is a property of objects that corresponds to how heavy an object is. The apparent weight of an object will differ from the weight of an object whenever the force of gravity acting on the object is not balanced by an equal but opposite normal force. By definition, the weight of an object is equal to the magnitude of the force of gravity acting on it.

41
Q

impulse

A

is defined as the product of the average force multiplied by the time it is exerted.[2] Impulse is a vector quantity since force is a vector quantity.

42
Q

momentum

A

mass in motion. any object ( because all objects have mass) that has a velocity has a momentum

43
Q

Henry Cavendish

A

discovered the universal gravitational constant … don’t need to worry about knowing this its on the formula sheet

44
Q

Galileo

A

he discovered kinematics

45
Q

kinetic energy

A

energy in motion

46
Q

potential energy

A

all the energy an object has. the more mass an object has the more potential energy it has

47
Q

displacement

A

the total amount an object moves, it can be forward backward left and right but all these are added up and used to find a length of displacement

48
Q

length

A

the amount an object moves in one direction

49
Q

moment of inertia

A

is the mass property of a rigid body that defines the torque needed for a desired change in angular velocity about an axis of rotation. Moment of inertia depends on the shape of the body and may be different around different axes of rotation.

50
Q

torque

A

is the tendency of a force to rotate an object about an axis,[1] fulcrum, or pivot. Just as a force is a push or a pull, a torque can be thought of as a twist to an object

51
Q

centriphical acceleration

A

is defined as the rate of change of angular velocity with respect to time

52
Q

centriphical forcce

A

Centripetal force is the force acting on the body which makes the body move towards the center of axis of rotation. This force acts along the radius towards the center of the circle.

53
Q

N stands for

A

Newtons

54
Q

Triangle ( delta) stands for

A

change in

55
Q

I stands for

A

moment of inertia

56
Q

Vfx stands for

A

final horizontal velocity

57
Q

Vfy stands for

A

final vertical velocity

58
Q

T stands for

A

Torque

59
Q

Vc stands for

A

centriphical velocity

60
Q

theta stands for

A

angular measurement

61
Q

J stands for

A

Joule

62
Q

W stands for

A

Watt

63
Q

P stands for

A

momentum

64
Q

J stands for

A

impulse

65
Q

Ko stands for

A

initial kenetic energy

66
Q

Kf stands for

A

final kenetic energy

67
Q

Pe stands for

A

potential energy

68
Q

units for time

A

seconds

69
Q

units for acceleration

A

meters/ seconds squared

70
Q

units for velocity

A

meters/ second

71
Q

units for force

A

Newtons

72
Q

units for work

A

Joule

73
Q

units for mass

A

Kilograms

74
Q

units for power

A

Joules / second or watts

75
Q

units for energy

A

Joules or calories

76
Q

units for impulse

A

newtons/ second

77
Q

units for momentum

A

mass times velocity

78
Q

units for omega

A

meters/ second

79
Q

units for alpha

A

meters/ second squared

80
Q

units for circular displacement

A

radians, revolutions, and degrees

81
Q

units for Torque

A

newtons x meters

82
Q

units for moment of inertia

A

Kilograms

83
Q

units for displacement

A

meters

84
Q

what does the slope in a displacement v, time graph represent?

A

the velocity

85
Q

what does the area under the graph in a force v. displacement graph represent?

A

the impulse

86
Q

Newton’s first law

A

the law of inertia. says any object will stay in motion in a straight line at a constant speed. an object will stay at rest as long as not acted by some external force.
conditions for this to be true:
1. the object MUST move at a constant speed
2. the object MUST start at rest

87
Q

Newton’s second law

A

an object will only accelerate if there is a net or unbalanced force acting upon it. The presence of an unbalanced force will accelerate an object - changing its speed, its direction, or both its speed and direction

88
Q

newton’s third law

A

every action has an equal and opposite reaction.

example: you push on the chair and the chair pushed back.

89
Q

angular momentum

A

is the amount of rotation an object has, taking into account its mass and shape. It is a vector quantity that represents the product of a body’s rotational inertia and rotational velocity about a particular axis

90
Q

angular velocity

A

is defined as the rate of change of angular displacement and is a vector quantity which specifies the angular speed (rotational speed) of an object and the axis about which the object is rotating.

91
Q

center of gravity

A

the place of the object where the mass is concentrated and gravity is pulled down. in neat orderly even objects the center of gravity is in the middle in un-orderly objects like human bodies the center of gravity is just above the belly button. the center of gravity is what helps keep objects balanced

92
Q

center of mass

A

is the unique point where the weighted relative position of the distributed mass sums to zero. The distribution of mass is balanced around the center of mass and the average of the weighted position coordinates of the distributed mass defines its coordinates

93
Q

gravitational potential energy

A

is acquired by an object when it has been moved against a gravitational field. In order for an object to be lifted vertically upwards, work must be done against the downward pull of gravity. This work is then stored as gravitational potential energy.

AP Physics B (1 decks)

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