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Section 1

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linear (regular) velocity

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Physics

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Mar 1, 2020

Cards (96)

Section 1

(50 cards)

linear (regular) velocity

Front

v = rω

Back

Period

Front

seconds / cycles

Back

escape velocity

Front

V = √(2GMₑ / rₑ)

Back

How to find the velocity or position of a mass in a spring-mass system:

Front

1/2kx² = 1/2mv²

Back

Open Tubes

Front

Back

angular momentum is

Front

L=Iω kg⋅m²/s L= τΔt conserved when there is no net external torque acting on the object

Back

How to find the work/KE of a block being pulled at an angle:

Front

F(cos θ) • d = work = ΔKE

Back

How to find the velocity of a two-block-pulley system hung over a pulley on an incline:

Front

Mgh = 1/2(M +m)v² + µmgcosθ + mgh(sinθ)

Back

Velocity

Front

v = rω

Back

Hooke's Law

Front

F=-kx

Back

centripetal force

Front

F = mV² / r pretty much m(rω)² / r

Back

The Second Condition of Equilibrium states

Front

The net external torque must be zero, UNLESS it has an angular acceleration Στ = 0

Back

Moment of Inertia

Front

I = mr² kg•m²

Back

Transverse waves

Front

A wave in which the particles of the medium move perpendicularly to the direction the wave is traveling

Back

Finding the Period of a Spring

Front

T = 2π√(m/k)

Back

Finding Period of a Pendulum

Front

T = 2π√(l/g)

Back

Longitudinal waves

Front

a wave in which the particles move parallel to the path of the wave (sound)

Back

Acceleration

Front

a = αr

Back

Conservation of Energy (simple harmonic motion)

Front

½kA² = ½mv² + ½kx²

Back

Rotational Kinematics

Front

Back

Closed Tubes

Front

Back

Newton's Second Law Torque Equation

Front

τ = Iα N•m

Back

Acceleration of an object in space

Front

a = GMₑ / rₑ²

Back

Resonance

Front

A phenomenon that occurs when two objects naturally vibrate at the same frequency

Back

Doppler effect

Front

The Doppler effect states that when a source is moving relatively toward an observer, there is an apparent increase in frequency. If the relative motion is away from source or observer, there is an apparent decrease in frequency.

Back

Frequency

Front

F = 1/T or cycles/second

Back

Conservation of Momentum Example

Front

With hands and feet drawn closer to the body, the skater's angular speed increases - L is conserved, I decreases, ω increases

Back

Kepler's Third Law

Front

T² = (4π² / GMe)r³

Back

omega / tangential velocity

Front

ω / Vt = 2π rev. / time

Back

How to find the net work of a block moving up an incline with friction:

Front

(F - Fr - mgsinθ) • d = net work

Back

Torque

Front

τ = r F sin θ N•m τ = ΔL / Δt

Back

Rotational Kinetic Energy

Front

KEr = ½Iω² J

Back

Orbital Velocity

Front

v = √(GMₑ/ r)

Back

How to find the velocity of a two-block-string system hung over a pulley:

Front

M₂gh = M₁gh + 1/2(M₂+M₁)v²

Back

Wavelengths

Front

Back

How to find the velocity of an object falling from a certain height:

Front

Δmgh = Δ 1/2mv²

Back

Finding the Velocity of a Wave

Front

V = √((T)/(M/L)) V = λf

Back

Gravitational field strength

Front

g = Gm / r²

Back

centripetal acceleration

Front

Ac = V² / r pretty much (rω)² / r

Back

angular acceleration

Front

α = Δω/Δt α = τ / I

Back

Newton's Universal Law of Gravitation

Front

F = G M₁M₂ / r²

Back

Finding the Velocity in Simple Harmonic Motion

Front

V = ±√((k/m)(A² - x²))

Back

Acceleration in Simple Harmonic Motion

Front

a = -ω²Acosωt

Back

Horizontal Displacement in Simple Harmonic Motion

Front

x = acos(2πft)

Back

Velocity in Simple Harmonic Motion (Equation)

Front

v = -ωAsinωt

Back

Work-energy theorem

Front

W = ΔKEt + ΔKEr + ΔPEn J

Back

Pink String Lab Equation

Front

f²λ² = T • 1/μ

Back

Work is

Front

force (F) times parallel displacement (d) Work = KE + PE

Back

coordinates of center of gravity

Front

x = Σmx / m y = Σmy / m

Back

Sound is

Front

a longitudinal mechanical wave

Back

Section 2

(46 cards)

Where is the acceleration always greatest?

Front

at the ends of motion

Back

if a car with a siren is traveling towards another car that is moving away from the first car,

Front

the distance between the two does not matter. It depends on the velocity of the first car

Back

Parallel Circuits

Front

- resistors in parallel experience the same voltage ~ V = V₁ = V₂ - total current is all the currents added up ~ I = I₁ + I₂ - resistance in parallel is: ~ 1/R = 1/R₁ + 1/R₂

Back

constructive interference

Front

When two pulses with upward displacement combine to make a pulse with a displacement larger than that of either original pulse (equal to the numerical sum of these pulses).

Back

Newton's Third Law

Front

For every force, there is an equal but opposite force on the object causing the original force.

Back

How to find the wavelength for open tubes or standing waves:

Front

λ = 2L / n

Back

Finding the Speed of Sound with Temperature

Front

V = (331)√(Temp./273)

Back

How to find μ:

Front

Fғ / Fɴ ~ friction force divided by normal force

Back

How to find a resistance of something

Front

R = ρL / A

Back

To find the power

Front

P=IV P = E / t P = I²R P = V² / R joules / second

Back

How to find the frequency for closed pipes:

Front

f = n⋅v / 4L

Back

Things that cannot go on a free-body diagram:

Front

motion, centripetal force, mass, velocity, acceleration, inertia, ma

Back

standing wave

Front

a wave in which incident and reflected waves combine to produce a wave that appears to be "standing" in one place

Back

Where is the velocity always greatest?

Front

at the middle part of motion

Back

Impulse-Momentum Theorem

Front

FΔt = mΔv

Back

destructive interference

Front

When a pulse with upward displacement and a pulse with downward displacement combine to make a pulse with a smaller displacement than either original pulse (equal to the numerical difference of these pulses)

Back

beats

Front

When two sound waves interfere, the regions of constructive and destructive interference produce the phenomena known as BEATS. The number of beats per second is equal to the frequency difference.

Back

How to find the frequency for standing waves in strings and open pipes:

Front

f = n⋅v / 2L

Back

Open Pipe and Standing waves in Strings Frequency Equation

Front

f = n • v / 2L

Back

Ohm's Law

Front

V=IR

Back

Closed Pipe Frequency Equation

Front

f = n • v / 4L

Back

Junction rule

Front

the total current coming into a junction must be equal to the total current leaving the junction (charge is conserved)

Back

when two sound waves interfere,

Front

the regions of constructive and destructive interference produce beats

Back

Law of Sines

Front

a/sinA = b/sinB = c/sinC

Back

How to find theta

Front

tan⁻¹(y/x)

Back

electromagnetic waves

Front

waves that result from electromagnetic interactions (light, x rays, radio waves, etc) - don't require a physical medium to carry them

Back

Series Circuits

Front

- current is the same across the whole current ~ I = I₁ = I₂ - total voltage is all the voltages added up ~ V = V₁ + V₂ - total resistance is all the resistances added up ~ R = R₁ + R₂

Back

coloumb's law

Front

F = k q₁q₂ / r²

Back

How to find displacement on a velocity time graph

Front

It is the area under the graph

Back

mechanical waves

Front

waves that result from the vibration of a physical medium (drum, string, water, etc)

Back

Conservation of momentum

Front

m₁vᵢ + m₂vᵢ = m₁vғ + m₂vғ

Back

the loop rule

Front

the total voltage drops and gains must total to zero as you travel around any closed loop of a circuit (energy must be conserved) Traveling across a resistor with the current is a voltage drop, against the current a gain. Traveling across a battery from negative to positive is a voltage gain and from positive to negative is a voltage drop.

Back

displacement

Front

Distance of a line connecting two points

Back

How to find the max height of an object launched at an angle

Front

Yᴍᴀx = Vᵢᵧ² / 2g

Back

Conservation of Kinetic Energy

Front

½m₁vᵢ² + ½m₂vᵢ² = ½m₁vғ² + ½m₂vғ²

Back

How to find the wavelength for closed tubes:

Front

λ = 4L / n

Back

Law of Cosines

Front

c²=a²+b²-2abcosC

Back

Newton's first law

Front

Every body continues in its state of rest, or of uniform motion in a straight line, unless it is compelled to change that state by forces acting on it. inertia: The ability of an object to resist a force attempting to change it's state of motion

Back

inelastic collision

Front

To colliding objects stick together to become one; momentum is conserved, but kinetic energy is not

Back

amplitude of the wave is

Front

the intensity of loudness of the wave

Back

elastic collision

Front

Two objects collide and conserve kinetic energy and momentum; objects bounce off each other

Back

antinodes are

Front

constructive interference

Back

nodes are

Front

destructive interference

Back

Newton's second law

Front

The change of motion is proportional to the net applied force, and is in the direction in which that force acts. F = ma

Back

Friction

Front

Fᴋ = μN

Back

Kinematics equations cannot be used when:

Front

the acceleration is not constant. ~ cannot be used in a spring-mass situation because the mass does not have a constant acceleration (acceleration is always changing)

Back