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63 Cards in this Set
- Front
- Back
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Conservation of momentum |
m1v1o+m2v2o=m1v1f+m2v2f |
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Work energy theorum |
1/2mvf^2-1/2mvo^2 |
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RR car collides with a second RR car, what equation is used? |
Conservation of momentum (add the masses) |
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Where's the center of mass on a baseball bat? |
Towards the thicker part of the bat (end) answer C |
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What's the frequency of a wave with a 3 second period? |
f=1/T *1/3* |
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What can't sound waves travel through? |
A vacuum |
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What's the change in f of sound due to more source |
Doppler |
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When temperature increases, particles of air |
Sound faster |
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What's most closely identified with loudness of note |
Amplitude |
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What's beat frequency of 550Hz? |
Add and subtract 2 from the number: 548and552 |
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Characteristics of a convex mirror? |
Small, upright, virtual |
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If you stand 40cm in front of a cosmetic mirror, and the image is 2x the distance, what's the focal length? |
26.67cm, the image is upright and virtual
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What kind of mirror is in the stores/called cosmetic? |
Convex |
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What happens to Di with a convex mirror? |
It's negative |
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When passing through a solid, what happens to the angle of incidence? |
The speed slows down and the angle of refraction bends towards the normal |
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In a convex mirror, what happens to the image when Do is infinity? |
F=Di, therefore the image is at the focal point (f=0) |
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Which type of mirror is lens thicker at the center? |
Convex |
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What colors do TV's have? |
RGB |
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What's the time per wave called? |
Period 1/f |
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When pitch increases, what happens to frequency? |
Also increases |
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When pitch increases, what happens to velocity?
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Stays the same
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When pitch increases, what happens to period?
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Decreases |
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When pitch increases, what happens to Wavelength?
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decreases |
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When pitch increases, what happens to amplitude?
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Stays the same |
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What's resonance? |
Forced vibration that matches an object's frequency
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What waves have the highest frequency? |
Gamma rays |
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What waves haev the lowest frequency? |
Radiowaves |
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EM Spectrum |
RW MW IR VL UV XR GR CR |
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What increases on the EM Spectrum left to right? |
frequency |
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What decreases on the EM Spectrum left to right? |
Wavelength |
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What's the visible spectrum? |
ROY G BV |
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If the electrostatic force is 10N, what happens when it's cut in half? |
Frequency gets 4x greater |
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What's the charge on a micro |
10^-6 |
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What's the potential energy equation? |
PE=mgho |
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What's the kinetic energy equation? |
KE=1/2mv^2 |
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What's the work energy equation? |
W=fd |
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Power equation? |
P=w/t |
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Electric Power equation pt 2 |
P=mv |
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Units of a joule? |
kg x m/s^2 |
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Conservation of energy equation |
mgho + 1/2 mvo^2=mghf + 1/2 mvf^2 |
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Potential difference equation? |
V=w/q |
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Series circuit: 3 things |
Current constant V1+v2=Vt R1+r2+rt |
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Parallel circuit: 3 things |
Voltage constant I1+I2=It 1/Rt=(1/R1+1/R2) |
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Equivalent resistance equation |
1/Rt=( 1/R1+1/R2)
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What is a Coulomb a unit of? |
Charge |
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Coulomb's law |
F=Kq1q2/r^2 |
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What type of energy does a car going up a hill have? |
Kinetic and potential |
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When you multiply velocity x2, what happens to the kinetic energy? |
quadrupled |
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Newton's law |
F=ma |
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Tangential velocity |
Vt=2r(pi)/T |
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Law of elasticity(springs) |
F=kx |
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Rotational inertia |
I=mv^2 |
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Angular momentum |
L=mvr |
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Doppler effect equation |
f=fo(v+vo/v-vs) |
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Index of refraction equation |
n=c/vs |
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Snell's law |
niSin0i=nrSin0r |
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Gravitaitonal force equation |
Fg=Gm1m2/r^2 |
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What's the coulomb constant/the electrostatic constant? |
K=9x10^9 Nm2/C^2 |
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Electric field equation |
E=V/d
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Ohm's law |
I=V/R |
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Unit for Resonance |
Omega |
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Unit for amplitude |
I(A-amps) |
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Magnification |
m=-di/do m=hi/ho |
