MCAT Physics
Terms
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- Ohm's Law
- V=IR
- Voltage for a paralell circuit
- Vt=V1=V2
- Voltage for a series circuit
- Vt=V1+V2+Vn...
- Resistance in a parallel circuit
- 1/Rt=1/R1+1/R2
- Resistance in a series circuit
- Rt=R1+R2
- Current in a series circuit
- It=I1=I2
- Potential Difference
-
V=W/Q
work/unit charge - Electric Field
-
E=F/Q
force/unit charge - Coulomb's law
- F=KQ1Q2/rsquared
- Index of refraction
- n=sintheta1/sintheta2
- Focal length of a spherical mirror
- F=R/2
- Huygen's Principle
- each pt. on a wave front may be regarded as a new source of disturbance
- Telescope magnification
- m=fo/fe
- Magnification
- m=id/od
- Lens equation
- 1/id+1/od=1/f
- Snell's Law
- n1sintheta1=n2sintheta2
- Liquid Pressure
- p=hdg
- Solid Expands
- ∆L=Lc∆T
- Work eq. for a spring
- W=1/2Kxsquared
- Hooke's Law
- F=-Kx
- Momentum
- P=mv
- Power
- P=W/t=Fd/t
- Coefficient of Friction sliding
- mew=Ff/N
- Kinetic Energy
- Ke=1/2mvsquared
- Potential Energy
- Pe=mgh
- Work
-
W=Fd
force times distance moved - Newton's Law of Gravitation
- F=Gm1m2/rsquared
- Average Velocity
- V=(Vi+Vf)/2
- Final Velocity
-
Vf=Vi+at
Vf=(visquared+2as)to the 1/2 - Distance
- S=vi+1/2atsquared
- Acceleration
- a=(V2-V1)/(t2-t1)
-
Newton's Law of Gravitation
(in words) - 2 bj. attract eachother w/ a force that is portional to the product of their masses and INVERSELY proprtional to the square of the distance between them
- Centripetal force
- inward force that must be applied to keep a body moving in a circle
- Centripetal Acceleration
- a=vsquared/r
- Archimede's principle
- loss in weight of an obj. immersed in a fluid equal the weight of fluid displaced
- Bernoulli's Principle
- greater the velocity of a fluid the smaller the pressure
- Longitudinal wave
-
vibrationjs parallel to direction of propogation
-sound waves - Doppler effect
- when there is relative motion btwn a sourceof a wave and an observer, the frequency of vibrations received by the observer increases if the source and observer approach one another and decreses when they seperate
- Law of reflection
- when a wave is reflected the angle o fincidence equals the angle of reflection
- Focal length
- f=R/2
- Refraction
- bending of a wave on going into a second medium
- Critical angle
- limiting angle of incidence in the optically denser medium that results in an angle of refraction of Ëš90
- Polarized light
- light whose direction of vibration has been restricted into one plan of vibration
- Virtual image
- image formed by the eye and brain which cannot be projected on a screen
- Magnetic Field
- region where a megnetic influence can be detected as a force on a magnet
- Electromegnetic Strength
-
1)# of trns in the coils of a solenoid
2)nature of the core
3)current through the core