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MCAT Physics Formulas

Subjects : mcat, science

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. diffraction
Emf is positive
When velocity of the fluid exceeds critical velocity
Spreading out of light as it passes through a narrow opening
F=- kx

2. units for newtons
Holds whenever we have a change in energy ?E=?KE+?PE=0
Kg*m/s^2
Fluid resistance to flow
F=r/2

3. What is an electron volt (eV)
Energy gained by particle with charge of e when moved through one volt
The shortest wavelength
Derive universal gravitation equation
E=1/2k(A^2)

4. thermal expansion of a solid
Wave speed
P=IV
E=neE n is excess charge
?L=aL?T

5. speed of sound in proportional to...
Sin=v3/2 cos=1/2
N2>n1
Vbulk modulus
Yield strength

6. intensity of sound
U=q?v
I=P/A
F/A
A sin?=n?

7. point of shape change beyond which a material can go back to normal
Voltage
20 Hz to 20 -000 Hz
?=2L/n
Yield strength

8. cohesion
More malleable material
Longitudinal
Force a molecule of liquid feels toward the other molecules of the liquid
Amount of energy required for phase change from solid to liquid

9. dynamic pressure
(1/2)?v^2
Surface
Sin=1 cos=0
Sin=0 cos=-1

10. only radioactive decay that conserves the nucleus charge
Gamma decay
Splitting of atomic nuclei
Degree=p/180 radian
273K 0

11. a lightbulb in a circuit is a
Yield strength
Resistor
Diopters
E=1/2k(A^2)

12. large moduli value
F=ma
More malleable material
More rigid material
Perpendicular to each other

13. 60
Mass
Pressure to move - voltage when no charge is moving between 2 terminals
Sin=v3/2 cos=1/2
V=???

14. when spring is at rest
Ampere (1C/s)
Fnet=0 thus Fg=Fs mg=kx
Spreading out of light as it passes through a narrow opening
Difference between the absolute and atm pressure Pg=P- Patm

15. Log(100)=
2
V=???
N=c/v
Splitting of atomic nuclei

16. units for power of a lens
U=1/2QV=1/2CV^2=1/2Q^2/C
Diopters
E=kQ/r^2
F=- kx

17. What does atoms atomic weight represent
N*s/m^2
Weighted average of the masses of the element
??=nv/4L
E*r

18. unit for energy beside J
?L=aL?T
Splitting of atomic nuclei
J=Force*Time=mv - mvo=?p
EV

19. photoelectric effect
T=rFsin?
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
Incident light is used to free electrons from a metal
Wave speed

20. pressure
It jumps to higher energy level
F/A
20 Hz to 20 -000 Hz
Q=mc?t

21. period of pendulum
P=1/f
1/2mv^2
2pvL/g
Photon energy must be greater than work function of the material

22. calculate binding energy
Sin=v3/2 cos=1/2
No net force acting on it
Conductor
(mass defect)(speed of light)^2

23. amplitude of spring is proportional to...
Bigger and beyond original object
Solute whose solution is conductive
Force and acceleration
Proton or neutron

24. work as product of pressure and volume change
W=Fdcos?
(Vo+v)/2
F1/A1=F2/A2
Charge/area

25. degrees to radians
Degree=p/180 radian
Intensity
Frequency
Incident light is used to free electrons from a metal

26. charge of beta particles
MRT
Low voltage to high voltage
3
Negative

27. units for power
P1+?gy of 1 + 1/2?v^2 of 1=P2+?gy of 2 + 1/2?v^2 of 2
?=vk/m=2p??
WATTS
Negative

28. frequency of light given wavelength
F=c/?
F=nv/2L
P=i^2r
Vsin?

29. fungal cells unlike animals cells do not contain
F=xk=mg
V=IR
W'=?E=?KE+?U
Centrioles

30. resistance in parallel
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
V=kq/r
Will never decrease capacitance
More flow less resistance

31. ?
M1v1=m2v2
Charge/length
Ceq=C1+C2+C3 Veq=V1=V2=V3
J=Force*Time=mv - mvo=?p

32. 45
No image is formed
Buoyant force equals blocks weight
Resistor
Sin=v2/2 cos=v2/2

33. magnitude of magnetic field for current carrying wire
V=?A
Beta=
Slower light will travel
P=i^2r

34. -Beta- decay
F=nv/2L
Virtual upright smaller
Neutron is converted into a proton and an electron is emitted
I=?q/?t

35. electric field maximum of insulating sphere
Surface
Solute whose solution is conductive
273K 0
Req=R1+R2+R3 Veq=V1+V2+V3

36. light ray that strikes a surface
0K -273
Negative
Incident ray
Resistor

37. parabolic mirror: image at focal point
No image is formed
I=P/A
Degree=p/180 radian
The shortest wavelength

38. Hooke's Law
Fusion
N is proportional to 1/?
F=- kx
Vo+at

39. weight
Force a molecule of liquid feels toward the other molecules of the liquid
Buoyant force equals blocks weight
W=mg=?Vg
N1>n2

40. Log(1000)=
Equilibrium position
N2>n1
Virtual upright
3

41. force experienced by moving charge traveling parallel or antiparallel to magnetic field
Points away from + and toward -
Energy gained by particle with charge of e when moved through one volt
Resistor
None

42. splitting of white light in a prim is an example of...
It is halved
Dispersion
Conductor
J=Force*Time=mv - mvo=?p

43. boiling point of H2O in K and C
None
373K 100
Resistor
Increase length increase resistance

44. equation for capacitance with dielectric
3a=Beta
I=?q/?t
F=qvBetasin?
C=eoKA/D

45. In what position does spring has its greatest speed
U=q?v
Equilibrium position
T=rF where F is proportional to mass and r is distance from pivot
More flow less resistance

46. When is voltage constant across capacitors
Fusion
Conduction
When in parallel
None

47. work done by non conservative force

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48. formula for heat gained or lost during phase change
Q=mL
T=1/f
N=c/v
F=nv/2L

49. process of combing smaller nuclei to create larger nuclei
Frequency
Fusion
Fk=
W=qv

50. equation relating heat gained and temperature change
Weighted average of the masses of the element
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Q=mc?t
1/Ceq=1/C1+1/C2+1/C3 Veq=V1+V2+V3