Test your basic knowledge |

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. for object in SHM E=
Hydrostatics
F=qvBetasin?
Solid to gas
K+U=constant

2. larger the index of refraction..
Q=mc?t
Q=CV
Charge remains constant
Slower light will travel

3. body in translational equilibrium
A sin?=n?
Gas to solid
No net force acting on it
Pascal (Pa) N/m^2

4. angular frequency of spring ?
EV
No image is formed
B=
?=vk/m=2p??

5. When does turbulence in a fluid arise
More flow less resistance
C=Q/V
Substance is less dense then water
When velocity of the fluid exceeds critical velocity

6. index of refraction (n) equation
N=c/v
(mass defect)(speed of light)^2
Number of protons in nucleus
Longitudinal

7. deposition
W'=?E=?KE+?U
Incident ray
Gas to solid
E=kQ/r^2

8. capacitance of simple parallel plate (not according to Ohms)
???
C=e(A/d)
Substance is more dense then water
I=?q/?t

9. speed of the spring
V=?A
Force a molecule of liquid feels toward the other molecules of the liquid
Q=CV
Negative

10. reflection law
Insulator
Fk=
Angle of incidence=angle of reflection
Zero resistance

11. 'real' side of a lens
Force a molecule of liquid feels toward molecules of some other substance
When in parallel
2pvL/g
Side opposite From which light originates

12. power is defined as
Rate of doing work
I=P/A
U=(1/2)kx^2
Y=(F/A)/(?L/L) stress over strain

13. negative charge moves spontaneously from
Pressure to move - voltage when no charge is moving between 2 terminals
Low voltage to high voltage
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
U=1/2QV=1/2CV^2=1/2Q^2/C

14. across capacitor what remains constant
T=rFsin?
Splitting of atomic nuclei
Voltage
Approx .7

15. work done by non conservative force

16. gravitational force formula
Moving charge
Wave speed
F=Gm1m2/r^2
W=qv

17. current of AC
U=q?v
Voltage
C=eoKA/D
Irms=Imax/v2

18. continuity equation*
W'=?E=?KE+?U
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Difference between the mass of nucleus and the sum of nucleons
Number of protons

19. force due to electric field on single charge
E=neE n is excess charge
?=2L/n
Voltage
F1/A1=F2/A2

20. wavelength in string
Amount of energy required for phase change from solid to liquid
?=2L/n
U=1/2QV=1/2CV^2=1/2Q^2/C
P=IA

21. image created when converging (concave) mirror when object is placed beyond focal point
Real inverted image
None
Substance is less dense then water
Upright image

22. electromotive force
Virtual upright smaller
Is equal to gravitational force
V^2=vo^2+2a?x ?x=1/2(vo+v)t
Pressure to move - voltage when no charge is moving between 2 terminals

23. point of shape change beyond which a material can go back to normal
No image is formed
F=nv/2L
Yield strength
Constant for closed system independent of changes in area

24. When is voltage constant across capacitors
When in parallel
N1>n2
Solid to gas
T=rF where F is proportional to mass and r is distance from pivot

25. energy of a photon is dependent on...
Frequency
Charge remains constant
Coulomb=amphere*sec
Constant for closed system independent of changes in area

26. ? of sound wave=
Number of protons
V/??
R=pL/A
C=Q/V

27. units for viscosity
F=mv^2/r
Number of protons
Mass
N*s/m^2

28. 60
U=1/2QV=1/2CV^2=1/2Q^2/C
Sin=v3/2 cos=1/2
Buoyant force equals blocks weight
Vot+1/2at^2=(V0+v/2)t

29. difference between Calorie and calorie
A Calorie is a nutritional term equal to 1000 calories
I=P/A
Voltage
Force a molecule of liquid feels toward the other molecules of the liquid

30. energy stored in capacitor
Sin=v3/2 cos=1/2
Slower light will travel
Vo^2+2a(?x)
U=1/2QV=1/2CV^2=1/2Q^2/C

31. force experience by stationary particle in magnetic field
3
Light emitted due to heat
Inverted image
None

32. beat frequencies for two frequencies differing by 4 Hz
(Vo+v)/2
N1>n2
Bigger and beyond original object
4 Hz

33. total horizontal distance traveled by projectile
Decrease in pressure that fluid exerts on the walls of the container
X=(initial horizontal v)(time in air)
0K -273
(mass defect)(speed of light)^2

34. object placed beyond focal point in converging lens create What type of image
Intensity
(mass defect)(speed of light)^2
Pressure to move - voltage when no charge is moving between 2 terminals
Real inverted

35. Log(1000)=
Light emitted due to heat
3
Current*voltage
image/object

36. dielectric material
It is halved
MRT
Will never decrease capacitance
Virtual upright smaller

37. power of sound wave
1/Req=1/R1+1/R2+1/R3 Veq=V1=V2=V3
P=IA
W=qv
Force a molecule of liquid feels toward the other molecules of the liquid

38. boiling point of H2O in K and C
Increase length increase resistance
Vo^2+2a(?x)
W=Fdcos?
373K 100

39. under what conditions will light undergo total internal reflection
Q=CV
E=1/2k(A^2)
Mass number
Light travels from high n to lower n with an angle of incidence greater than the critical angle

40. sublimation
Real inverted
C=Q/V
Solid to gas
Cohesion

41. freezing point of H2O in K and C
Energy required to free electron from given metal
273K 0
Force a molecule of liquid feels toward molecules of some other substance
Work/time

42. frequency of spring is inversely proportional to...
Mass
Degree=p/180 radian
Resistor
Charge/length

43. Bernoulli's equation
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
Sin=1/2 cos=v3/2
Perpendicular to each other

44. when unlike charges move away from each other - U of the system
Vbulk modulus
Increases
Force a molecule of liquid feels toward the other molecules of the liquid
image/object

45. thermal expansion of a solid
E=neE n is excess charge
F=r/2
Decrease in pressure that fluid exerts on the walls of the container
?L=aL?T

46. electric work
Substance is more dense then water
Ceq=C1+C2+C3 Veq=V1=V2=V3
T=rFsin?
U=q?v

47. under constant acceleration - two ways ?x=
No image is formed
Vot+1/2at^2=(V0+v/2)t
0K -273
Points away from + and toward -

48. electric field equation
Energy of electrons
F=mv^2/r
E=kQ/r^2
Increase length increase resistance

49. material with moderate resistance
Rate of doing work
C=e(A/d)
Points away from + and toward -
Resistor

50. increase in velocity of a fluid is associated with
F=mv^2/r
Pascal (Pa) N/m^2
Decrease in pressure that fluid exerts on the walls of the container
Diopters