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Test your basic knowledge |
MCAT Physics Formulas
Start Test
Study First
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. open pipe frequency
F=nv/2L
Virtual upright
?L=aL?T
U=(1/2)kx^2
2. under content acceleration v^2=
3a=Beta
Vo^2+2a(?x)
Increases
New/old
3. period of pendulum
Force and acceleration
?L=aL?T
2pvL/g
Image is always upright virtual and smaller
4. electrolyte
Solute whose solution is conductive
Internal resistance is zero voltage=emf
Upright image
Incident ray
5. units for capacitance
Fnet=0 thus Fg=Fs mg=kx
Farad 1 F= 1 c/v
Counterclockwise is + clockwise is -
Negative
6. cohesion
Force a molecule of liquid feels toward the other molecules of the liquid
Spreading out of light as it passes through a narrow opening
??=nv/4L
V=IR
7. ? of sound wave=
Slower light will travel
The liquid itself not the object
V/??
Photon energy must be greater than work function of the material
8. momentum
F=E*A
P=m?v
Emf is negative
The shortest wavelength
9. larger the index of refraction..
I=P/A
Slower light will travel
U=1/2QV=1/2CV^2=1/2Q^2/C
Kg*m/s^2
10. force experience by stationary particle in magnetic field
Substance is more dense then water
F=c/?
Surface
None
11. work in electromagnetic field
F=xk=mg
W=qv
When ?=90 b/c sin90=1
Charge/area
12. for photoelectric material to liberate an electron
2
F=xk=mg
K+U=constant
Photon energy must be greater than work function of the material
13. (+) magnification signifies
Upright image
N=c/v
Force and acceleration
Incident light is used to free electrons from a metal
14. thermal expansion of a solid
?L=aL?T
Sin=0 cos=1
Conduction
1/f=1/o+ 1/i
15. Newtons 3rd law of motion
Gamma decay
Equilibrium position
Derive universal gravitation equation
F=- F
16. z in isotopic notation
P=i^2R=V^2/R=IV
700nm -400nm
Number of protons
Frequency
17. frequency in string
F=nv/2L
New/old
3
Difference between the mass of nucleus and the sum of nucleons
18. light bends toward normal when
F=nv/2L
Incident light is used to free electrons from a metal
Solute whose solution is conductive
N2>n1
19. continuity equation*
Resistor
None
VA=V/time and v1A1=v2A2 (fluids will flow more quickly through narrow passages)
Emf is negative
20. relate velocities and displacement 2 ways
N1>n2
Substance is less dense then water
Insulator
V^2=vo^2+2a?x ?x=1/2(vo+v)t
21. Electric Potential equation
MRT
Fs=
V=kQ/r
C=Q/V
22. velocity for a wave
Current*voltage
Surface
V=???
Degree=p/180 radian
23. power is defined as
Rate of doing work
Real image
V/??
373K 100
24. frequency of light given wavelength
P=i^2r
It jumps to higher energy level
Force a molecule of liquid feels toward the other molecules of the liquid
F=c/?
25. capacitors in parallel
Ceq=C1+C2+C3 Veq=V1=V2=V3
Angle of incidence=angle of reflection
V=ED
B=
26. sublimation
MRT
Solid to gas
V=IR
N1>n2
27. force due to electric field on single charge
C=e(A/d)
2pvm/k
Beta=
E=neE n is excess charge
28. electric work
Is equal to gravitational force
Electric fields of all the light waves are oriented in the same direction
Beta=
U=q?v
29. reflection law
Substance is less dense then water
I=P/A
Q=mc?t
Angle of incidence=angle of reflection
30. increase in velocity of a fluid is associated with
Neutron is converted into a proton and an electron is emitted
Zero resistance
Decrease in pressure that fluid exerts on the walls of the container
2pvm/k
31. closed pipe wavelength
C=e(A/d)
Irms=Imax/v2
???
?=4L/n
32. equation for v between two parallel plates
X=(initial horizontal v)(time in air)
?x=1/2(v+vo)t
V=ED
Increases
33. calculate binding energy
(mass defect)(speed of light)^2
Virtual
F=Gm1m2/r^2
Rate of doing work
34. angular frequency of spring ?
Charge remains constant
E=V/d
?=vk/m=2p??
273K 0
35. under constant acceleration - v=
Image is always upright virtual and smaller
Vo+at
U=(1/2)kx^2
Intensity
36. relate focal length and radius of curvature(r)
New/old
When in parallel
Q=CV
F=r/2
37. find energy in circuit
Incident light is used to free electrons from a metal
A sin?=n?
P=IV
E=Pt
38. 90
Increases
Pascal (Pa) N/m^2
Sin=1 cos=0
J=Force*Time=mv - mvo=?p
39. suppose a block is floating in H2O - What does this mean
E=1/2k(A^2)
Buoyant force equals blocks weight
W=mg=?Vg
Makes ?G more negative thus more spontaneous
40. plane mirrors create What type of image
1/2mv^2
Equilibrium position
Vo^2+2a(?x)
Virtual
41. centripetal acceleration
Dispersion
F=nv/2L
A=v^2/r
F=- F
42. find factor by which something has been changed
New/old
Negative
20 Hz to 20 -000 Hz
2pvm/k
43. adhesion
Force applied parallel to objects surface
WATTS
Work/time
Force a molecule of liquid feels toward molecules of some other substance
44. What is displacement equation
Q=mc?t
Insulator
700nm -400nm
?x=1/2(v+vo)t
45. wavelength in string
P=IA
?=2L/n
N=c/v
When in parallel
46. magnetic force
When in parallel
Counterclockwise is + clockwise is -
None
F=qvBetasin?
47. planet orbiting a star - centripetal force
Is equal to gravitational force
Light emitted due to heat
V=???
More malleable material
48. focal for spherical mirrors
Vbulk modulus
F=nv/2L
F=1/2(r)
373K 100
49. electric flux
It jumps to higher energy level
?=2L/n
373K 100
F=E*A
50. meaning of Bernouili's equation
F=mv^2/r
F=c/?
1000 kg/m^3 or 1 g/cm^3
As speed of fluid increases pressure and potential energy decrease