Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Biophysics > Extra Equations Not on Sheet > Flashcards

Extra Equations Not on Sheet Flashcards

1
Q

What are SI units for length?

A

Metres

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are SI units for mass?

A

Kilograms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are SI units for time?

A

Seconds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are SI units for temperature?

A

Kelvin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are SI units for electrical current?

A

Ampere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are SI units for substance amount?

A

Moles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are SI units for charge?

A

C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are SI units for resistance?

A

Ohms (special symbol) which is V/A

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are SI units for electrical potential difference?

A

V

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are SI units for equivalent dose?

A

Sv which is J/Kg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are SI units for pressure?

A

Pa which is 1 N/m2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are SI units for volume?

A

m3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are SI units for velocity?

A

m/s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are SI units for acceleration?

A

m/s2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are SI units for force?

A

N

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are SI units for energy, work/ heat?

A

J which is N/m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are SI units for power?

A

W

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are SI units for capacitance?

A

F which is C/V

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What are SI units for absorbed dose?

A

Gy which is 1J/Kg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What are SI units for effective dose?

A

Sv which is J/Kg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Density

A

p = m/V

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Gauge Pressure

A

Pg= P - Pa is actual pressure inside the vessel take atmospheric pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Tension Force

A

T + Fb = mg tension force plus buoyant force must equal the downward force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

For every action there is an equal and opposite reaction, force is an interaction between two objects

A

Fab = Fba

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What can you use to add vectors?
Tip to tail method or Pythagoras a2 + b2 = c2
26
Sedimentation
The net force downward is mg - Fb - D where D is the drag force due to viscosity of the fluid. Therefore increasing velocity increase drag force and slows the particle down, so bigger particles fall faster, eventually every particle reaches a terminal speed
27
Change in kinetic energy
deltaKE = W change in kinetic energy is work done on the object
28
First, second and third class levers
First: Force down, fulcrum, weight (head) Second: Force up, weight, fulcrum (foot) Third: Weight, force up, fulcrum (arm)
29
The mechanical advantage
R(Fp)/r (mg)= mechanical advantage, the mechanical advantage of a simple pulley is 2T = mg, you still have to exert the same force to lift the object but you are pulling instead of pushing
30
The speed of an object in circular motion
v =2.Pi.r/T the speed of an object in circular motion is the circumference/ over the time it takes for one revolution
31
No. of G's
a/9.8 = the number of gravities created by the force/acceleration of the circular motion. This is used to amplify g in sedimentation (i.e. centrifuges)
32
How to find elastic potential energy
Force over extension graph, elastic potential energy is under the line
33
Boyle's Law, pressure and volume relationship
P1V1 = P2V2 they are proportional when temperature is constant
34
Charle's Law, volume and temperature relationship
V1/V2 = T1/T2, volume of gas increases linearly with temperature for a fixed amount of gas
35
Temperature, pressure and volume relationship
P1V1/T1 = P2V2/T2 When the volume is constant pressure is proportional to temperature
36
Number of moles
n = M/m number of moles is mass over molar mass
37
Number of atoms
6.022x10^23 molecules/mole
38
Energy equivalence of oxygen
1 L of O2 is used for 20.2KJ of energy
39
Osmotic pressure
PI = (n/v)RT no. mol. solute per volume by the universal gas constant by temperature
40
1 Kcal
1.186 J of work
41
Rate of convection
delta Q/ delta t = hA delta T constant h by the surface area by the temperature difference
42
Internal energy of a system
delta U = Qin - Wout
43
Isothermal process
delta T is zero therefore delta U is zero and the energy in is the work out
44
Adiabatic process
Qin is zero and therefore delta U is -ve Wout
45
Current
I = delta Q / delta t, number of charges per time
46
Equilibrium Potential (Nerves)
Eion = RT/F .ln Ion o/ Ion i flip ions for Cl
47
Nernst equation
Ek = 60log. Ion o/ Ion i
48
Cell potential GHKE
Vm = RT/F .ln. pK(Ko) + pNa(Nao) + pCl(Cli) / pK(Ki) + pNa(Nai) + pCl(Clo)
49
Speed of wave
c = lambda f which is wavelength by frequency
50
Velocity of wave
v is proportional to lambda/T which is wavelength over time
51
Doppler effect
I is proportional to I/r^2 Intensity of sounds diminishes with distance
52
First, Second, Third harmonic open-ended First, Third, Fifth harmonic closed one end Closed both ends
Refer to sheet
53
Difference between real and virtual images
A real image has light passing through it and a virtual image is inverted and would not show up on a piece of paper at that point, this would happen if an object is placed at a distance less than or equal to f
54
Oscillations across two mediums
f1 = f2 frequency and oscillations must continue across a medium
55
An object at the focal point or far point
Di appears infinite
56
Combining lenses
1/fcom = 1/fa + 1/fb
57
Mass number
A = N + Z X element has A top left hand and Z bottom left hand
58
Protons
Z
59
Neutrons
N
60
Alpha decay
A-4 Z-2 + a an alpha particle is 2 protons and 2 neutrons
61
Beta decay plus
Z-1Y + beta +1 + v p+ is a n B+1 + v
62
Beta decay minus
Z+1Y + beta -1 + v n is a p+ + B-1 + v
63
Gamma decay
Excited atom loses energy, no change to protons or neutrons
64
Number of decays
N x probability of decay which is lambda.N.delta t
65
Number of photons removed
delta N = -micron N0 delta t the number of photons removed is the linear attenuation coefficient by the initial no. by the delta thickness
66
Radiation intensity
Intensity is I0 / R^2

Biophysics (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions