Biophysics 1

Front 1

What is the difference between physics and biophysics?

Back 1

Physics is the study of matter and its movement through space time. Biophysics is an interdiciplinary science. Uses methods of physics and physical chemistry to study biological systems.

Front 2

What is Condensed matter physics?

Back 2

Deals with macroscopic physical properties of matter.

Front 3

Name the branch of physics which relates to the study of matter, matter and light, matter interaction on the scale from a single to a few electrons.

Back 3

Atomic, molecular and optical physics

Front 4

Give another name for high energy physics?

Back 4

Particle physics

Front 5

What is high energy physics?

Back 5

Elementary constituents of matter and energy and the interaction between them.

Front 6

Name the branch of physics which involves stellar structure, stellar evolution and the origin of the solar system?

Back 6

Astrophysics

Front 7

Name four important facts about scientific method?

Back 7

1. It tests the validity of physical theory.

2. Uses the methodical approach.

3. Comparison of implications of the theory in question with associated conclusions.

4.Drawn from experiments and observations conducted to test it.

Front 8

Theories which are very well supported by data and have never failed any component emperical test are called what?

Back 8

Scientific laws/natural laws

Front 9

What are the four ingredients of Shrodinger's cat recipe?

Back 9

1. Cat

2. Flask of poison

3. Radioactive atom

4. Geiger counter

Front 10

Where are these ingredients placed?

Back 10

Sealed well shielded box2

Front 11

What is the relevance of the Geiger counter?

Back 11

The Geiger counter detects radiation the flask of poison has been shattered and the cat is dead. If not the cat is still alive.N

Front 12

Name the two states that the radioactive particle can be in? In which of these is the cat dead and which alive?

Back 12

In the state of location - live cat

In state of motion - dead cat

Front 13

What does the fact of observation observe?

Back 13

The quantum state of the atom and whether the cat is alive or dead

Front 14

What does SI unit stand for?

Back 14

systeme internationale d'unites

Front 15

Name the 7 basic units

Back 15

length - m

mass - kg

time - s

electric current - ampere

luminous intensity - cd

amount of substance - M

Thermodynamic temperature - K

Front 16

What does the Newton measure

Back 16

Absolute unit of force. Force required to provide a mass of 1kg with an acceleration of 1m/s

Front 17

Name the unit which equals the amount of work done by a force of one newton acting through one meter.

Back 17

Joule

Front 18

The watt is equal to one joule of work performed per what?

Back 18

second

Front 19

Define Volt

Back 19

unit of electrical potential difference between two points in a conductor carrying one amphere current when the power dissipated between the points is one watt.

Front 20

Which unit is the power it takes to move 33,000 pounds one foot in one minute

Back 20

Horse power

Front 21

What is the difference between luminous flux and radiant flux.

Back 21

Luminous flux is a measure of the power of light perceived by the human eye.

Radiant fulx is the measure of the total power of light.

Front 22

Describe Lux

Back 22

It is the SI unit of illumination.

It is the amount of illumination provided when one lumen is evenly distributed over an area of one meter square.

Front 23

Name the theoretical temperature at which molecules of a substance have the lowest energy.

Back 23

Absolute zero

Front 24

What are the two important points of the measurement theory?

Back 24

Process of assigning numerical value to objects and phenomena.

Apprehends the kinds of things that can be measured, how different measures relate to each other, and the problem of error in the measurement process.

Front 25

Define mean

Back 25

A quantity which has its values intermediate between those of the extreme members of the set.

Front 26

Define Arithmetic mean

Back 26

A point at which the numbers balance.

Gives no indication of how widely spread the data are around the mean.

Front 27

Define Geometric Mean

Back 27

Indicates the central tendency or typical value of a set of numbers.

Numbers are multiplied and then divided by the n-th root.

Front 28

Define Harmonic mean

Back 28

Situations where the average rates and rations are desired.

Tends strongly towards the least elements of its list.

Migrate the impact of large outliers.

Aggrevate the impact of small ones.

Front 29

What is the difference between the true value and an average, estimate or approximation called?

Back 29

Error

Front 30

What is standard deviation?

Back 30

Measure of the variability of a set of numerical values and their arithmetic mean.

Front 31

What is standard error of mean?

Back 31

The standard deviation of the error in the sample mean relative to the true mean of the population.

Front 32

What is homeostasis?

Back 32

It is the stability of a self-regulating process by which biological systems tend to adjust to environmental and internal conditions.

Front 33

What is the function of homeostasis?

Back 33

It regulates the internal environment of a system and tends to maintain a stable constant condition optimal for survival.

Front 34

Define range

Back 34

The difference between the smallest value and the largest value. It is the simplest measure of variability.

Front 35

What is physiolgical range

Back 35

Describes the ideal boundaries for biological pressure such as growth and development, usually characteristic of a species or population.

Front 36

What is population mean

Back 36

average and limits of physiological process or parameter characteristic for a certain population, obtained during screening study within this population.

Front 37

What is personal range?

Back 37

average and limits of physiological process or parameter established for certain organism during a period of its life.

Front 38

Give another name for normal distribution

Back 38

Gaussian distribution

Front 39

Describe normal distribution.

Back 39

Characterized by two parameters;

The mean - the maximum of the graph and about which the graph is always symmetrical.

The standard deviation - which determines the amount of dispersion away from the mean.

Front 40

What kind of graph would you get with low standard deviation and high standard deviation?

Back 40

Low SD - steep graph

High SD - Flat graph