Physical Science

Question 0

heat capacity

Answer 0

amount of energy it takes to raise 1 degree K (depends on how amount of stuff we have)

Question 1

polyprotic acid

Answer 1

acid containing more than one hydrogen ion

Question 2

continuity equation

Answer 2

volume flow rate for an ideal fluid must be constant
v1A1=v2A2

narrowing of arteririal walls- reduced arterial pressure due to the increase in flow rate

Question 3

Henderson Hasselbach equation

Answer 3

pH= pKa + log (conjugate base/acid)

Question 4

right hand rule

Answer 4

thumb- direction of vector qv

curl- magnetic force

Question 5

relate object distance o, image distance i, and focal length

Answer 5

1/0+ 1/I = 1/F

Question 6

current increases

Answer 6

voltage decreases

Question 7

solubility depends on…

Answer 7

temperature, polarity, addition of other solutes, pressure for gases in solution

Question 8

torque

Answer 8

t= rF

Question 9

buoyant force

Answer 9

F= density(g)(Vsubmerged)

Question 10

ammeter

Answer 10

measures current

Question 11

Ohm’s law

Answer 11

V=I/R

Question 12

Kirchoff’s Law

Answer 12

the voltage drop across the two resistors added together must be euqal to the voltage supplied by the battery

i = e/(1+R)

Question 13

good ammeter

Answer 13

low internal resistance so it dissipates very little enrgy

Question 14

current

Answer 14

charge/time
flow of electric charge
incomressible fluid of negative charge

Question 15

capacitance of a parallel plate capacitor

Answer 15

C= kE0 A/d

k= dielectric constant of the medium between plates
E0= permittivity of free sspace
A= area overlap between two plates
d= separation of two plates

Question 16

capacitance

Answer 16

Q= CV

Question 17

power

Answer 17

P= W/t

work/ time

P= iV (current times voltage)

Question 18

power released when current i passes through resistance R

Answer 18

P= i^2 R

Question 19

sinusoidal current

Answer 19

I= Imaxsinwt

Question 20

Resistance of a wire

Answer 20

R- resistivity(p)L/A

Question 21

index of refraction

Answer 21

n=c/v

n= index of refraction in medium

Question 22

converging lens

Answer 22

helps light converge more quickly? helps light focus on retina when its focusing behind the retina

Question 23

converging lens

Answer 23

real if object is placed outside focal length

and inverted if it is a real image formed by converging lens

Question 24

all items clearly viewed by eye are...

Answer 24

outside the focal length

Question 25

image formed on retina

Answer 25

real, inverted, and reduced

Question 26

increase in boiling point

Answer 26

decrease in vapor pressure

Question 27

boiling point is proportional to ...

Answer 27

molality of a solution

Question 28

ethanol vs. water

Answer 28

ethanol is more volatile

Question 29

Boiling point elevation equation

Answer 29

change in T = K(b)molality

Question 30

For power to increase,

Answer 30

current must increase and total resistance of circuit must decreaese

Question 31

electric field

Answer 31

E=V/d

Question 32

force due to an electric field

Answer 32

F= neE

Question 33

electrolytic cell

Answer 33

an external source of electrical power is used to induce a nonspontaeous reaction to occur

Question 34

Values for index of refraction change as...

Answer 34

change as wavelength of light changes.

Question 35

Young's modulus

Answer 35

stress/strain

Question 36

x, v, t

Answer 36

x= v(f)t+ (1/2)(a)(t^2)

Question 37

rotational equilibrium

Answer 37

rFsin(theta)= r2F2sin2(theta)

Question 38

Greatest vibration?

Answer 38

Point where waves from second and third fundamentals constructively interfere the most (closest to two overlapping antinodes)