DSST Physical Sciences2

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. So if you are given an equation and it gives you the E^o for both side equations seen in the big equation - what do you do with them?
Ability to locate an event in space
Zero
Until all of it has been melted because energy is going into it to melt it not to change temperature during its melting
Add them together


2. How do you find the equiv capacitance of capacitors in series and parallel? What about if you are trying to find equivalent resistance?
C: series = 1/C + 1/C = 1/C; parallel = C + C = C R: series: R+R = R; parallel = 1/R + 1/R = 1/R
The buoyant force on it; W = mg = pVg
Ease of polarizability of the molecule and thus increasing molecular weight of mass
Attractive molecular forces acting between material surfaces in contact


3. If you are told to find the maximum number of NiCo3 that can form how do you do that?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


4. The volume of an object is equal to water?
Sp^3
It can also equal 'mg'; the compressive strength of a substance
Liquid displaced by that object
Alkali metals = first column


5. When an element decreases its atomic number by one what is emitted?
C: series = 1/C + 1/C = 1/C; parallel = C + C = C R: series: R+R = R; parallel = 1/R + 1/R = 1/R
1000
Strong acid and strong base/ weak acid and weak base
Positron because this is known as positron decay/electron capture


6. A pendulum moves under the influence of what?
The cross-sectional area through which the fluid flows
Gravity
It can also equal 'mg'; the compressive strength of a substance
Half of the exponent


7. In general what is formed by an acid-base rxn?
Shorter than it should be so rays from a distant object form in front of retina; use divergent lens
PbCO2 is less soluble than PbI - and PbI less soluble than PbSO4; CO2 - then I - then SO4
A salt and water
At an equal distance behind it as the object is in front of the mirror


8. How do you find wavelength if you known distance from adjacent crests and troughs?
Mv = mv
Its twice that distance
Mass per unit volume compared to water: so if mass is 15 g and displaces 5g of benzene the ratio of object to liquid mass is 15/5 = 3 and then times 3 by the specific gravity of benzene which is 0.7
Ability to locate an event in space


9. If temperature arises during a mixture what can you conclude about the enthalpy?
The lowest whole number ratio of moles of each element in a mole of a cmpd
That it is negative
That they are catalysts in the rxn because they react with the substrate and are reformed
P = F(v) = mg(v -terminal)


10. What is the doppler equation for wavelength and frequency?
The Ka or Kb that has an exponent closest to 7 because pKa + pKb = pKw and pKw = 14
Wavelength: (change in y)/(y) = v/c frequency: (change in f)/(f) = -v/c
Constant; stress/strain = (F/A)/ (change in L/L) = straight line withe positive slope that stays constant
Force times the distance over which the force acts


11. Why would a solution with unfilled orbitals be responsible for turning a solution a certian color?
A saturated solution in which the aqueous ions are in equilibrium with the solid
You see how many moles of each are present and the one with the least is limiting; calculate how many grams/moles of a product will be made
Mg
It can absorb light that lets other electrons fill those orbitals


12. What direction do gravity and bouyancy work? What direction does water pressure work?
The lowest one
Vertically; perpendicular to all surfaces
The cross-sectional area through which the fluid flows
F = GMm/r^2


13. As a balloon rises in a tank of water what happens to the temperature inside it? Why would this happen?
Shorter than it should be so rays from a distant object form in front of retina; use divergent lens
Quantum number that dictates the shape of an orbital; how many angular nodes are present? Spherical shape with no angular nodes thus you have 0 for angular momentum quantum number
Colligative: it depends on the number of solute molecules in a given volume of water
It decreases; the work done by the gas in expanding decreases its internal energy


14. Terminal voltage is provided to what?
Accelerated by a higher voltage between the cathode and anode
External components of the circuit
[A]^a[B]^b
1000


15. Can a catalyst shift equilibrium?
Neutrons; atomic number
When HIn is turned into In- - which is dependent upon the pKa of the indicator
Decreasing potential energy
No - it increases the speed at which the rxn reaches that equilibrium


16. Hydrogen has what kind of standard oxidation or reduction potential?
Attractive molecular forces acting between material surfaces in contact
Mg
Zero
A constant force on a mass causes it to have a constant acceleration


17. How do you find what is the limiting reagent? You can then use the moles of the limiting reagent to calculate what?
The force along the board to the normal force
Going from solid to gas phase
When HIn is turned into In- - which is dependent upon the pKa of the indicator
You see how many moles of each are present and the one with the least is limiting; calculate how many grams/moles of a product will be made


18. The equivalence pt is what part of the titration curve? Thus looking at the range of change between the pH values along this part of the graph can tell you what?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


19. What is different between an inclined plane and free fall?
Pascal (N*m^2)
Faraday/electrons
Look at how many times smaller the H concentration becomes with relation to rate law: if rate law says [H] is second order: ((10^-2)^2/(10^-1)^2 = 10^-2 and then times that answer by the original rate
The path is longer on the inclined plane so it will take object longer to reach the bottom


20. If you have circuit elements in parallel what is the same across them?
Voltage
V/m or N/C
The lowest amt than any of the other cmpds with a higher carbon to oxygen ratio
F =ma and F= qE


21. Beta decay is the emission of what? How do you know what it is the emission of?
V/m or N/C
An odd number
It will increase as well because they are directly related - only if pressure is kept constant
A positron or electron; when atomic number goes up you know an electron has been emitted


22. What are the units of an electric field?
H = negative and S = positive
1000
V/m or N/C
The part where it's straight almost up before it curves to plateau at new pH; it can tell you what indicator you could use to detect the equivalence point


23. In radioactive decay the atomic number (A) and mass number (Z) must what?
A function of the total number of molecules; if there is one mol of CO2 for every 2 mol of H20 then H20 is 2/3 the total pressure
They must balance
The height of the liquid above it ; blood pressure increases because of the force of gravity (P= (density)g(height)
L = wavelength/2 so L= (wavelength)(2)


24. How do you find specific gravity of an object?
Well F = GmM/R^2 and force = mg so equating those together g = GM/R^2
Positive
Mass per unit volume compared to water: so if mass is 15 g and displaces 5g of benzene the ratio of object to liquid mass is 15/5 = 3 and then times 3 by the specific gravity of benzene which is 0.7
Going from solid to gas phase


25. In a rxn - how do you figure out which atom has the highest electron affinity?
The force along the board to the normal force
Accelerated by a higher voltage between the cathode and anode
Look at the reactants and see which atom is being reduced - since it accepts the electron readily and is reduced we can assume it has the highest electron affinity
Going from solid to gas phase


26. If you have a decrease of pressure to which side of the equation is it equilibrium shifted towards? What about if you increase temperature?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


27. A floating ice cube implies that it's weight is balanced by what?
The buoyant force on it; W = mg = pVg
The lowest whole number ratio of moles of each element in a mole of a cmpd
1000
Mass per unit volume compared to water: so if mass is 15 g and displaces 5g of benzene the ratio of object to liquid mass is 15/5 = 3 and then times 3 by the specific gravity of benzene which is 0.7


28. The temperature of a metal will not increase above its melting point until what?
V/m or N/C
Until all of it has been melted because energy is going into it to melt it not to change temperature during its melting
The regular one
An odd number


29. How should the period of a waveform be calculated?
180 degrees; when there is half a wave distance in phase between two waves
The lowest whole number ratio of moles of each element in a mole of a cmpd
That they are catalysts in the rxn because they react with the substrate and are reformed
From peak to peak


30. What is the hybridization of oxygen in water and other oxygens similar to water with two bonds and two lone pairs of electrons?
W = F(displacement)
It has a positive oxidation potential so it is easily oxidized
It will be reduced the voltage produced by the resistor which means IR; E- IR
Sp^3


31. The electrical force on a particle depends on what?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


32. What is the magnitude of the electric field produced by a point charge?
Until all of it has been melted because energy is going into it to melt it not to change temperature during its melting
Well F = GmM/R^2 and force = mg so equating those together g = GM/R^2
E = (kq)/r^2
V/m or N/C


33. What type of acid and base would produce a pH closest to 7?
A constant force on a mass causes it to have a constant acceleration
Momentum
L = wavelength/2 so L= (wavelength)(2)
Strong acid and strong base/ weak acid and weak base


34. What is Newton's Universal Law of Gravitation?
That they are catalysts in the rxn because they react with the substrate and are reformed
In the presence of a base
That it is negative
F = GMm/r^2


35. Why does light travel slower in an optically dense medium than through a vacuum?
Mass number stays the same but the atomic number increases
It will take longer to melt if the water bath is only at 90 degrees rather than 100 degrees because at 100 degrees the temperature is hotter and thus it will melt faster than at 90 degrees
Light is absorbed and re-emitted by the atomic structure of the optically dense medium
Wavelength: (change in y)/(y) = v/c frequency: (change in f)/(f) = -v/c


36. What is weight equal to?
Energy
6.02 x 10^23 ions/mol
The blood pressure in the leg is greater because the column between the arm and the leg has a hydrostatic pressure
Mg


37. What is the formula for the power supplied by a battery to accelerate an electron beam?
They do not differ
Until all of it has been melted because energy is going into it to melt it not to change temperature during its melting
That of static friction; there is a net accelerating force on the block once it starts to slide
P = IV


38. What is one faraday equal to?
E = (kq)/r^2
One mole of electric charge
An odd number
A positron or electron; when atomic number goes up you know an electron has been emitted


39. An alpha particle can also be assumed to be what element? What is the mass number of Helium?
The reaction between the base and water
Red
Helium; 4
Neutrons; atomic number


40. The concentration of OH and H30 ions are approximately equal at what pH?
Vertically; perpendicular to all surfaces
Yes because ionic zinc has oxidation of (2+) and Zn is easily oxidized so it will displace H and ZnCl2 will be formed
Neutrons; atomic number
7 always!!!


41. The number of incident photons on the cathode affect what?
The number of electrons emitted
The blood pressure in the leg is greater because the column between the arm and the leg has a hydrostatic pressure
Dipole moment; the attractive forces holding them together in liquid state are London or dispersion forces
Yes because ionic zinc has oxidation of (2+) and Zn is easily oxidized so it will displace H and ZnCl2 will be formed


42. The basicity constant Kb measures what?
How strong a base is
It can also equal 'mg'; the compressive strength of a substance
6.02 x 10^23 ions/mol
Shorter than it should be so rays from a distant object form in front of retina; use divergent lens


43. When something is falling what is the force acting on it? Thus what would be the work done?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


44. What would the force be of a block on a pulley? What would be its displacement?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


45. A plane mirror produces an image where?
Positron emission
At an equal distance behind it as the object is in front of the mirror
It experiences a constant electric force of qE and will thus accelerate towards the positive plate
Cathode; anode


46. Nuclear masses can be approximated from what?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


47. Regarding M(OH)2 and you have solubility (S) - what would the Ksp be?
It's weight = mg; the work would be the weight times the distance fell
The mass of an acid that yields one mole of H ions or the mass of a base that reacts with one mole of H ions
[S][2S]^2 = 4S^3
One mole of electric charge


48. How do you find moles of a substance when you are given faradays and electrons?
They increase because you hear a lower frequency
Faraday/electrons
Neutrons; atomic number
Wavelength: (change in y)/(y) = v/c frequency: (change in f)/(f) = -v/c


49. The electrons emitted from cathode are replaced with what?
Electrons from anode and battery
It will increase as well because they are directly related - only if pressure is kept constant
-l to +l
A saturated solution in which the aqueous ions are in equilibrium with the solid


50. What is usually conserved over oscillation periods?
Energy
3+
Red
Only temperature of the water bath