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. What is the strong force?
THe force that holds the nucleus together.
W=qV
The refracted light ray is bent 90°. (Parallel to the interface surface.)
When a body's speed is changing.


2. What direction controls time in falling body and projectile motion problems?
Work of a system is equal to 1-Qc/Qh
Vertical direction
Energy and mass are equated by E=mc^2.
It is an arrow that DOES NOT touch the body. Recall that the net force is the answer when all the forces are added up.


3. What is the general equation for motion down a slope and how does it change if the object is going up the slope?
The light travels through the image.
Bends waves around small objects and the interference of waves from a coherent sources.
Impulse is the change in momentum
x=Vo + ((1/2)g)sin(angle)t^2


4. What stays the same for resistors or capacitors in parallel?
E=kq/r^2 This is the electric field's magnitude at a point in space.
W=qV where 'W' is the work - 'q' is the charge and 'V' is the potential difference measured in Volts.
Statistically speaking - energy flows from hot to cold.
Change in voltage across the resistor or capacitor.


5. What is needed for electromagnetic induction to occur?
Zero.
dU = zero. The change in temperature of the gas is zero.
Electromagnetic induction occurs when a conductor is moved through a magnetic field such that a component of the fields is perpendicular to the current;s direction.
In front of the mirror - in the light.


6. What is the order of the visible range electromagnetic spectrum?
ROY-G-BIV: Red - Orange - Yellow - Green - Blue - Indigo - Violet
When the body rests on a surface.
A motor uses energy to spin the coils in a magnetic field. A generator spins the coils to create an potential difference.
This is the highest point of the swinging motion. PE is at a maximum. Displacement is the greatest from equilibrium. KE and Velocity are zero.


7. What is the law of reflection?
Impulse
N/C
convex mirrors are diverging mirrors.
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.


8. What two entities comprise a vector?
Magnitude and direction
Convex
Weber
'm' is replaced by 'q -' and 'g' is replaced by 'E.' W=mg is replaced by F=qE. The second formula describes the force on a charged particle in uniform electric field.


9. What is conservation of energy and what is its significance?
(n1)sin(theta1) = (n2)sin(theta2)
Impulse is (force)(time)
Sum of all the energy forms before a condition equals the sum of all the energy forms after the condition.
Torque


10. How is tube length and wavelength related for a tube that is closed on ONE end?
Only 1/4 wavelength fits in the tube. L=wavelength/4
According to Coulomb's Law - the new force is 6/4 times the old charge.
The longer the length of wire - the higher the resistance.
Sum of the torques equal zero.


11. What is temperature?
wave speed = (wavelength)(frequency)
Convex
The measure of the average kinetic energy of the molecules.
The energy required to remove an electron or nucleon from a molecule.


12. What does upward slope on a displacement versus time graph imply about the velocity.
(1) The image is larger than the object: ho>hi. (2) image is upright.
This is the highest point of the swinging motion. PE is at a maximum. Displacement is the greatest from equilibrium. KE and Velocity are zero.
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)
The velocity is positive


13. State the significance of Young's Experiment.
V=kq/R
Convex
Provided experimental proof of the wave property of light.
Alpha


14. What is an isotope?
Force= Pressure/Area
The work function is a minimum amount of energy needed to release a photon from a collection in the surface of a material. The ionization energy is the energy needed to release an electron from a single - free-floating - molecule. the ionization ener
It is towards the center and downwards a little. It is the sum of the normal force perpendicular to the bowl and the weight downwards.
Same number of protons by a different number of neutrons. e.g. Carbon-12 versus Carbon-14


15. What causes resistance?
Entropy always increases.
When the object is beyond the focus for a concave mirror.
ZERO. Because the force is perpendicular to the displacement . (Open right hand rule.)
Obstacles in the path of the flow of charges.


16. What is the potential energy of a charge in an electric field?
DU = Q+W ...dU:of the environment = Q:from the environment + W:by the environment
V=kq/R
The nucleus
Joule


17. How is tube length and wavelength related for a tube that is opened on both ends?
Only 1/2 a wavelength fits in the tube. L=wavelength/2
Statistically speaking - energy flows from hot to cold.
Pgh ..thats ('rho')(gravity's acceleration)(height)
Bends waves around small objects and the interference of waves from a coherent sources.


18. Under what conditions is mechanical work positive?
Work by a system is negative when the gas contracts. (The volume decreases.)
Work is positive when the force and displacement point in the same direction.
This is the highest point of the swinging motion. PE is at a maximum. Displacement is the greatest from equilibrium. KE and Velocity are zero.
E=hf=hc/(wavelength)


19. What do the period of pendulums and springs each depend on?
m^3/s
Pendulums depend on the length of the arm and the pull of gravity. springs depend on mass and the spring constant.
Resistance: R=R1+R2+R3+...
They fall - vertically - the by the same amount in the same time.


20. What is the second law of thermodynamics?
Statistically speaking - energy flows from hot to cold.
Zero.
It is the time for 1/2 a substance to decay by radioactive processes.
Force= Pressure/Area


21. What is the Bohr Model of the atom?
Pascal
Bends waves around small objects and the interference of waves from a coherent sources.
That the orbits of the electrons are like planets around the Sun.
(Cross-sectional Area)(Velocity)


22. When are f - p - q - ho - hi - and M positive for mirrors?
E=kq/r^2 This is the electric field's magnitude at a point in space.
When the object is beyond the focus for a concave mirror.
Displacement is zero because it is measured from equilibrium position. KE and velocity are at a maximum and it is the lowest point so PE due to gravity is at zero.
Work is positive when the force and displacement point in the same direction.


23. What do you know about two objects that are launched at different horizontal velocities?
They fall - vertically - the by the same amount in the same time.
It is the net force pointing towards the center.
(mg)sin(angle)
Q=0 because thermal energy is not transfered between the system and its surroundings


24. Formula for the electric field between a pari of charged plates.
E=V/d
Displacement is zero because it is measured from equilibrium position. KE and velocity are at a maximum and it is the lowest point so PE due to gravity is at zero.
Speed ups
The CHANGE in velocity.


25. Formula for the electric force felt by a charged particle in an electric field.
Joule
The longer the length of wire - the higher the resistance.
Electric potential is the potential energy associated with the electric force F=qE
F=qE


26. What is force times the parallel diplacement?
That the orbits of the electrons are like planets around the Sun.
Entropy always increases.
Heat - (the 'Q' variable) - is POSITIVE when thermal energy is being ADDED to a system.
Work


27. In uniform circular motion - how is tangential velocity calculated?
2(pi)R/T ...Circumference/Period
The force is perpendicular to the motion to get a circular path of motion. (Think about centripetal force.)
Work is positive when the force and displacement point in the same direction.
Statistically speaking - energy flows from hot to cold.


28. What quantity ADDS for resistors in series?
velocity
frequency (Think of the color as not changing.)
Resistance: R=R1+R2+R3+...
F=Bilsin(theta) ...F=Force (N) - B:=magnetic field (T) - i=current (A) - l=length of wire in the field (m) - theta is the acute angle between the field and current's directions.


29. Which type of radiation has the highest energy?
Gamma
The motion of the molecules in gas.
Convex
Tesla


30. What equation describes the speed of a dropped object 't' seconds after it started moving?

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


31. If you have two charges - and you double one charge and triple the other - and move them twice as far apart - what happens to the force of attraction / repulsion between them?

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


32. What is heat?
The transfer of thermal energy
It is the net force pointing towards the center.
The engine's efficiency is 1-Tc/Th. It is defined by the temperature's in the reservoirs and not the thermal energy flowing from them.
Light must travel from more to less dense so the refracted ray can bend away from the normal.


33. This is used to determine the speed of a fluid when the pipe slopes up or down.

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


34. In electrostatics - what takes the place of m and g in the formulae?

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


35. What happens at the critical angle?
It is used in Lenz's Law to determine the change in flux of a conductor.
Work is positive when the force and displacement point in the same direction.
It is the net force pointing towards the center.
The refracted light ray is bent 90°. (Parallel to the interface surface.)


36. Formula for work as a charged particle travels across two charged plates
E=hf
Work is positive when the force and displacement point in the same direction.
W=qV
Only 1/2 a wavelength fits in the tube. L=wavelength/2


37. What are three ways to increase the capacitance of a capacitor?
W=qV where 'W' is the work - 'q' is the charge and 'V' is the potential difference measured in Volts.
P=IV
Adding the momentum of all the bodies.
C=kEA/d: Increase the area of the plates - decrease the distance between the plates -and increase the dielectric constant between the plates.


38. Buoyancy
(1) The image is larger than the object: ho>hi. (2) image is upright.
The centripetal force is the net force. It's magnitude is calculated from F=ma where 'a' is the centripetal force.
Force lifting a body when it is in a fluid.
Atomic mass number minus atomic number.


39. What is implied when an object is not accelerating in the x direction?
Zero. Because the displacement is perpendicular to the force (centripetal force.)
The initial velocity - (Vo in the formulas)
When the body rests on a surface.
The body is moving at a constant velocity


40. S.I. unit of frictional force
Gamma
Kinetic energy is conserved for an elastic collision and not for an inelastic collision. ELASTIC: m1v1 + m2v2 = m1v1'+m1v2': INELASTIC: m1v1 + m2v2 = (m1+m1)v
'm' is replaced by 'q -' and 'g' is replaced by 'E.' W=mg is replaced by F=qE. The second formula describes the force on a charged particle in uniform electric field.
Newton


41. How must the mediums light is traveling through be arranged so that the condition for the critical angle can exist?
Work by a system is positive when the gas expands. (The volume increases.)
The new force is 2/4 or 1/2 times the old force. ...Because the force of gravity varies directly with the masses and inverse squared to the distance apart.
Light must travel from more to less dense so the refracted ray can bend away from the normal.
Work is positive when the force and displacement point in the same direction.


42. How does the closed right hand rule work in electromagnetic induction?

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


43. S.I. unit of power
Displacement is zero because it is measured from equilibrium position. KE and velocity are at a maximum and it is the lowest point so PE due to gravity is at zero.
Convex
Watt
E=hf


44. Average kinetic energy of an ideal gas's SINGLE molecule.
KE = (3/2)kT
Moment arm
It is the release of photoelectrons released by photons with an energy (E=hf) above the work function.
Reflection is the bouncing of waves. Refraction is the bending of waves. Diffraction bends waves around small objects and causes interference from a coherent sources.


45. How is the magnitude of the force on a current carrying wire calculated?

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


46. When is the image negative for mirrors?

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


47. S.I. unit of Flow rate
Impulse is (force)(time)
Force lifting a body when it is in a fluid.
N•m
m^3/s


48. Which kind of mirror always has a virtual image?
Convex
Pendulums depend on the length of the arm and the pull of gravity. springs depend on mass and the spring constant.
Velocity has a direction and speed does not have direction.
Zero. Because the displacement is perpendicular to the force (centripetal force.)


49. What is a key requirement in order for work to be done?
velocity
Potential energy stored in gravity (PE = mgh)
A displacement must occur. ( W=Fd)
(n1)sin(theta1) = (n2)sin(theta2)


50. Which kind of mirror can show a real image?
Kinetic energy is conserved for an elastic collision and not for an inelastic collision. ELASTIC: m1v1 + m2v2 = m1v1'+m1v2': INELASTIC: m1v1 + m2v2 = (m1+m1)v
The release of a Helium nuclei - 4 -2 He2+
Concave
According to Coulomb's Law - the new force is 6/4 times the old charge.