AP Physics

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 force times the parallel diplacement?
Work
How quickly you change velocity.
N/C
Atomic number is the number of protons. Atomic mass number is the number of nucleons - (protons and neutrons.)


2. What is the energy of a photon?

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


3. Mathematically what does centripetal force represent and how is centripetal force calculated?

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


4. 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


5. What causes resistance?
The charge on each capacitor.
When it is on the same side as the image?
Obstacles in the path of the flow of charges.
An adiabatic process is where no thermal energy is transfered between the system and its surroundings.


6. What is the binding energy?
A displacement must occur. ( W=Fd)
Potential difference is the change in energy of a charged particle divided by its charge.
Broad bright spot in the middle and alternating dark and light spots to the sides.
The energy required to remove an electron or nucleon from a molecule.


7. What is ionization energy and how does it compare to the work function?
PV=nRT and PV=kT
Transverse waves: The displacement is perpendicular to the wave's motion. Longitudinal waves: The displacement is in the direction of the wave's motion.
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
That the orbits of the electrons are like planets around the Sun.


8. Formula for work by a car that changes speed on a horizontal road.
W = KE:final - KE:initial
Magnitude and direction
When it is on the same side as the image?
It is used in Lenz's Law to determine the change in flux of a conductor.


9. What is the law of reflection?
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.
Diverging lenses have a negative focal length.
Same number of protons by a different number of neutrons. e.g. Carbon-12 versus Carbon-14
(1) Bounced off the vertex. (2) Parallel the through the focus. (3) Through the focus and parallel.


10. What is conservation of energy and what is its significance?
Potential difference is the change in energy of a charged particle divided by its charge.
Sum of all the energy forms before a condition equals the sum of all the energy forms after the condition.
But placing more obstacles in the path of the charge's flow.
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.


11. What is its impact on the first law of thermodynamics of an adiabatic process?
Q=0 because thermal energy is not transfered between the system and its surroundings
G(M:earth)/r^2 ...force of gravity = G(M:earth)(M:body)/r^2
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
V=kq/R


12. How is the centripetal force represented in a free body diagram?
It is the net force pointing towards the center.
Broad bright spot in the middle and alternating dark and light spots to the sides.
Diverging
Adding the momentum of all the bodies.


13. What is an adiabatic process?
W=qV where 'W' is the work - 'q' is the charge and 'V' is the potential difference measured in Volts.
(n1)sin(theta1) = (n2)sin(theta2)
An adiabatic process is where no thermal energy is transfered between the system and its surroundings.
frequency (Think of the color as not changing.)


14. Unit of energy for electricity.
The volume under water
V - a Joule/Coulomb
How quickly you change velocity.
ZERO


15. What does the term electric potential energy mean?
C=kEA/d: Increase the area of the plates - decrease the distance between the plates -and increase the dielectric constant between the plates.
Impulse is the change in momentum
Electric potential is the potential energy associated with the electric force F=qE
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.


16. What is needed for electromagnetic induction to occur?
Newton
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.
Alpha
Only 1/4 wavelength fits in the tube. L=wavelength/4


17. What is the energy equation if you see a height difference between two points in the problem?
The thicker the wire - the lower the resistance.
Potential energy stored in gravity (PE = mgh)
The centripetal force points along the radius towards the center of the circle.
Concave


18. Define diffraction
Bends waves around small objects and the interference of waves from a coherent sources.
An adiabatic process is where no thermal energy is transfered between the system and its surroundings.
V=Vo + at ...The word 'dropped' means no initial velocity.
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.


19. What is the area under any PV curve?

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


20. What is heat?
The release of an electron and antineutrino or the release of a positron and a neutrino.
m^3/s
The transfer of thermal energy
Vy=Vyo + gt ...Watch the signs.


21. What shape is a diverging mirror?
The centripetal force points along the radius towards the center of the circle.
convex mirrors are diverging mirrors.
'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.
W=qV


22. What is meant by the terms system and environment?
Resistance: R=R1+R2+R3+...
x=Vo + ((1/2)g)sin(angle)t^2
system is the gas being studied. Environment is the surroundings outside the gas.
The electric force (Coulomb's Law) can attract and repel and it depends on charge. Universal Gravity depends on mass and always attracts.


23. Under what conditions is heat negative?

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


24. What is the difference between emf and voltage?
(1) The image is larger than the object: ho>hi. (2) image is upright.
KE = (3/2)kT
Emf is the maximum available energy per charge at the terminal of a power source. Voltage is the actual available energy per charge at the terminals of a power source. Some energy is lost due to the source internal resistance.
Atomic number is the number of protons. Atomic mass number is the number of nucleons - (protons and neutrons.)


25. Under what conditions does entropy increase?
The NET work BY a system is the area enclosed in a cycle on a PV diagram.
Entropy always increases.
E=hf=hc/(wavelength)
Initial velocity


26. What does light emission involve?
Force lifting a body when it is in a fluid.
Something other than zero.
It is the time for 1/2 a substance to decay by radioactive processes.
Electromagnetic wave exits the electrons to a higher orbital. When the electron relaxes - a wavelength of light is given off.


27. What is an indication of a change in the internal energy?

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


28. 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


29. Pressure of an open container at the opening.
Atmospheric pressure
In front of the mirror - in the light.
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.
Bernoulli's equation - Flow Rate = Volume/time


30. What is mass energy equivalence?
Energy and mass are equated by E=mc^2.
'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.
m^3/s
The electron


31. Define Refraction
V=kq/R
Concave mirrors are converging mirrors.
kg•m/s
The bending of light


32. 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.
The charge on each capacitor.
the refracted ray bends AWAY from the normal line.


33. What shape is a converging mirrors?
The force is perpendicular to the motion. This always results in a curved path. (Open right hand rule)
(1) Straight through the vertex. (2) Parallel then through the primary focus.
Concave mirrors are converging mirrors.
The thicker the wire - the lower the resistance.


34. Flow Rate
dU = zero. The change in temperature of the gas is zero.
Force= Pressure/Area
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.
(Cross-sectional Area)(Velocity)


35. What is internal energy?
m^3/s
The motion of the molecules in gas.
Weight ...w=mg
KE = (3/2)kT


36. When is a normal force present - what is its direction?
N/C
When the body rests on a surface.
ROY-G-BIV: Red - Orange - Yellow - Green - Blue - Indigo - Violet
Atmospheric pressure


37. What is the difference between atomic number and atomic mass number?
Only 1/2 a wavelength fits in the tube. L=wavelength/2
The release of an electron and antineutrino or the release of a positron and a neutrino.
Atomic number is the number of protons. Atomic mass number is the number of nucleons - (protons and neutrons.)
Magnitude and direction


38. What are 2 key differences between electric force and gravitational force?

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


39. Work is the area under which curve?
The graph of force vs displacement
The velocity is positive
According to Coulomb's Law - the new force is 6/4 times the old charge.
It is the release of photoelectrons released by photons with an energy (E=hf) above the work function.


40. Gauge Pressure

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


41. 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


42. How does temperature effect resistance?
2(pi)R/T ...Circumference/Period
The higher the temperature the higher the resistance. They are proportional to each other.
Zero.
Bends waves around small objects and the interference of waves from a coherent sources.


43. What conditions are necessary to change the reflected ray's phase by 180°?

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


44. What are the two forms of the ideal gas law?
A motor uses energy to spin the coils in a magnetic field. A generator spins the coils to create an potential difference.
The measure of the average kinetic energy of the molecules.
W=qV
PV=nRT and PV=kT


45. S.I. unit of momentum
W=qV
kg•m/s
the refracted ray bends TOWARDS the normal line.
Speed ups


46. S.I. unit of torque
Joule
Alpha - Beta - and Gamma
N•m
Emf is the maximum available energy per charge at the terminal of a power source. Voltage is the actual available energy per charge at the terminals of a power source. Some energy is lost due to the source internal resistance.


47. How do you find the number of neutrons in an atom?
Atomic mass number minus atomic number.
(rho)gh
KE=(3/2)kT where k is Boltzman's constant
W=qV where 'W' is the work - 'q' is the charge and 'V' is the potential difference measured in Volts.


48. What shape is a diverging lenses?
The bouncing of light
Obstacles in the path of the flow of charges.
Conservation of Energy ... because E=hf
Lenses that are thinner in the middle than on the edges.


49. S.I. unit of magnetism
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.
Tesla
The graph of force vs displacement
Adding the momentum of all the bodies.


50. What is the derived equation for the ACCELERATION of gravity in terms of m and 'r' squared?
G(M:earth)/r^2 ...force of gravity = G(M:earth)(M:body)/r^2
Parallel. Because the plates are shared.
F=kq1q2/R^2
x=Vo + ((1/2)g)sin(angle)t^2