Test your basic knowledge |

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. Under what conditions does entropy increase?
Entropy always increases.
convex mirrors are diverging mirrors.
How quickly you change velocity.
The release of a particle or photon from an UNSTABLE nucleus.

2. 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

3. What are the three types of radiation?
ZERO
The motion of the molecules in gas.
Vy=Vyo + gt ...Watch the signs.
Alpha - Beta - and Gamma

4. Pressure of an open container at the opening.
C=kEA/d: Increase the area of the plates - decrease the distance between the plates -and increase the dielectric constant between the plates.
Atmospheric pressure
The transfer of thermal energy
Statistically speaking - energy flows from hot to cold.

5. What is the electric field's magnitude inside of a container made from an electrical INSULATOR?
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.
It is when a nucleon changes properties. Like a neutron changing into a proton.
Something other than zero.
Current stays the same for resistors in series.

6. What is the relationship between energy - frequency - and wavelength in any wave?
Electric potential is the potential energy associated with the electric force F=qE
Concave
E=hf=hc/(wavelength)
Heat - (the 'Q' variable) - is NEGATIVE when thermal energy is being REMOVED from a system.

7. What do you do with any vector that is not on either the x or y axis?
system is the gas being studied. Environment is the surroundings outside the gas.
Break it up into x and y components using trig - add up the components.
Impulse
The CHANGE in velocity.

8. Formula for work by a car that changes speed on a horizontal road.
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
How quickly you change velocity.
W = KE:final - KE:initial
When the object is beyond the focus for a concave mirror.

9. Which type of lenses have a NEGATIVE focal length?
Provided experimental proof of the wave property of light.
Diverging lenses have a negative focal length.
Work is the change in kinetic energy. Work transfers energy to and from a body
G(M:earth)/r^2 ...force of gravity = G(M:earth)(M:body)/r^2

10. What is the area under the velocity time graph?
Displacement
(1) Bounced off the vertex. (2) Parallel the through the focus. (3) Through the focus and parallel.
wave speed = (wavelength)(frequency)
Impulse is (force)(time)

11. What is the electric field's magnitude inside of a container made from an electrical CONDUCTOR?
It is when a nucleon changes properties. Like a neutron changing into a proton.
ZERO
Zero.
Weber

12. Under what conditions is work by a system ( gas) negative?
Bends waves around small objects and the interference of waves from a coherent sources.
They fall - vertically - the by the same amount in the same time.
The CHANGE in velocity.
Work by a system is negative when the gas contracts. (The volume decreases.)

13. What comprises alpha radiation?
The release of a Helium nuclei - 4 -2 He2+
Vy=Vyo + gt ...Watch the signs.
They fall - vertically - the by the same amount in the same time.
Lenses that are fatter in the middle than on the edges.

14. What is the impact on the first law of thermodynamics for an isothermal process?
The charge on each capacitor.
dU = zero. The change in temperature of the gas is zero.
Work is the change in kinetic energy. Work transfers energy to and from a body
The velocity is positive

15. What is force times the parallel diplacement?
Work
The acceleration is towards the center. It is supplied by the normal force and points towards the center.
Newton
ZERO. Because the force is perpendicular to the displacement . (Open right hand rule.)

16. Flow Rate
Torque
ROY-G-BIV: Red - Orange - Yellow - Green - Blue - Indigo - Violet
Work done 'BY' the gas.
(Cross-sectional Area)(Velocity)

17. Under what conditions is work by a system ( gas) positive?
Work by a system is positive when the gas expands. (The volume increases.)
The motion of the molecules in gas.
V=E - IR V=terminal voltage (Volts) - E = emf: electromotiveforce (Volts) - IR = Internal drop in energy per charge (Volts)
Diverging

18. What cause an electromagnetic wave - and what makes the wave propagate indefinitely even in a vacuum?
W=qV
The interaction between an oscillating electric magnetic fields that are oriented 90° to each other. It propagates indefinitely because the wave takes its own medium.
The NET work BY a system is the area enclosed in a cycle on a PV diagram.
(1) Straight through the vertex. (2) Parallel then through the primary focus.

19. What quantity stays the same for resistors in series?
Current stays the same for resistors in series.
Newton
Vertical direction
Atmospheric pressure

20. How do you find the number of neutrons in an atom?
A1v1=a2v2
Work is positive when the force and displacement point in the same direction.
The NET work BY a system is the area enclosed in a cycle on a PV diagram.
Atomic mass number minus atomic number.

21. Under what conditions is mechanical work negative?
Dark in the middle and alternating light and dark spots after that.
Converging lenses have a positive focal length.
Electric potential is the potential energy associated with the electric force F=qE
Work is positive when the force and displacement point in the same direction.

22. What is the second law of thermodynamics?
KE = (3/2)kT
A change in the gas' temperature.
Parallel. Because the plates are shared.
Statistically speaking - energy flows from hot to cold.

23. What does the term electric potential energy mean?
(1) Bounced off the vertex. (2) Parallel the through the focus. (3) Through the focus and parallel.
The transfer of thermal energy
The electric force (Coulomb's Law) can attract and repel and it depends on charge. Universal Gravity depends on mass and always attracts.
Electric potential is the potential energy associated with the electric force F=qE

24. What kind of mirror has a positive focus?
Sum of all the energy forms before a condition equals the sum of all the energy forms after the condition.
Concave
convex mirrors are diverging mirrors.
Work by a system is negative when the gas contracts. (The volume decreases.)

25. Formula for work as a charged particle travels across two charged plates
'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.
When the object is beyond the focus for a concave mirror.
Speed ups
W=qV

26. Under what conditions is heat positive?

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

27. In a pendulum or spring - what are the displacement - velocity - PES - and K at maximum displacement?
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.
W=qV
Something other than zero.
F=kq1q2/R^2

28. Which kind of mirror cannot magnify an image?
Convex
Magnitude and direction
Newton
Q=0 because thermal energy is not transfered between the system and its surroundings

29. What is the path of a charged particle in a magnetic field?
Open right hand rule
Break it up into x and y components using trig - add up the components.
The particle travels in a circle. Radius=momentum/qB
'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.

30. Under what conditions is mechanical work positive?
Lenses that are fatter in the middle than on the edges.
Energy and mass are equated by E=mc^2.
Work is positive when the force and displacement point in the same direction.
wave speed = (wavelength)(frequency)

31. What is implied when an object is not accelerating in the y direction?
g=zero so h=(Vyo)t
No image.
The particle travels in a circle. Radius=momentum/qB
The refracted light ray is bent 90°. (Parallel to the interface surface.)

32. The 'V' is (rho)Vg
The volume under water
Statistically speaking - energy flows from hot to cold.
It is the time for 1/2 a substance to decay by radioactive processes.
Work is the change in kinetic energy. Work transfers energy to and from a body

33. What does upward slope on a displacement versus time graph imply about the velocity.
x=(1/2)at^2 Remember - the word 'dropped' implies no initial velocity.
The velocity is positive
Work is positive when the force and displacement point in the same direction.
Joule

34. State the significance of Young's Experiment.
Newton
PV=nRT and PV=kT
Impulse
Provided experimental proof of the wave property of light.

35. Unit that means the same thing as Nm
Joule
A reflected ray's phase is changes by 180° when the ray is bounced as it tries to travel from a lower to higher index of refraction. It is also changed y 180° when it bounces off of shiny surfaces.
Work done 'BY' the gas.
The acceleration is towards the center. It is supplied by the normal force and points towards the center.

36. What is mass energy equivalence?
Energy and mass are equated by E=mc^2.
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)
kg•m/s
the refracted ray bends AWAY from the normal line.

37. What two entities comprise a vector?
Magnitude and direction
Diverging
Something other than zero.
When the body rests on a surface.

38. Describe the relationship between Qh - Qc - and W in a heat engine?
Work of a system is equal to 1-Qc/Qh
Tesla
The interaction between an oscillating electric magnetic fields that are oriented 90° to each other. It propagates indefinitely because the wave takes its own medium.
Statistically speaking - energy flows from hot to cold.

39. S.I. unit of flux
'q' is a single particle's charge and 'Q' is the sum of all the charges. Q=q1+q2+q3+q4...
Displacement
The body is moving at a constant velocity
Weber

40. Unit of energy for electricity.
ROY-G-BIV: Red - Orange - Yellow - Green - Blue - Indigo - Violet
Something other than zero.
Joule
V - a Joule/Coulomb

41. S.I. unit of momentum
kg•m/s
Concave
How quickly you change velocity.
The acceleration is towards the center. It is supplied by the normal force and points towards the center.

42. What is electromagnetic induction?
Electromagnetic induction is the generation of an Emf by moving a conductor through a magnetic field. emf=change in flux/dt
When it is on the 'dark' side of the mirror. Opposite the light.
Newton
The energy required to remove an electron or nucleon from a molecule.

43. 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

44. S.I. unit of centripetal force
Newton
The electric force (Coulomb's Law) can attract and repel and it depends on charge. Universal Gravity depends on mass and always attracts.
The higher the temperature the higher the resistance. They are proportional to each other.
Energy and mass are equated by E=mc^2.

45. When is sum of force (net force) zero?
PV=nRT and PV=kT
When a body is moving at a constant velocity or not moving at all.
(mg)sin(angle)
Work is positive when the force and displacement point in the same direction.

46. What is the energy equation if a force (friction) through a distance results in heat and thus a change in temperature?
KE=Work
The refracted light ray is bent 90°. (Parallel to the interface surface.)
No image.
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.

47. What is work energy theorem and what is its significance?
It is the release of photoelectrons released by photons with an energy (E=hf) above the work function.
Work is the change in kinetic energy. Work transfers energy to and from a body
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.
Energy and mass are equated by E=mc^2.

48. What is the relationship between speed - frequency - and wavelength?
wave speed = (wavelength)(frequency)
Lost kinetic energy is work. It is calculated from Fd or KE:final - KE:initial
Current stays the same for resistors in series.
(rho)gh

49. How can total momentum be calculated?
The higher the temperature the higher the resistance. They are proportional to each other.
KE = (3/2)kT
Adding the momentum of all the bodies.
It is the net force pointing towards the center.

50. What quantity ADDS for resistors in series?
The release of a Helium nuclei - 4 -2 He2+
Power ... Power equals the change in energy over time.
Resistance: R=R1+R2+R3+...
KE = (3/2)kT