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. 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


2. What is the direction of the centripetal acceleration?
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)
Concave
Watt
The electric field forces charges to move.


3. What are the two forms of the ideal gas law?
Newton
A motor uses energy to spin the coils in a magnetic field. A generator spins the coils to create an potential difference.
Entropy always increases.
PV=nRT and PV=kT


4. What is mass energy equivalence?
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
Energy and mass are equated by E=mc^2.
Sum of all the energy forms before a condition equals the sum of all the energy forms after the condition.
Work is the change in kinetic energy. Work transfers energy to and from a body


5. What kind of image do you get when the object is placed at the focus?
Statistically speaking - energy flows from hot to cold.
Weber
No image.
Newton


6. What is internal energy?
'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.
The electric field forces charges to move.
When it is on the 'dark' side of the mirror. Opposite the light.
The motion of the molecules in gas.


7. What shape is a converging mirrors?
E=kq/R^2
Bends waves around small objects and the interference of waves from a coherent sources.
Energy and mass are equated by E=mc^2.
Concave mirrors are converging mirrors.


8. What does the pattern look like in a Young's Single Slit diffraction pattern?
Lenses that are fatter in the middle than on the edges.
m^3/s
Broad bright spot in the middle and alternating dark and light spots to the sides.
The particle travels in a circle. Radius=momentum/qB


9. Formula for the potential difference of a point charge as compared to infinity.
Dark in the middle and alternating light and dark spots after that.
Only 1/4 wavelength fits in the tube. L=wavelength/4
Alpha - Beta - and Gamma
V=kq/R


10. 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


11. 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


12. This is the gauge pressure when under water.
(rho)gh
Work of a system is equal to 1-Qc/Qh
Entropy always increases.
A motor uses energy to spin the coils in a magnetic field. A generator spins the coils to create an potential difference.


13. S.I. Unit of electric force
ZERO
Alpha
Newton
Impulse is (force)(time)


14. What do batteries and generators produce?
Adding the momentum of all the bodies.
Only 1/4 wavelength fits in the tube. L=wavelength/4
A potential difference and a flow and energized charges.
When the body rests on a surface.


15. Define Refraction
The bending of light
V=kq/R
Newton
g=zero so h=(Vyo)t


16. What is Huygen's Principle?
Every point on a wave front is a secondary source.
wave speed = (wavelength)(frequency)
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.
Adding the momentum of all the bodies.


17. Pressure of an open container at the opening.
Impulse
THe force that holds the nucleus together.
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.
Atmospheric pressure


18. Under what conditions is mechanical work negative?
Vertical direction
Statistically speaking - energy flows from hot to cold.
Work is positive when the force and displacement point in the same direction.
Q=0 because thermal energy is not transfered between the system and its surroundings


19. What is the difference between a motor and a generator?
A motor uses energy to spin the coils in a magnetic field. A generator spins the coils to create an potential difference.
Zero.
A displacement must occur. ( W=Fd)
The centripetal force is the net force. It's magnitude is calculated from F=ma where 'a' is the centripetal force.


20. What is the difference between reflection - refraction - and diffraction?
velocity
The PVT conditions change for a gas without changing the temperature.
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.
ZERO


21. Which type of radiation has the lowest energy?
Lenses that are fatter in the middle than on the edges.
Alpha
V=E - IR V=terminal voltage (Volts) - E = emf: electromotiveforce (Volts) - IR = Internal drop in energy per charge (Volts)
Speed ups


22. What is work energy theorem and what is its significance?
Work by a system is positive when the gas expands. (The volume increases.)
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.
Resistance: R=R1+R2+R3+...
Work is the change in kinetic energy. Work transfers energy to and from a body


23. When light travels from LESS dense to a MORE dense mediums - how does the refracted ray bend in relation to the normal line?
the refracted ray bends TOWARDS the normal line.
When the object is beyond the focus for a concave mirror.
Vertical direction
convex mirrors are diverging mirrors.


24. What does upward slope on a displacement versus time graph imply about the velocity.
Converging lenses have a positive focal length.
Speed ups
m^3/s
The velocity is positive


25. What do you do with any vector that is not on either the x or y axis?
According to Coulomb's Law - the new force is 6/4 times the old charge.
The higher the temperature the higher the resistance. They are proportional to each other.
When a body is moving at a constant velocity or not moving at all.
Break it up into x and y components using trig - add up the components.


26. Formula for work as a charged particle travels across two charged plates
W=qV
the refracted ray bends AWAY from the normal line.
W=qV where 'W' is the work - 'q' is the charge and 'V' is the potential difference measured in Volts.
Concave mirrors are converging mirrors.


27. What shapes are converging lenses?
x=(1/2)at^2 ...Horizontal velocity does not affect the time of fall.
Zero. Because the displacement is perpendicular to the force (centripetal force.)
Weight ...w=mg
Lenses that are fatter in the middle than on the edges.


28. What two entities comprise a vector?
The refracted light ray is bent 90°. (Parallel to the interface surface.)
That the orbits of the electrons are like planets around the Sun.
Magnitude and direction
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.


29. How is the centripetal force represented in a free body diagram?
Zero.
V=kq/R
Impulse is the change in momentum
It is the net force pointing towards the center.


30. What do the period of pendulums and springs each depend on?
Displacement
Sum of all the energy forms before a condition equals the sum of all the energy forms after the condition.
kg•m/s
Pendulums depend on the length of the arm and the pull of gravity. springs depend on mass and the spring constant.


31. S.I. unit of pressure
Pascal
F=kq1q2/R^2
The PVT conditions change for a gas without changing the temperature.
Same number of protons by a different number of neutrons. e.g. Carbon-12 versus Carbon-14


32. What is the derived equation for the electric field in terms of q and r^2 ?

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


33. A ball rolls inside a salad bowl. The ball is released along the top edge and rolls down before climbing to the same height on the opposite side of the bowl. What is the direction of the acceleration of the ball when it at the bottom of the bowl?
KE=Work
The acceleration is towards the center. It is supplied by the normal force and points towards the center.
The volume under water
Joule


34. What is the photoelectric effect?
It is the release of photoelectrons released by photons with an energy (E=hf) above the work function.
When a body is moving at a constant velocity or not moving at all.
Concave
Atmospheric pressure


35. Electric force felt by a charge due to another charge.
The NET work BY a system is the area enclosed in a cycle on a PV diagram.
F=kq1q2/R^2
V=E - IR V=terminal voltage (Volts) - E = emf: electromotiveforce (Volts) - IR = Internal drop in energy per charge (Volts)
The release of a Helium nuclei - 4 -2 He2+


36. What is the binding energy?
The energy required to remove an electron or nucleon from a molecule.
E=hf=hc/(wavelength)
Concave
Atomic mass number minus atomic number.


37. How is a force's direction oriented compared to a bodies direction of motion to get a circular (curved) path of motion?
The force is perpendicular to the motion to get a circular path of motion. (Think about centripetal force.)
Same number of protons by a different number of neutrons. e.g. Carbon-12 versus Carbon-14
The force is perpendicular to the motion. This always results in a curved path. (Open right hand rule)
Energy and mass are equated by E=mc^2.


38. What is heat?
Break it up into x and y components using trig - add up the components.
frequency (Think of the color as not changing.)
Zero.
The transfer of thermal energy


39. How are velocity and speed different?
V=kq/R
Lenses that are fatter in the middle than on the edges.
Velocity has a direction and speed does not have direction.
Displacement


40. What is force times the perpendicular distance?
Q=0 because thermal energy is not transfered between the system and its surroundings
The centripetal force is the net force. It's magnitude is calculated from F=ma where 'a' is the centripetal force.
Torque
Obstacles in the path of the flow of charges.


41. Which kind of mirror can show a real image?
Concave
The force is perpendicular to the motion to get a circular path of motion. (Think about centripetal force.)
(1) Straight through the vertex. (2) Parallel then through the primary focus.
P=IV


42. How is sum of force (net force) depicted in a free body diagram?
Lenses that are thinner in the middle than on the edges.
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.
(n1)sin(theta1) = (n2)sin(theta2)
'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.


43. Define mass in terms of density.
V=E - IR V=terminal voltage (Volts) - E = emf: electromotiveforce (Volts) - IR = Internal drop in energy per charge (Volts)
m=(rho)V
THe force that holds the nucleus together.
A potential difference and a flow and energized charges.


44. Condition for no rotation
Convex
Sum of the torques equal zero.
Zero.
Newton


45. In uniform circular motion - how is tangential velocity calculated?
DU = Q+W ...dU:of the environment = Q:from the environment + W:by the environment
2(pi)R/T ...Circumference/Period
x=(1/2)at^2 Remember - the word 'dropped' implies no initial velocity.
kg•m/s


46. What stays the same for resistors or capacitors in parallel?
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.
Atomic mass number minus atomic number.
Work is positive when the force and displacement point in the same direction.
Change in voltage across the resistor or capacitor.


47. What is the strong force?
Sum of the torques equal zero.
convex mirrors are diverging mirrors.
THe force that holds the nucleus together.
E=hf=hc/(wavelength)


48. Give an example of a transverse and a longitudinal wave.

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


49. When is the image negative for a lens?
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.
(mg)sin(angle)
Only 1/4 wavelength fits in the tube. L=wavelength/4
When it is on the same side as the image?


50. Flow Rate
N•m
(Cross-sectional Area)(Velocity)
Electric potential is the potential energy associated with the electric force F=qE
Force= Pressure/Area