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 does light absorption involve?
Longitudinal Wave: Sound wave - Transverse Wave: Light wave - 'The Wave' in a a crowd at a porting event.
The incoming light (electromagnetic wave) has the same frequency as some of the electrons.
frequency (Think of the color as not changing.)
(rho)gh


2. When is the image negative for a lens?
Ohm's Law: V=IR
When it is on the same side as the image?
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.
convex mirrors are diverging mirrors.


3. Continuity equation
dU = zero. The change in temperature of the gas is zero.
A1v1=a2v2
The release of a Helium nuclei - 4 -2 He2+
Vertical direction


4. How does a wires composition effect resistance?

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


5. What is the relationship between speed - frequency - and wavelength?
The incoming light (electromagnetic wave) has the same frequency as some of the electrons.
In front of the mirror - in the light.
wave speed = (wavelength)(frequency)
An adiabatic process is where no thermal energy is transfered between the system and its surroundings.


6. 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


7. What is electromagnetic induction?
E=V/d
Conservation of Energy ... because E=hf
Electromagnetic induction is the generation of an Emf by moving a conductor through a magnetic field. emf=change in flux/dt
P=IV


8. When is a normal force present - what is its direction?
When the body rests on a surface.
Watt
E=hf ...E=energy of a single photon (J) - h = Plank's constant - f=frequency (Hz)
P=IV


9. S.I. unit of Flow rate
Work by a system is negative when the gas contracts. (The volume decreases.)
THe force that holds the nucleus together.
m^3/s
When a body is moving at a constant velocity or not moving at all.


10. What does upward slope on a displacement versus time graph imply about the velocity.
Something other than zero.
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.
The velocity is positive
The bending of light


11. What is the area under the acceleration versus time graph?
Alpha
The CHANGE in velocity.
Displacement
Joule


12. What equation describes the speed in the x-direction of a projectile 't' seconds after it started moving?
Vx=(Vxo)t ...Recall that there is no acceleration in the horizontal direction.
The PVT conditions change for a gas without changing the temperature.
Change in voltage across the resistor or capacitor.
Converging lenses have a positive focal length.


13. Under what conditions is heat positive?

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


14. How must the mediums light is traveling through be arranged so that the condition for the critical angle can exist?
Light must travel from more to less dense so the refracted ray can bend away from the normal.
When it is on the 'dark' side of the mirror. Opposite the light.
Convex
Longitudinal Wave: Sound wave - Transverse Wave: Light wave - 'The Wave' in a a crowd at a porting event.


15. Average kinetic energy of an ideal gas's SINGLE molecule.
KE = (3/2)kT
DU = Q+W ...dU:of the environment = Q:from the environment + W:by the environment
velocity
Impulse is (force)(time)


16. What is the energy equation if you see a particle accelerated perpendicular to two charged plates - or the problem states that the particle is accelerated through a potential difference?

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


17. S.I. unit of gravitational force
When a body is moving at a constant velocity or not moving at all.
Energy and mass are equated by E=mc^2.
Newton
Convex


18. How is tube length and wavelength related for a tube that is opened on both ends?
Convex
Sum of the torques equal zero.
Only 1/2 a wavelength fits in the tube. L=wavelength/2
The incoming light (electromagnetic wave) has the same frequency as some of the electrons.


19. If you double the mass of one planet - triple the mass of another - and move them twice as far apart - what happens to the force of attraction between them?
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.
KE=(3/2)kT where k is Boltzman's constant
(1) Straight through the vertex. (2) Parallel then through the primary focus.
Every point on a wave front is a secondary source.


20. In a pendulum or spring - what are the displacement - velocity - PE and KE at the equilibrium position?
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.
Zero.
Every point on a wave front is a secondary source.
Work is positive when the force and displacement point in the same direction.


21. What is the path of a charged particle in a magnetic field?
Newton
The volume under water
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.
The particle travels in a circle. Radius=momentum/qB


22. Which kind of lens always has a virtual image?
E=hf ...E=energy of a single photon (J) - h = Plank's constant - f=frequency (Hz)
The bending of light
Diverging
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.


23. How does impulse relate to force?
Impulse is (force)(time)
It is the time for 1/2 a substance to decay by radioactive processes.
Heat - (the 'Q' variable) - is POSITIVE when thermal energy is being ADDED to a system.
W=qV


24. S.I. unit of magnetism
An adiabatic process is where no thermal energy is transfered between the system and its surroundings.
In front of the mirror - in the light.
Tesla
kg•m/s


25. 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


26. 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?
The acceleration is towards the center. It is supplied by the normal force and points towards the center.
Displacement
Broad bright spot in the middle and alternating dark and light spots to the sides.
KE=Work


27. What is the law of reflection?
Pendulums depend on the length of the arm and the pull of gravity. springs depend on mass and the spring constant.
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.
When it is on the 'dark' side of the mirror. Opposite the light.
Lenses that are thinner in the middle than on the edges.


28. How can you tell when an engine is a Carnot Engine?

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


29. Work is the area under which curve?
Concave
The volume under water
The incoming light (electromagnetic wave) has the same frequency as some of the electrons.
The graph of force vs displacement


30. What is the strong force?
convex mirrors are diverging mirrors.
THe force that holds the nucleus together.
The graph of force vs displacement
The electron


31. 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


32. What is the second law of thermodynamics?
Current stays the same for resistors in series.
Concave
Statistically speaking - energy flows from hot to cold.
Work


33. Define mass in terms of density.
Joule
The refracted light ray is bent 90°. (Parallel to the interface surface.)
m=(rho)V
The acceleration is towards the center. It is supplied by the normal force and points towards the center.


34. What does the pattern look like in a Young's Double Slit diffraction pattern?
F=qE
They fall - vertically - the by the same amount in the same time.
Transverse waves: The displacement is perpendicular to the wave's motion. Longitudinal waves: The displacement is in the direction of the wave's motion.
Dark in the middle and alternating light and dark spots after that.


35. What are the three types of radiation?
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.
Alpha - Beta - and Gamma
N•m
Moment arm


36. State the significance of Young's Experiment.
Longitudinal Wave: Sound wave - Transverse Wave: Light wave - 'The Wave' in a a crowd at a porting event.
Provided experimental proof of the wave property of light.
A change in the gas' temperature.
The electric field forces charges to move.


37. What are the differences and similarities between transverse and longitudinal waves?

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


38. Which type of radiation has the lowest energy?
V=E - IR V=terminal voltage (Volts) - E = emf: electromotiveforce (Volts) - IR = Internal drop in energy per charge (Volts)
Ohm's Law: V=IR
E=hf
Alpha


39. Define Snell's law.
The motion of the molecules in gas.
(n1)sin(theta1) = (n2)sin(theta2)
It is the release of photoelectrons released by photons with an energy (E=hf) above the work function.
(1) The image is larger than the object: ho>hi. (2) image is upright.


40. What equation describes the speed in the y-direction of a projectile 't' seconds after it started moving?
Statistically speaking - energy flows from hot to cold.
The nucleus
F=kq1q2/R^2
Vy=Vyo + gt ...Watch the signs.


41. Unit of electric field
Atmospheric pressure
N/C
Statistically speaking - energy flows from hot to cold.
Potential difference is the change in energy of a charged particle divided by its charge.


42. Unit of energy for electricity.
ROY-G-BIV: Red - Orange - Yellow - Green - Blue - Indigo - Violet
G(M:earth)/r^2 ...force of gravity = G(M:earth)(M:body)/r^2
It is the release of photoelectrons released by photons with an energy (E=hf) above the work function.
V - a Joule/Coulomb


43. How is the force on a charged particle in a magnetic field creating the path calculated?
F=qE
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.
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.
The force is perpendicular to the motion. This always results in a curved path. (Open right hand rule)


44. What makes an image 'real?'
(1) Bounced off the vertex. (2) Parallel the through the focus. (3) Through the focus and parallel.
Open right hand rule
The light travels through the image.
x=(1/2)at^2 Remember - the word 'dropped' implies no initial velocity.


45. Electric force felt by a charge due to another charge.
It is the time for 1/2 a substance to decay by radioactive processes.
F=kq1q2/R^2
The force is perpendicular to the motion. This always results in a curved path. (Open right hand rule)
Velocity has a direction and speed does not have direction.


46. What doesn't change (speed - frequency - or wavelength) - when light moves from one medium to another?
convex mirrors are diverging mirrors.
frequency (Think of the color as not changing.)
The energy required to remove an electron or nucleon from a molecule.
'q' is a single particle's charge and 'Q' is the sum of all the charges. Q=q1+q2+q3+q4...


47. What comprises gamma decay?
Conservation of Energy ... because E=hf
The release of an energetic photon from an overly excited molecule.
Electric potential is the potential energy associated with the electric force F=qE
(n1)sin(theta1) = (n2)sin(theta2)


48. What shape is a diverging mirror?
convex mirrors are diverging mirrors.
Vertical direction
DU = Q+W ...dU:of the environment = Q:from the environment + W:by the environment
Force= Pressure/Area


49. Buoyancy
Force lifting a body when it is in a fluid.
x=(1/2)at^2 ...Horizontal velocity does not affect the time of fall.
Current stays the same for resistors in series.
E=hf=hc/(wavelength)


50. What is ionization energy and how does it compare to the work function?
ROY-G-BIV: Red - Orange - Yellow - Green - Blue - Indigo - Violet
The refracted light ray is bent 90°. (Parallel to the interface surface.)
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
Vertical direction