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. 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


2. What do you know about two objects that are launched at different horizontal velocities?
Zero.
Heat - (the 'Q' variable) - is POSITIVE when thermal energy is being ADDED to a system.
According to Coulomb's Law - the new force is 6/4 times the old charge.
They fall - vertically - the by the same amount in the same time.


3. What do the period of pendulums and springs each depend on?
P=IV
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.
Pendulums depend on the length of the arm and the pull of gravity. springs depend on mass and the spring constant.
The movement of charges is the current and it is measures by the number of charges per second at a point.


4. What is conservation of energy and what is its significance?
(1) Straight through the vertex. (2) Parallel then through the primary focus.
Sum of all the energy forms before a condition equals the sum of all the energy forms after the condition.
How quickly you change velocity.
the refracted ray bends TOWARDS the normal line.


5. What is half life?
According to Coulomb's Law - the new force is 6/4 times the old charge.
KE=Work
It is the time for 1/2 a substance to decay by radioactive processes.
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)


6. Define reflection
Work is the change in kinetic energy. Work transfers energy to and from a body
The bouncing of light
ROY-G-BIV: Red - Orange - Yellow - Green - Blue - Indigo - Violet
It is used in Lenz's Law to determine the change in flux of a conductor.


7. What is heat?
The refracted light ray is bent 90°. (Parallel to the interface surface.)
KE = (3/2)kT
Newton
The transfer of thermal energy


8. How is tube length and wavelength related for a tube that is opened on both ends?
Bends waves around small objects and the interference of waves from a coherent sources.
Current stays the same for resistors in series.
Only 1/2 a wavelength fits in the tube. L=wavelength/2
Diverging


9. What is the relationship that describes the rate that work is done - or that energy is used?
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.
Power ... Power equals the change in energy over time.
Atmospheric pressure
Only 1/2 a wavelength fits in the tube. L=wavelength/2


10. What is the general equation for motion down a slope and how does it change if the object is going up the slope?
Parallel. Because the plates are shared.
the refracted ray bends TOWARDS the normal line.
x=Vo + ((1/2)g)sin(angle)t^2
The centripetal force points along the radius towards the center of the circle.


11. What is force times the perpendicular distance?
The light travels through the image.
Torque
The energy required to remove an electron or nucleon from a molecule.
m^3/s


12. How is the centripetal force represented in a free body diagram?
Zero.
Same number of protons by a different number of neutrons. e.g. Carbon-12 versus Carbon-14
Newton
It is the net force pointing towards the center.


13. 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


14. What does upward slope on a displacement versus time graph imply about the velocity.
Tesla
It is when a nucleon changes properties. Like a neutron changing into a proton.
C=kEA/d: Increase the area of the plates - decrease the distance between the plates -and increase the dielectric constant between the plates.
The velocity is positive


15. What are the three types of radiation?
Alpha - Beta - and Gamma
Lost kinetic energy is work. It is calculated from Fd or KE:final - KE:initial
The charge on each capacitor.
E=hf=hc/(wavelength)


16. 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


17. What doesn't change (speed - frequency - or wavelength) - when light moves from one medium to another?
THe force that holds the nucleus together.
The PVT conditions change for a gas without changing the temperature.
Light must travel from more to less dense so the refracted ray can bend away from the normal.
frequency (Think of the color as not changing.)


18. 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


19. How do you find the number of neutrons in an atom?
m^3/s
Atomic number is the number of protons. Atomic mass number is the number of nucleons - (protons and neutrons.)
g=zero so h=(Vyo)t
Atomic mass number minus atomic number.


20. 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


21. What is temperature?
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)
When the object is beyond the focus for a concave mirror.
The measure of the average kinetic energy of the molecules.
The particle travels in a circle. Radius=momentum/qB


22. How does the speed change when the pressure is decreased?
(rho)gh
Speed ups
Torque
Energy and mass are equated by E=mc^2.


23. What is work energy theorem and what is its significance?
Sum of the torques equal zero.
Convex
Work is the change in kinetic energy. Work transfers energy to and from a body
Concave


24. What kind of mirror has a positive focus?
Concave
The electric force (Coulomb's Law) can attract and repel and it depends on charge. Universal Gravity depends on mass and always attracts.
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.
Bends waves around small objects and the interference of waves from a coherent sources.


25. What is impulse?
The measure of the average kinetic energy of the molecules.
Impulse is the change in momentum
Potential energy stored in gravity (PE = mgh)
m^3/s


26. 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


27. 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


28. What is transmutation?
velocity
It is when a nucleon changes properties. Like a neutron changing into a proton.
Concave
When the body rests on a surface.


29. What is the difference between elastic and inelastic collisions? State the relevant equations for each.

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


30. 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


31. Condition for no rotation
Torque
Weight ...w=mg
Sum of the torques equal zero.
The NET work BY a system is the area enclosed in a cycle on a PV diagram.


32. What is an object placed when the distance between it and the mirror is positive?
A displacement must occur. ( W=Fd)
A change in the gas' temperature.
convex mirrors are diverging mirrors.
In front of the mirror - in the light.


33. What is the direction of the centripetal force?
The incoming light (electromagnetic wave) has the same frequency as some of the electrons.
A1v1=a2v2
The centripetal force points along the radius towards the center of the circle.
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.


34. S.I. Unit of electric force
Newton
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
Speed ups
Atomic number is the number of protons. Atomic mass number is the number of nucleons - (protons and neutrons.)


35. Which type of radiation has the lowest energy?
W=qV where 'W' is the work - 'q' is the charge and 'V' is the potential difference measured in Volts.
The electron
A motor uses energy to spin the coils in a magnetic field. A generator spins the coils to create an potential difference.
Alpha


36. What causes resistance?
Obstacles in the path of the flow of charges.
The initial velocity - (Vo in the formulas)
Longitudinal Wave: Sound wave - Transverse Wave: Light wave - 'The Wave' in a a crowd at a porting event.
Diverging lenses have a negative focal length.


37. How can total momentum be calculated?
Vy=Vyo + gt ...Watch the signs.
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
Adding the momentum of all the bodies.
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.


38. How is the net work of a system (gas) measured?
The initial velocity - (Vo in the formulas)
The NET work BY a system is the area enclosed in a cycle on a PV diagram.
Force= Pressure/Area
The thicker the wire - the lower the resistance.


39. S.I. unit of momentum
A displacement must occur. ( W=Fd)
kg•m/s
Newton
Only 1/2 a wavelength fits in the tube. L=wavelength/2


40. S.I. unit of work
Joule
Zero.
The bending of light
The charge on each capacitor.


41. What causes radioactivity?
Convex
Atmospheric pressure
The release of a particle or photon from an UNSTABLE nucleus.
m^3/s


42. Unit of energy for electricity.
The acceleration is towards the center. It is supplied by the normal force and points towards the center.
The particle travels in a circle. Radius=momentum/qB
V - a Joule/Coulomb
Longitudinal Wave: Sound wave - Transverse Wave: Light wave - 'The Wave' in a a crowd at a porting event.


43. How is a force's direction oriented compared to a bodies direction of motion to get a circular (curved) path of motion?
Converging lenses have a positive focal length.
The bouncing of light
The force is perpendicular to the motion to get a circular path of motion. (Think about centripetal force.)
Conservation of Energy ... because E=hf


44. What is ionization energy and how does it compare to the work function?
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 force that holds the nucleus together.
Electric potential is the potential energy associated with the electric force F=qE
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


45. What is force times the parallel diplacement?
According to Coulomb's Law - the new force is 6/4 times the old charge.
But placing more obstacles in the path of the charge's flow.
Work
A change in the gas' temperature.


46. What does light absorption involve?
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.
The incoming light (electromagnetic wave) has the same frequency as some of the electrons.
Work done 'BY' the gas.
Same number of protons by a different number of neutrons. e.g. Carbon-12 versus Carbon-14


47. How does impulse relate to force?
Open right hand rule
Impulse is (force)(time)
KE=(3/2)kT where k is Boltzman's constant
Sum of the torques equal zero.


48. What is Huygen's Principle?
Convex
Every point on a wave front is a secondary source.
The charge on each capacitor.
Sum of all the energy forms before a condition equals the sum of all the energy forms after the condition.


49. What is the area under the velocity time graph?
Displacement
The electron
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.
frequency (Think of the color as not changing.)


50. What is the derived equation for the ACCELERATION of gravity in terms of m and 'r' squared?
KE=Work
G(M:earth)/r^2 ...force of gravity = G(M:earth)(M:body)/r^2
The higher the temperature the higher the resistance. They are proportional to each other.
The energy required to remove an electron or nucleon from a molecule.