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 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


2. Describe the relationship between Qh - Qc - and W in a heat engine?
That the orbits of the electrons are like planets around the Sun.
Work of a system is equal to 1-Qc/Qh
Only 1/4 wavelength fits in the tube. L=wavelength/4
Convex


3. How does thickness effect resistance?
The thicker the wire - the lower the resistance.
Diverging lenses have a negative focal length.
Force lifting a body when it is in a fluid.
Tesla


4. 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


5. What is electromagnetic induction?
V=kq/R
Work is the change in kinetic energy. Work transfers energy to and from a body
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.
Electromagnetic induction is the generation of an Emf by moving a conductor through a magnetic field. emf=change in flux/dt


6. What shape is a converging mirrors?
Concave mirrors are converging mirrors.
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.
'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.
Watt


7. 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


8. Electric force felt by a charge due to another charge.
The bending of light
Diverging lenses have a negative focal length.
F=kq1q2/R^2
W=qV where 'W' is the work - 'q' is the charge and 'V' is the potential difference measured in Volts.


9. In a pendulum or spring - what are the displacement - velocity - PE and KE at the equilibrium position?
Entropy always increases.
The incoming light (electromagnetic wave) has the same frequency as some of the electrons.
The movement of charges is the current and it is measures by the number of charges per second at a point.
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.


10. What is the area under the velocity time graph?
The centripetal force points along the radius towards the center of the circle.
Tesla
A potential difference and a flow and energized charges.
Displacement


11. 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


12. Which type of radiation has the highest energy?
Work done 'BY' the gas.
E=V/d
frequency (Think of the color as not changing.)
Gamma


13. What is the law of reflection?
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)
Initial velocity
Diverging lenses have a negative focal length.


14. Buoyancy
Force lifting a body when it is in a fluid.
Work is the change in kinetic energy. Work transfers energy to and from a body
Conservation of Energy ... because E=hf
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.


15. Force in terms of pressure
Lost kinetic energy is work. It is calculated from Fd or KE:final - KE:initial
Pendulums depend on the length of the arm and the pull of gravity. springs depend on mass and the spring constant.
Light must travel from more to less dense so the refracted ray can bend away from the normal.
Force= Pressure/Area


16. What is the impact on the first law of thermodynamics for an isothermal process?
Diverging lenses have a negative focal length.
The incoming light (electromagnetic wave) has the same frequency as some of the electrons.
dU = zero. The change in temperature of the gas is zero.
Electric potential is the potential energy associated with the electric force F=qE


17. What is implied when an object is not accelerating in the y direction?
Same number of protons by a different number of neutrons. e.g. Carbon-12 versus Carbon-14
Newton
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.
g=zero so h=(Vyo)t


18. Continuity equation
An adiabatic process is where no thermal energy is transfered between the system and its surroundings.
The electron
A1v1=a2v2
Something other than zero.


19. How is a force's direction oriented compared to a bodies direction of motion to get a circular (curved) path of motion?
E=hf ...E=energy of a single photon (J) - h = Plank's constant - f=frequency (Hz)
The force is perpendicular to the motion to get a circular path of motion. (Think about centripetal force.)
Convex
E=V/d


20. S.I. unit of flux
Impulse
Weber
KE = (3/2)kT
Newton


21. How is tube length and wavelength related for a tube that is closed on ONE end?
kg•m/s
Only 1/4 wavelength fits in the tube. L=wavelength/4
The energy required to remove an electron or nucleon from a molecule.
Newton


22. What are the two rules for ray tracing in lenses that work all the time?
frequency (Think of the color as not changing.)
Alpha
(1) Straight through the vertex. (2) Parallel then through the primary focus.
W=qV


23. In a pendulum or spring - what are the displacement - velocity - PES - and K at maximum displacement?
Work done 'BY' the gas.
The particle travels in a circle. Radius=momentum/qB
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.
Current stays the same for resistors in series.


24. How are velocity and speed different?
Velocity has a direction and speed does not have direction.
(n1)sin(theta1) = (n2)sin(theta2)
Displacement
F=qE


25. What is the relationship between power - voltage and current?
Dark in the middle and alternating light and dark spots after that.
When the body rests on a surface.
P=IV
kg•m/s


26. Which type of lenses have a POSITIVE focal length?
Torque
Converging lenses have a positive focal length.
Concave mirrors are converging mirrors.
Atomic mass number minus atomic number.


27. What is force times the perpendicular distance?
Torque
The transfer of thermal energy
The initial velocity - (Vo in the formulas)
Atomic number is the number of protons. Atomic mass number is the number of nucleons - (protons and neutrons.)


28. Unit of electric field
(1) The image is larger than the object: ho>hi. (2) image is upright.
N/C
Initial velocity
When a body's speed is changing.


29. What is acceleration?
The CHANGE in velocity.
How quickly you change velocity.
(1) The image is larger than the object: ho>hi. (2) image is upright.
When the body rests on a surface.


30. 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.)
wave speed = (wavelength)(frequency)
Newton
Atomic number is the number of protons. Atomic mass number is the number of nucleons - (protons and neutrons.)


31. S.I. unit of every kind of energy
E=hf ...E=energy of a single photon (J) - h = Plank's constant - f=frequency (Hz)
Joule
The motion of the molecules in gas.
Impulse


32. Define diffraction
m=(rho)V
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.
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.
Bends waves around small objects and the interference of waves from a coherent sources.


33. What is the strong force?
kg•m/s
N/C
Lost kinetic energy is work. It is calculated from Fd or KE:final - KE:initial
THe force that holds the nucleus together.


34. What is an isotope?
A change in the gas' temperature.
Electromagnetic induction is the generation of an Emf by moving a conductor through a magnetic field. emf=change in flux/dt
Same number of protons by a different number of neutrons. e.g. Carbon-12 versus Carbon-14
KE=(3/2)kT where k is Boltzman's constant


35. What does the term electric potential energy mean?
(1) Straight through the vertex. (2) Parallel then through the primary focus.
A displacement must occur. ( W=Fd)
The electric field forces charges to move.
Electric potential is the potential energy associated with the electric force F=qE


36. What does light emission involve?
Force lifting a body when it is in a fluid.
Electromagnetic wave exits the electrons to a higher orbital. When the electron relaxes - a wavelength of light is given off.
The centripetal force is the net force. It's magnitude is calculated from F=ma where 'a' is the centripetal force.
'q' is a single particle's charge and 'Q' is the sum of all the charges. Q=q1+q2+q3+q4...


37. State the significance of Young's Experiment.
The velocity is positive
KE=Work
Provided experimental proof of the wave property of light.
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.


38. What equation describes the distance that a horizontally launched projectile falls t seconds after it started moving?
x=(1/2)at^2 ...Horizontal velocity does not affect the time of fall.
KE=(3/2)kT where k is Boltzman's constant
Converging lenses have a positive focal length.
A1v1=a2v2


39. S.I. unit of momentum
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.
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.
kg•m/s
Impulse is (force)(time)


40. How does temperature effect resistance?
Lenses that are fatter in the middle than on the edges.
The higher the temperature the higher the resistance. They are proportional to each other.
Joule
The release of an electron and antineutrino or the release of a positron and a neutrino.


41. Formula for the potential difference of a point charge as compared to infinity.
G(M:earth)/r^2 ...force of gravity = G(M:earth)(M:body)/r^2
V=kq/R
wave speed = (wavelength)(frequency)
system is the gas being studied. Environment is the surroundings outside the gas.


42. Gauge Pressure

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


43. What quantity is calculated from slope of the displacement versus time graph?
F=qE
It is when a nucleon changes properties. Like a neutron changing into a proton.
That the orbits of the electrons are like planets around the Sun.
velocity


44. S.I. unit of torque
N•m
Provided experimental proof of the wave property of light.
G(M:earth)/r^2 ...force of gravity = G(M:earth)(M:body)/r^2
Sum of the torques equal zero.


45. What comprises beta radiation?
Tesla
Joule
The release of an electron and antineutrino or the release of a positron and a neutrino.
the refracted ray bends TOWARDS the normal line.


46. S.I. unit of frictional force
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.
Newton
Work by a system is positive when the gas expands. (The volume increases.)
Lenses that are fatter in the middle than on the edges.


47. What is the energy equation if a force (friction) through a distance results in heat and thus a change in temperature?
KE = (3/2)kT
KE=Work
Joule
In front of the mirror - in the light.


48. What cause an electromagnetic wave - and what makes the wave propagate indefinitely even in a vacuum?
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.
Impulse is (force)(time)
Lenses that are fatter in the middle than on the edges.
The NET work BY a system is the area enclosed in a cycle on a PV diagram.


49. 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


50. What doesn't change (speed - frequency - or wavelength) - when light moves from one medium to another?
frequency (Think of the color as not changing.)
Same number of protons by a different number of neutrons. e.g. Carbon-12 versus Carbon-14
Diverging
The refracted light ray is bent 90°. (Parallel to the interface surface.)