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 binding energy?
The energy required to remove an electron or nucleon from a molecule.
The release of a particle or photon from an UNSTABLE nucleus.
The motion of the molecules in gas.
Work done 'BY' the gas.


2. What is the horizontal acceleration of projectiles?
ZERO
Pgh ..thats ('rho')(gravity's acceleration)(height)
Initial velocity
The release of a Helium nuclei - 4 -2 He2+


3. What is the electric field's magnitude inside of a container made from an electrical CONDUCTOR?
Electric potential is the potential energy associated with the electric force F=qE
dU = zero. The change in temperature of the gas is zero.
Work by a system is positive when the gas expands. (The volume increases.)
Zero.


4. What kind of mirror has a positive focus?
Concave
system is the gas being studied. Environment is the surroundings outside the gas.
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
A1v1=a2v2


5. 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


6. What forces charges to move?
Conservation of Energy ... because E=hf
The electric field forces charges to move.
Diverging lenses have a negative focal length.
Work of a system is equal to 1-Qc/Qh


7. What is ionization energy and how does it compare to the work function?
Concave
The acceleration is towards the center. It is supplied by the normal force and points towards the center.
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
The light travels through the image.


8. Pressure of an open container at the opening.
Power ... Power equals the change in energy over time.
Atomic number is the number of protons. Atomic mass number is the number of nucleons - (protons and neutrons.)
Torque
Atmospheric pressure


9. What did Rutherford discover?
The nucleus
The incoming light (electromagnetic wave) has the same frequency as some of the electrons.
In front of the mirror - in the light.
The centripetal force points along the radius towards the center of the circle.


10. Define reflection
The bouncing of light
Concave
dU = zero. The change in temperature of the gas is zero.
g=zero so h=(Vyo)t


11. What is the Bohr Model of the atom?
Joule
V=Vo + at ...The word 'dropped' means no initial velocity.
The refracted light ray is bent 90°. (Parallel to the interface surface.)
That the orbits of the electrons are like planets around the Sun.


12. How is the force on a charged particle in a magnetic field creating the path calculated?
The force is perpendicular to the motion. This always results in a curved path. (Open right hand rule)
KE = (3/2)kT
Work by a system is positive when the gas expands. (The volume increases.)
V=Vo + at ...The word 'dropped' means no initial velocity.


13. What is the energy equation if a force (friction) through a distance results in heat and thus a change in temperature?
velocity
'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.
KE=Work
KE = (3/2)kT


14. What did Thompson discover?
The electron
V=Vo + at ...The word 'dropped' means no initial velocity.
The force is perpendicular to the motion to get a circular path of motion. (Think about centripetal force.)
Work by a system is negative when the gas contracts. (The volume decreases.)


15. S.I. unit of gravitational force
It is used in Lenz's Law to determine the change in flux of a conductor.
Sum of the torques equal zero.
The body is moving at a constant velocity
Newton


16. What is the path of a charged particle in a magnetic field?
The CHANGE in velocity.
Every point on a wave front is a secondary source.
Only 1/2 a wavelength fits in the tube. L=wavelength/2
The particle travels in a circle. Radius=momentum/qB


17. S.I. unit of Flow rate
Displacement
KE=Work
The centripetal force is the net force. It's magnitude is calculated from F=ma where 'a' is the centripetal force.
m^3/s


18. What equation describes the speed in the y-direction of a projectile 't' seconds after it started moving?
They fall - vertically - the by the same amount in the same time.
Electromagnetic wave exits the electrons to a higher orbital. When the electron relaxes - a wavelength of light is given off.
The higher the temperature the higher the resistance. They are proportional to each other.
Vy=Vyo + gt ...Watch the signs.


19. What does the pattern look like in a Young's Single Slit diffraction pattern?
Work is positive when the force and displacement point in the same direction.
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.
Electric potential is the potential energy associated with the electric force F=qE
Broad bright spot in the middle and alternating dark and light spots to the sides.


20. How is the direction of the force on a current carrying wire calculated?
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.
Convex
A1v1=a2v2
Open right hand rule


21. In a pendulum or spring - what are the displacement - velocity - PES - and K at maximum displacement?
Vx=(Vxo)t ...Recall that there is no acceleration in the horizontal direction.
Only 1/4 wavelength fits in the tube. L=wavelength/4
The release of an electron and antineutrino or the release of a positron and a neutrino.
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.


22. What is the work done on a charged particle by the magnetic field? Why?
(1) The image is larger than the object: ho>hi. (2) image is upright.
The measure of the average kinetic energy of the molecules.
It is the net force pointing towards the center.
ZERO. Because the force is perpendicular to the displacement . (Open right hand rule.)


23. What is Kinetic Energy lost and how is it calculated?
A displacement must occur. ( W=Fd)
Lost kinetic energy is work. It is calculated from Fd or KE:final - KE:initial
The force is perpendicular to the motion. This always results in a curved path. (Open right hand rule)
Vertical direction


24. What do you know about two objects that are launched at different horizontal velocities?
Pendulums depend on the length of the arm and the pull of gravity. springs depend on mass and the spring constant.
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.
The force is perpendicular to the motion to get a circular path of motion. (Think about centripetal force.)
They fall - vertically - the by the same amount in the same time.


25. How must the mediums light is traveling through be arranged so that the condition for the critical angle can exist?
The light travels through the image.
velocity
Light must travel from more to less dense so the refracted ray can bend away from the normal.
Conservation of Energy ... because E=hf


26. Continuity equation
A1v1=a2v2
dU = zero. The change in temperature of the gas is zero.
(1) Bounced off the vertex. (2) Parallel the through the focus. (3) Through the focus and parallel.
Electromagnetic induction is the generation of an Emf by moving a conductor through a magnetic field. emf=change in flux/dt


27. Under what conditions is heat positive?

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


28. 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


29. Energy of a SINGLE photon
E=hf
Watt
Torque
(1) Bounced off the vertex. (2) Parallel the through the focus. (3) Through the focus and parallel.


30. What is work energy theorem and what is its significance?
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.
g=zero so h=(Vyo)t
Work is the change in kinetic energy. Work transfers energy to and from a body
The light travels through the image.


31. S.I. Unit of electric force
Newton
the refracted ray bends TOWARDS the normal line.
E=kq/R^2
Torque


32. What causes resistance?
Joule
Obstacles in the path of the flow of charges.
The centripetal force is the net force. It's magnitude is calculated from F=ma where 'a' is the centripetal force.
The higher the temperature the higher the resistance. They are proportional to each other.


33. S.I. unit of momentum
The charge on each capacitor.
Atomic mass number minus atomic number.
A motor uses energy to spin the coils in a magnetic field. A generator spins the coils to create an potential difference.
kg•m/s


34. What is internal energy?
The release of a Helium nuclei - 4 -2 He2+
The motion of the molecules in gas.
Vertical direction
Diverging


35. How does thickness effect resistance?
The thicker the wire - the lower the resistance.
According to Coulomb's Law - the new force is 6/4 times the old charge.
When a body's speed is changing.
Atomic mass number minus atomic number.


36. S.I. unit of torque
Ohm's Law: V=IR
Vertical direction
N•m
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.


37. Unit of electric field
Zero.
N/C
N•m
Longitudinal Wave: Sound wave - Transverse Wave: Light wave - 'The Wave' in a a crowd at a porting event.


38. 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


39. Define mass in terms of density.
Adding the momentum of all the bodies.
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)
m=(rho)V
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.


40. What are three ways to increase the capacitance of a capacitor?
C=kEA/d: Increase the area of the plates - decrease the distance between the plates -and increase the dielectric constant between the plates.
Potential difference is the change in energy of a charged particle divided by its charge.
2(pi)R/T ...Circumference/Period
Current stays the same for resistors in series.


41. What do you do with any vector that is not on either the x or y axis?
Break it up into x and y components using trig - add up the components.
Only 1/2 a wavelength fits in the tube. L=wavelength/2
The movement of charges is the current and it is measures by the number of charges per second at a point.
Atmospheric pressure


42. 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


43. What cause an electromagnetic wave - and what makes the wave propagate indefinitely even in a vacuum?
The force is perpendicular to the motion to get a circular path of motion. (Think about centripetal force.)
Convex
DU = Q+W ...dU:of the environment = Q:from the environment + W:by the environment
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.


44. 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


45. What is an object placed when the distance between it and the mirror is positive?
Statistically speaking - energy flows from hot to cold.
Work of a system is equal to 1-Qc/Qh
In front of the mirror - in the light.
m=(rho)V


46. What is the relationship between energy - frequency - and wavelength in any wave?
Initial velocity
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.
When it is on the same side as the image?
E=hf=hc/(wavelength)


47. What is force times the parallel diplacement?
Work
Newton
Atomic number is the number of protons. Atomic mass number is the number of nucleons - (protons and neutrons.)
The charge on each capacitor.


48. What stays the same for capacitors in series?
Current stays the same for resistors in series.
Speed ups
V - a Joule/Coulomb
The charge on each capacitor.


49. 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.
Electric potential is the potential energy associated with the electric force F=qE
Dark in the middle and alternating light and dark spots after that.
E=hf ...E=energy of a single photon (J) - h = Plank's constant - f=frequency (Hz)


50. What is conservation of energy and what is its significance?
The movement of charges is the current and it is measures by the number of charges per second at a point.
F=qE
Sum of all the energy forms before a condition equals the sum of all the energy forms after the condition.
Work is positive when the force and displacement point in the same direction.