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. Under what conditions is heat negative?

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


2. What shapes are converging lenses?
Parallel. Because the plates are shared.
Lenses that are fatter in the middle than on the edges.
Heat - (the 'Q' variable) - is POSITIVE when thermal energy is being ADDED to a system.
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.


3. Formula for the electric force felt by a charged particle in an electric field.
Heat - (the 'Q' variable) - is POSITIVE when thermal energy is being ADDED to a system.
F=qE
Electric potential is the potential energy associated with the electric force F=qE
V=Vo + at ...The word 'dropped' means no initial velocity.


4. What stays the same for capacitors in series?
Newton
The charge on each capacitor.
Work
The refracted light ray is bent 90°. (Parallel to the interface surface.)


5. This is the gauge pressure when under water.
(rho)gh
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.
The measure of the average kinetic energy of the molecules.
But placing more obstacles in the path of the charge's flow.


6. 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


7. Define diffraction
Bends waves around small objects and the interference of waves from a coherent sources.
(1) Straight through the vertex. (2) Parallel then through the primary focus.
Alpha
The electric field forces charges to move.


8. Energy of a SINGLE photon
E=hf
Every point on a wave front is a secondary source.
KE=(3/2)kT where k is Boltzman's constant
The graph of force vs displacement


9. 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


10. What quantity stays the same for resistors in series?
The nucleus
'q' is a single particle's charge and 'Q' is the sum of all the charges. Q=q1+q2+q3+q4...
Current stays the same for resistors in series.
the refracted ray bends AWAY from the normal line.


11. Define Snell's law.
Tesla
(n1)sin(theta1) = (n2)sin(theta2)
ZERO. Because the force is perpendicular to the displacement . (Open right hand rule.)
KE=Work


12. What is implied when an object is not accelerating in the x direction?
The body is moving at a constant velocity
Convex
convex mirrors are diverging mirrors.
Velocity has a direction and speed does not have direction.


13. What is the order of the visible range electromagnetic spectrum?
When a body is moving at a constant velocity or not moving at all.
The energy required to remove an electron or nucleon from a molecule.
ROY-G-BIV: Red - Orange - Yellow - Green - Blue - Indigo - Violet
Electric potential is the potential energy associated with the electric force F=qE


14. What did Thompson discover?
The electron
Joule
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.
Only 1/4 wavelength fits in the tube. L=wavelength/4


15. Which kind of mirror always has a virtual image?
THe force that holds the nucleus together.
The release of a Helium nuclei - 4 -2 He2+
Convex
The energy required to remove an electron or nucleon from a molecule.


16. How is a force's direction oriented compared to a bodies direction of motion to get a circular (curved) path of motion?
Longitudinal Wave: Sound wave - Transverse Wave: Light wave - 'The Wave' in a a crowd at a porting event.
The PVT conditions change for a gas without changing the temperature.
The force is perpendicular to the motion to get a circular path of motion. (Think about centripetal force.)
The measure of the average kinetic energy of the molecules.


17. Formula for the potential difference of a point charge as compared to infinity.
The initial velocity - (Vo in the formulas)
Light must travel from more to less dense so the refracted ray can bend away from the normal.
Only 1/2 a wavelength fits in the tube. L=wavelength/2
V=kq/R


18. What is force times the perpendicular distance?
Convex
DU = Q+W ...dU:of the environment = Q:from the environment + W:by the environment
Torque
Zero. Because the displacement is perpendicular to the force (centripetal force.)


19. S.I. unit of work
Zero.
Work by a system is negative when the gas contracts. (The volume decreases.)
The thicker the wire - the lower the resistance.
Joule


20. When is sum of force (net force) NOT zero?

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


21. Under what conditions does entropy increase?
Longitudinal Wave: Sound wave - Transverse Wave: Light wave - 'The Wave' in a a crowd at a porting event.
Entropy always increases.
(1) The image is larger than the object: ho>hi. (2) image is upright.
The energy required to remove an electron or nucleon from a molecule.


22. What shape is a diverging mirror?
Electric potential is the potential energy associated with the electric force F=qE
The initial velocity - (Vo in the formulas)
convex mirrors are diverging mirrors.
(n1)sin(theta1) = (n2)sin(theta2)


23. S.I. unit of every kind of energy
Joule
When the object is beyond the focus for a concave mirror.
E=V/d
Provided experimental proof of the wave property of light.


24. How does the speed change when the pressure is decreased?
When the object is beyond the focus for a concave mirror.
The initial velocity - (Vo in the formulas)
Potential difference is the change in energy of a charged particle divided by its charge.
Speed ups


25. What is the energy equation for the change in temperature if it results from a loss in KE?

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


26. What is the direction of the centripetal acceleration?
N/C
x=Vo + ((1/2)g)sin(angle)t^2
Alpha - Beta - and Gamma
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)


27. S.I. unit of Flow rate
m^3/s
Conservation of Energy ... because E=hf
But placing more obstacles in the path of the charge's flow.
Diverging lenses have a negative focal length.


28. What did Rutherford discover?
The nucleus
The centripetal force is the net force. It's magnitude is calculated from F=ma where 'a' is the centripetal force.
C=kEA/d: Increase the area of the plates - decrease the distance between the plates -and increase the dielectric constant between the plates.
They fall - vertically - the by the same amount in the same time.


29. What is work energy theorem and what is its significance?
PV=nRT and PV=kT
Work is the change in kinetic energy. Work transfers energy to and from a body
Joule
the refracted ray bends TOWARDS the normal line.


30. What causes radioactivity?
Gamma
Pendulums depend on the length of the arm and the pull of gravity. springs depend on mass and the spring constant.
The release of a particle or photon from an UNSTABLE nucleus.
(n1)sin(theta1) = (n2)sin(theta2)


31. What kind of mirror has a positive focus?
E=V/d
A1v1=a2v2
Concave
The PVT conditions change for a gas without changing the temperature.


32. Under what conditions is mechanical work positive?
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.
Work is positive when the force and displacement point in the same direction.
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
It is the time for 1/2 a substance to decay by radioactive processes.


33. Unit of energy for electricity.
V - a Joule/Coulomb
Velocity has a direction and speed does not have direction.
the refracted ray bends TOWARDS the normal line.
Bends waves around small objects and the interference of waves from a coherent sources.


34. State the significance of Young's Experiment.
The release of a particle or photon from an UNSTABLE nucleus.
Converging lenses have a positive focal length.
Provided experimental proof of the wave property of light.
W = KE:final - KE:initial


35. What doesn't change (speed - frequency - or wavelength) - when light moves from one medium to another?
frequency (Think of the color as not changing.)
the refracted ray bends TOWARDS the normal line.
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.
A potential difference and a flow and energized charges.


36. Buoyancy
(1) Bounced off the vertex. (2) Parallel the through the focus. (3) Through the focus and parallel.
In front of the mirror - in the light.
E=hf ...E=energy of a single photon (J) - h = Plank's constant - f=frequency (Hz)
Force lifting a body when it is in a fluid.


37. What is the y intercept of the velocity time graph?
Work
The particle travels in a circle. Radius=momentum/qB
The initial velocity - (Vo in the formulas)
Potential difference is the change in energy of a charged particle divided by its charge.


38. What comprises beta radiation?
The release of an electron and antineutrino or the release of a positron and a neutrino.
Vx=(Vxo)t ...Recall that there is no acceleration in the horizontal direction.
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.
A displacement must occur. ( W=Fd)


39. What is the area under the acceleration versus time graph?
P=IV
The CHANGE in velocity.
The electric force (Coulomb's Law) can attract and repel and it depends on charge. Universal Gravity depends on mass and always attracts.
It is when a nucleon changes properties. Like a neutron changing into a proton.


40. What are the three types of radiation?
Entropy always increases.
It is when a nucleon changes properties. Like a neutron changing into a proton.
Alpha - Beta - and Gamma
Provided experimental proof of the wave property of light.


41. 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


42. What is the work done on a charged particle by the magnetic field? Why?
Lost kinetic energy is work. It is calculated from Fd or KE:final - KE:initial
g=zero so h=(Vyo)t
ZERO. Because the force is perpendicular to the displacement . (Open right hand rule.)
Gamma


43. Force in terms of pressure
Force= Pressure/Area
Weight ...w=mg
V=kq/R
Force lifting a body when it is in a fluid.


44. What conservation law dictates that the frequency of light cannot change as it travels between mediums?
Conservation of Energy ... because E=hf
Dark in the middle and alternating light and dark spots after that.
Impulse
The motion of the molecules in gas.


45. What quantity ADDS for resistors in series?
Convex
Resistance: R=R1+R2+R3+...
Diverging
The centripetal force is the net force. It's magnitude is calculated from F=ma where 'a' is the centripetal force.


46. Under what conditions is work by a system ( gas) positive?
Obstacles in the path of the flow of charges.
Work by a system is positive when the gas expands. (The volume increases.)
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.
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)


47. S.I. unit of power
Alpha
KE=(3/2)kT where k is Boltzman's constant
According to Coulomb's Law - the new force is 6/4 times the old charge.
Watt


48. In uniform circular motion - how is tangential velocity calculated?
When a body is moving at a constant velocity or not moving at all.
N•m
2(pi)R/T ...Circumference/Period
G(M:earth)/r^2 ...force of gravity = G(M:earth)(M:body)/r^2


49. S.I. Unit of electric force
Only 1/4 wavelength fits in the tube. L=wavelength/4
A1v1=a2v2
Newton
The force is perpendicular to the motion to get a circular path of motion. (Think about centripetal force.)


50. 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