Test your basic knowledge |

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. When is sum of force (net force) zero?
When a body is moving at a constant velocity or not moving at all.
Alpha - Beta - and Gamma
P=IV
F=kq1q2/R^2

2. How much work is the work done on an object moving in a circle? Why?
E=kq/r^2 This is the electric field's magnitude at a point in space.
Zero. Because the displacement is perpendicular to the force (centripetal force.)
A change in the gas' temperature.
G(M:earth)/r^2 ...force of gravity = G(M:earth)(M:body)/r^2

3. What stays the same for resistors or capacitors in parallel?
Change in voltage across the resistor or capacitor.
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.
Alpha - Beta - and Gamma
Diverging

4. What causes radioactivity?
Ohm's Law: V=IR
'q' is a single particle's charge and 'Q' is the sum of all the charges. Q=q1+q2+q3+q4...
The release of a particle or photon from an UNSTABLE nucleus.
When the object is beyond the focus for a concave mirror.

5. What shape is a diverging mirror?
But placing more obstacles in the path of the charge's flow.
The CHANGE in velocity.
Atomic mass number minus atomic number.
convex mirrors are diverging mirrors.

6. What is the electric field's magnitude inside of a container made from an electrical INSULATOR?
The initial velocity - (Vo in the formulas)
Work of a system is equal to 1-Qc/Qh
Something other than zero.
KE=Work

7. Define Refraction
Broad bright spot in the middle and alternating dark and light spots to the sides.
Heat - (the 'Q' variable) - is POSITIVE when thermal energy is being ADDED to a system.
ZERO. Because the force is perpendicular to the displacement . (Open right hand rule.)
The bending of light

8. What comprises beta radiation?
The velocity is positive
'q' is a single particle's charge and 'Q' is the sum of all the charges. Q=q1+q2+q3+q4...
Impulse is the change in momentum
The release of an electron and antineutrino or the release of a positron and a neutrino.

9. State the significance of Young's Experiment.
Impulse is (force)(time)
The release of an electron and antineutrino or the release of a positron and a neutrino.
Provided experimental proof of the wave property of light.
Adding the momentum of all the bodies.

10. 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

11. What are the three types of radiation?
Heat - (the 'Q' variable) - is POSITIVE when thermal energy is being ADDED to a system.
N•m
Alpha - Beta - and Gamma
Light must travel from more to less dense so the refracted ray can bend away from the normal.

12. 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?
Broad bright spot in the middle and alternating dark and light spots to the sides.
Energy and mass are equated by E=mc^2.
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.
Transverse waves: The displacement is perpendicular to the wave's motion. Longitudinal waves: The displacement is in the direction of the wave's motion.

13. 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.
An adiabatic process is where no thermal energy is transfered between the system and its surroundings.
Emf is the maximum available energy per charge at the terminal of a power source. Voltage is the actual available energy per charge at the terminals of a power source. Some energy is lost due to the source internal resistance.
ZERO

14. What is the area under the acceleration versus time graph?
When a body's speed is changing.
Convex
DU = Q+W ...dU:of the environment = Q:from the environment + W:by the environment
The CHANGE in velocity.

15. 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

16. Which kind of mirror can show a real image?
Emf is the maximum available energy per charge at the terminal of a power source. Voltage is the actual available energy per charge at the terminals of a power source. Some energy is lost due to the source internal resistance.
Concave
Newton
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.

17. What cause an electromagnetic wave - and what makes the wave propagate indefinitely even in a vacuum?
The initial velocity - (Vo in the formulas)
The release of an electron and antineutrino or the release of a positron and a neutrino.
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.
Lenses that are thinner in the middle than on the edges.

18. When light travels from LESS dense to a MORE dense mediums - how does the refracted ray bend in relation to the normal line?
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.
The graph of force vs displacement
Diverging
the refracted ray bends TOWARDS the normal line.

19. What force is always present - and what is its equation?
Weight ...w=mg
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.
V - a Joule/Coulomb
Diverging lenses have a negative focal length.

20. Formula for the electric field at point in space for a single point charge.
E=kq/R^2
wave speed = (wavelength)(frequency)
Lenses that are thinner in the middle than on the edges.
W=qV

21. What is an isothermal process - and what is its impact on the first law of thermodynamics?
The volume under water
ZERO
The centripetal force is the net force. It's magnitude is calculated from F=ma where 'a' is the centripetal force.
The PVT conditions change for a gas without changing the temperature.

22. How is tube length and wavelength related for a tube that is closed on ONE end?
Newton
Only 1/4 wavelength fits in the tube. L=wavelength/4
Converging lenses have a positive focal length.
Sum of all the energy forms before a condition equals the sum of all the energy forms after the condition.

23. What direction controls time in falling body and projectile motion problems?
Sum of the torques equal zero.
Vertical direction
Parallel. Because the plates are shared.
The motion of the molecules in gas.

24. What are the two rules for ray tracing in lenses that work all the time?
dU = zero. The change in temperature of the gas is zero.
(1) Straight through the vertex. (2) Parallel then through the primary focus.
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
PV=nRT and PV=kT

25. What shape is a converging mirrors?
It is the time for 1/2 a substance to decay by radioactive processes.
Concave mirrors are converging mirrors.
Lenses that are fatter in the middle than on the edges.
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.

26. What is work energy theorem and what is its significance?
A displacement must occur. ( W=Fd)
THe force that holds the nucleus together.
The movement of charges is the current and it is measures by the number of charges per second at a point.
Work is the change in kinetic energy. Work transfers energy to and from a body

27. What is the order of the electromagnetic spectrum?
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.
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.
Convex
E=hf ...E=energy of a single photon (J) - h = Plank's constant - f=frequency (Hz)

28. What did Thompson discover?
The electron
g=zero so h=(Vyo)t
(1) Bounced off the vertex. (2) Parallel the through the focus. (3) Through the focus and parallel.
According to Coulomb's Law - the new force is 6/4 times the old charge.

29. Under what conditions is mechanical work positive?
W=qV where 'W' is the work - 'q' is the charge and 'V' is the potential difference measured in Volts.
Alpha
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.
Work is positive when the force and displacement point in the same direction.

30. Define reflection
kg•m/s
The bouncing of light
Parallel. Because the plates are shared.
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.

31. Under what conditions does entropy increase?
The acceleration is towards the center. It is supplied by the normal force and points towards the center.
(Cross-sectional Area)(Velocity)
But placing more obstacles in the path of the charge's flow.
Entropy always increases.

32. 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
Change in voltage across the resistor or capacitor.
It is when a nucleon changes properties. Like a neutron changing into a proton.

33. What does the pattern look like in a Young's Double Slit diffraction pattern?
the refracted ray bends AWAY from the normal line.
Resistance: R=R1+R2+R3+...
Dark in the middle and alternating light and dark spots after that.
F=qE

34. When are f - p - q - ho - hi - and M positive for mirrors?
ROY-G-BIV: Red - Orange - Yellow - Green - Blue - Indigo - Violet
When a body is moving at a constant velocity or not moving at all.
When the object is beyond the focus for a concave mirror.
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.

35. What is internal energy?
The motion of the molecules in gas.
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.
DU = Q+W ...dU:of the environment = Q:from the environment + W:by the environment
Alpha

36. What kind of image do you get when the object is placed at the focus?
convex mirrors are diverging mirrors.
Joule
No image.
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.

37. Formula for work as a charged particle travels across two charged plates
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
KE=(3/2)kT where k is Boltzman's constant
W=qV
E=hf

38. Under what conditions is work by a system ( gas) positive?
Work by a system is positive when the gas expands. (The volume increases.)
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.
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 movement of charges is the current and it is measures by the number of charges per second at a point.

39. What is the direction of the centripetal acceleration?
The initial velocity - (Vo in the formulas)
When a body's speed is changing.
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)
The velocity is positive

40. How is the centripetal force represented in a free body diagram?
It is the net force pointing towards the center.
The acceleration is towards the center. It is supplied by the normal force and points towards the center.
W=qV
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.

41. Buoyancy
The PVT conditions change for a gas without changing the temperature.
Break it up into x and y components using trig - add up the components.
DU = Q+W ...dU:of the environment = Q:from the environment + W:by the environment
Force lifting a body when it is in a fluid.

42. S.I. Unit of electric force
KE = (3/2)kT
Newton
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.
Impulse

43. What do you know about two objects that are launched at different horizontal velocities?
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.
Adding the momentum of all the bodies.
They fall - vertically - the by the same amount in the same time.
The acceleration is towards the center. It is supplied by the normal force and points towards the center.

44. What quantity stays the same for resistors in series?
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.
Only 1/4 wavelength fits in the tube. L=wavelength/4
Current stays the same for resistors in series.
Emf is the maximum available energy per charge at the terminal of a power source. Voltage is the actual available energy per charge at the terminals of a power source. Some energy is lost due to the source internal resistance.

45. What is electromagnetic induction?
system is the gas being studied. Environment is the surroundings outside the gas.
Electromagnetic induction is the generation of an Emf by moving a conductor through a magnetic field. emf=change in flux/dt
The bending of light
Work done 'BY' the gas.

46. How is the direction of the force on a current carrying wire calculated?
Bends waves around small objects and the interference of waves from a coherent sources.
Heat - (the 'Q' variable) - is NEGATIVE when thermal energy is being REMOVED from a system.
P=IV
Open right hand rule

47. S.I. unit of pressure
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.
Pascal
Velocity has a direction and speed does not have direction.
(n1)sin(theta1) = (n2)sin(theta2)

48. What is meant by the terms system and environment?
Change in voltage across the resistor or capacitor.
The nucleus
Bends waves around small objects and the interference of waves from a coherent sources.
system is the gas being studied. Environment is the surroundings outside the gas.

49. What is temperature?
Current stays the same for resistors in series.
Pascal
The measure of the average kinetic energy of the molecules.
m=(rho)V

50. What is the name given to the distance between the pivot point and applied perpendicular force?
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 longer the length of wire - the higher the resistance.
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.
Moment arm