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. Force in terms of pressure
V=kq/R
Converging lenses have a positive focal length.
Force= Pressure/Area
Electromagnetic induction is the generation of an Emf by moving a conductor through a magnetic field. emf=change in flux/dt

2. Formula for work as a charged particle travels across two charged plates
(1) The image is larger than the object: ho>hi. (2) image is upright.
W=qV
Potential difference is the change in energy of a charged particle divided by its charge.
Newton

3. What is the relationship that describes the rate that work is done - or that energy is used?
The thicker the wire - the lower the resistance.
Power ... Power equals the change in energy over time.
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.
The charge on each capacitor.

4. What forces charges to move?
E=hf
V=E - IR V=terminal voltage (Volts) - E = emf: electromotiveforce (Volts) - IR = Internal drop in energy per charge (Volts)
The electric field forces charges to move.
A change in the gas' temperature.

5. What is force times the parallel diplacement?
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.
Work
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.
Vy=Vyo + gt ...Watch the signs.

6. Buoyancy
V=kq/R
The energy required to remove an electron or nucleon from a molecule.
Lenses that are fatter in the middle than on the edges.
Force lifting a body when it is in a fluid.

7. Work is the area under which curve?
Diverging
The initial velocity - (Vo in the formulas)
Magnitude and direction
The graph of force vs displacement

8. What is the area under any PV curve?
Force= Pressure/Area
Conservation of Energy ... because E=hf
Work done 'BY' the gas.
When the body rests on a surface.

9. What comprises beta radiation?
The release of an electron and antineutrino or the release of a positron and a neutrino.
Moment arm
The electric force (Coulomb's Law) can attract and repel and it depends on charge. Universal Gravity depends on mass and always attracts.
According to Coulomb's Law - the new force is 6/4 times the old charge.

10. S.I. unit of centripetal force
(n1)sin(theta1) = (n2)sin(theta2)
Newton
Torque
The volume under water

11. What is the order of the electromagnetic spectrum?
(mg)sin(angle)
Concave
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.
Dark in the middle and alternating light and dark spots after that.

12. What is the difference between emf and voltage?
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.
Newton
Lost kinetic energy is work. It is calculated from Fd or KE:final - KE:initial
Lenses that are fatter in the middle than on the edges.

13. What is an object placed when the distance between it and the mirror is positive?
In front of the mirror - in the light.
C=kEA/d: Increase the area of the plates - decrease the distance between the plates -and increase the dielectric constant between the plates.
The transfer of thermal energy
The graph of force vs displacement

14. What is meant by the terms system and environment?
Resistance: R=R1+R2+R3+...
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.
Concave
system is the gas being studied. Environment is the surroundings outside the gas.

15. Formula for the potential difference of a point charge as compared to infinity.
The particle travels in a circle. Radius=momentum/qB
Provided experimental proof of the wave property of light.
Velocity has a direction and speed does not have direction.
V=kq/R

16. Which kind of lens always has a virtual image?
Diverging
E=hf
Pascal
Electric potential is the potential energy associated with the electric force F=qE

17. What shape is a converging mirrors?
In front of the mirror - in the light.
Heat - (the 'Q' variable) - is POSITIVE when thermal energy is being ADDED to a system.
Concave mirrors are converging mirrors.
PV=nRT and PV=kT

18. What quantity is calculated from slope of the displacement versus time graph?
Concave
x=Vo + ((1/2)g)sin(angle)t^2
velocity
THe force that holds the nucleus together.

19. What is the area under the velocity time graph?
The volume under water
Displacement
Concave
Ohm's Law: V=IR

20. What do batteries and generators produce?
Newton
Velocity has a direction and speed does not have direction.
Zero.
A potential difference and a flow and energized charges.

21. What equation describes the speed in the y-direction of a projectile 't' seconds after it started moving?
KE=Work
The bouncing of light
Vy=Vyo + gt ...Watch the signs.
Torque

22. What is the direction of the centripetal acceleration?
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.
Newton
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)
V=kq/R

23. What is Kinetic Energy lost and how is it calculated?
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.
Lost kinetic energy is work. It is calculated from Fd or KE:final - KE:initial
Force= Pressure/Area
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.

24. Unit that means the same thing as Nm
Diverging lenses have a negative focal length.
Joule
The nucleus
C=kEA/d: Increase the area of the plates - decrease the distance between the plates -and increase the dielectric constant between the plates.

25. What is the energy equation for the change in temperature if it results from a loss in KE?
KE=(3/2)kT where k is Boltzman's constant
The electric field forces charges to move.
E=V/d
frequency (Think of the color as not changing.)

26. Formula for work by a car that changes speed on a horizontal road.
Convex
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
W = KE:final - KE:initial
The bouncing of light

27. Average kinetic energy of an ideal gas's SINGLE molecule.
KE = (3/2)kT
kgm/s
Weber
KE=Work

28. What do the period of pendulums and springs each depend on?
Power ... Power equals the change in energy over time.
E=hf
Pendulums depend on the length of the arm and the pull of gravity. springs depend on mass and the spring constant.
E=kq/r^2 This is the electric field's magnitude at a point in space.

29. How is the direction of the force on a current carrying wire calculated?
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.
Work by a system is positive when the gas expands. (The volume increases.)
velocity
Open right hand rule

30. Condition for no rotation
Sum of the torques equal zero.
According to Coulomb's Law - the new force is 6/4 times the old charge.
V=Vo + at ...The word 'dropped' means no initial velocity.
Vx=(Vxo)t ...Recall that there is no acceleration in the horizontal direction.

31. Define mass in terms of density.
m=(rho)V
(n1)sin(theta1) = (n2)sin(theta2)
Pgh ..thats ('rho')(gravity's acceleration)(height)
Electromagnetic wave exits the electrons to a higher orbital. When the electron relaxes - a wavelength of light is given off.

32. How do you find the number of neutrons in an atom?
(Cross-sectional Area)(Velocity)
The bending of light
How quickly you change velocity.
Atomic mass number minus atomic number.

33. How is the magnitude of the force on a current carrying wire calculated?
x=Vo + ((1/2)g)sin(angle)t^2
Newton
Impulse
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.

34. Unit of energy for electricity.
Energy and mass are equated by E=mc^2.
V - a Joule/Coulomb
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.
Parallel. Because the plates are shared.

35. What is electromagnetic induction?
The initial velocity - (Vo in the formulas)
Electromagnetic induction is the generation of an Emf by moving a conductor through a magnetic field. emf=change in flux/dt
Vy=Vyo + gt ...Watch the signs.
Parallel. Because the plates are shared.

36. What stays the same for capacitors in series?
Sum of the torques equal zero.
(mg)sin(angle)
The charge on each capacitor.
'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.

37. 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.
Weber
kgm/s
Joule

38. S.I. unit of torque
Lost kinetic energy is work. It is calculated from Fd or KE:final - KE:initial
Nm
Ohm's Law: V=IR
Force= Pressure/Area

39. How is sum of force (net force) depicted in a free body diagram?
Work is the change in kinetic energy. Work transfers energy to and from a body
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
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.
V=kq/R

40. Define Snell's law.
(n1)sin(theta1) = (n2)sin(theta2)
The initial velocity - (Vo in the formulas)
It is the time for 1/2 a substance to decay by radioactive processes.
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.

41. S.I. unit of momentum
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.
According to Coulomb's Law - the new force is 6/4 times the old charge.
kgm/s
Pgh ..thats ('rho')(gravity's acceleration)(height)

42. What is the second law of thermodynamics?
When it is on the same side as the image?
A displacement must occur. ( W=Fd)
Statistically speaking - energy flows from hot to cold.
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.

43. S.I. unit of every kind of energy
the refracted ray bends AWAY from the normal line.
A change in the gas' temperature.
convex mirrors are diverging mirrors.
Joule

44. When is sum of force (net force) zero?
The release of a particle or photon from an UNSTABLE nucleus.
When a body is moving at a constant velocity or not moving at all.
The higher the temperature the higher the resistance. They are proportional to each other.
Atomic mass number minus atomic number.

45. What is force times time?
Impulse
Entropy always increases.
ZERO
Atmospheric pressure

46. What is the derived equation for the ACCELERATION of gravity in terms of m and 'r' squared?
Concave mirrors are converging mirrors.
Transverse waves: The displacement is perpendicular to the wave's motion. Longitudinal waves: The displacement is in the direction of the wave's motion.
G(M:earth)/r^2 ...force of gravity = G(M:earth)(M:body)/r^2
Torque

47. This is used to determine the speed of a fluid when the pipe slopes up or down.
Bernoulli's equation - Flow Rate = Volume/time
Sum of all the energy forms before a condition equals the sum of all the energy forms after the condition.
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.
Vx=(Vxo)t ...Recall that there is no acceleration in the horizontal direction.

48. What is the general equation for motion down a slope and how does it change if the object is going up the slope?
x=Vo + ((1/2)g)sin(angle)t^2
Adding the momentum of all the bodies.
Impulse
Newton

49. What is the horizontal acceleration of projectiles?
x=(1/2)at^2 Remember - the word 'dropped' implies no initial velocity.
Vy=Vyo + gt ...Watch the signs.
Watt
ZERO

50. When is a normal force present - what is its direction?
A1v1=a2v2
x=Vo + ((1/2)g)sin(angle)t^2
When the body rests on a surface.
Same number of protons by a different number of neutrons. e.g. Carbon-12 versus Carbon-14

Test your basic knowledge |

AP Physics

Communication skills, Self help skills, Self improvement skills, Productivity skills, Writing skills, Business skills, Thinking skills & More...

502 Pages | Only $12 | PDF / EPub, Kindle Ready

Link to This Test

Related Subjects