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 did Thompson discover?
A displacement must occur. ( W=Fd)
The electron
The motion of the molecules in gas.
Concave


2. What are the two forms of the ideal gas law?
Statistically speaking - energy flows from hot to cold.
PV=nRT and PV=kT
KE=Work
E=hf=hc/(wavelength)


3. Define Snell's law.
The volume under water
(n1)sin(theta1) = (n2)sin(theta2)
W=qV
Change in voltage across the resistor or capacitor.


4. Pressure of an open container at the opening.
Atmospheric pressure
According to Coulomb's Law - the new force is 6/4 times the old charge.
W=qV where 'W' is the work - 'q' is the charge and 'V' is the potential difference measured in Volts.
Initial velocity


5. How does impulse relate to force?
Impulse is (force)(time)
A displacement must occur. ( W=Fd)
The charge on each capacitor.
Work done 'BY' the gas.


6. How does thickness effect resistance?
The transfer of thermal energy
The thicker the wire - the lower the resistance.
Work done 'BY' the gas.
Atomic mass number minus atomic number.


7. Buoyancy
Parallel. Because the plates are shared.
Force lifting a body when it is in a fluid.
Joule
No image.


8. S.I. unit of frictional force
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.
Longitudinal Wave: Sound wave - Transverse Wave: Light wave - 'The Wave' in a a crowd at a porting event.
Newton
The release of an energetic photon from an overly excited molecule.


9. What is the derived equation for the electric field in terms of q and r^2 ?

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10. Define Refraction
Dark in the middle and alternating light and dark spots after that.
The bending of light
The charge on each capacitor.
Electric potential is the potential energy associated with the electric force F=qE


11. What is the difference between the variable 'q' and 'Q?'?

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12. What are 2 key differences between electric force and gravitational force?

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13. Work is the area under which curve?
Speed ups
E=kq/r^2 This is the electric field's magnitude at a point in space.
The graph of force vs displacement
Magnitude and direction


14. What is an adiabatic process?
Diverging lenses have a negative focal length.
An adiabatic process is where no thermal energy is transfered between the system and its surroundings.
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.
Dark in the middle and alternating light and dark spots after that.


15. What is the second law of thermodynamics?
Conservation of Energy ... because E=hf
The longer the length of wire - the higher the resistance.
Statistically speaking - energy flows from hot to cold.
The movement of charges is the current and it is measures by the number of charges per second at a point.


16. How is tube length and wavelength related for a tube that is closed on ONE end?
A displacement must occur. ( W=Fd)
Only 1/4 wavelength fits in the tube. L=wavelength/4
KE = (3/2)kT
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.


17. What is the derived equation for the ACCELERATION of gravity in terms of m and 'r' squared?
G(M:earth)/r^2 ...force of gravity = G(M:earth)(M:body)/r^2
Impulse is the change in momentum
Energy and mass are equated by E=mc^2.
Work of a system is equal to 1-Qc/Qh


18. What shape is a diverging lenses?
Conservation of Energy ... because E=hf
E=hf ...E=energy of a single photon (J) - h = Plank's constant - f=frequency (Hz)
The movement of charges is the current and it is measures by the number of charges per second at a point.
Lenses that are thinner in the middle than on the edges.


19. What comprises gamma decay?
The bouncing of light
P=IV
The measure of the average kinetic energy of the molecules.
The release of an energetic photon from an overly excited molecule.


20. What is the direction of the centripetal acceleration?
Sum of the torques equal zero.
The force is perpendicular to the motion to get a circular path of motion. (Think about centripetal force.)
m=(rho)V
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)


21. What is the name given to the distance between the pivot point and applied perpendicular force?
Magnitude and direction
Moment arm
Pgh ..thats ('rho')(gravity's acceleration)(height)
W=qV where 'W' is the work - 'q' is the charge and 'V' is the potential difference measured in Volts.


22. What is the electric field's magnitude inside of a container made from an electrical CONDUCTOR?
Zero.
Work
Longitudinal Wave: Sound wave - Transverse Wave: Light wave - 'The Wave' in a a crowd at a porting event.
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.


23. Condition for no rotation
Sum of the torques equal zero.
Broad bright spot in the middle and alternating dark and light spots to the sides.
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.
Magnitude and direction


24. What is the energy of a photon?

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25. What is force times the perpendicular distance?
The bouncing of light
E=hf=hc/(wavelength)
Torque
The incoming light (electromagnetic wave) has the same frequency as some of the electrons.


26. What is the order of the visible range electromagnetic spectrum?
Every point on a wave front is a secondary source.
ROY-G-BIV: Red - Orange - Yellow - Green - Blue - Indigo - Violet
V=kq/R
'q' is a single particle's charge and 'Q' is the sum of all the charges. Q=q1+q2+q3+q4...


27. Under what conditions is mechanical work negative?
When the object is beyond the focus for a concave mirror.
Open right hand rule
Alpha - Beta - and Gamma
Work is positive when the force and displacement point in the same direction.


28. The speed of a ball when it lands at the same height it was thrown from.
Vx=(Vxo)t ...Recall that there is no acceleration in the horizontal direction.
Initial velocity
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.
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.


29. What are three ways to increase the capacitance of a capacitor?
Impulse
The particle travels in a circle. Radius=momentum/qB
Work done 'BY' the gas.
C=kEA/d: Increase the area of the plates - decrease the distance between the plates -and increase the dielectric constant between the plates.


30. What is the area under the acceleration versus time graph?
The initial velocity - (Vo in the formulas)
Sum of all the energy forms before a condition equals the sum of all the energy forms after the condition.
The CHANGE in velocity.
Adding the momentum of all the bodies.


31. This is used to determine the speed of a fluid when the pipe slopes up or down.

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32. S.I. unit of pressure
Longitudinal Wave: Sound wave - Transverse Wave: Light wave - 'The Wave' in a a crowd at a porting event.
Pascal
Electric potential is the potential energy associated with the electric force F=qE
They fall - vertically - the by the same amount in the same time.


33. What is electromagnetic induction?
Electromagnetic induction is the generation of an Emf by moving a conductor through a magnetic field. emf=change in flux/dt
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)
Pascal
Concave


34. How does a wires composition effect resistance?

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35. What do batteries and generators produce?
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
A potential difference and a flow and energized charges.
The NET work BY a system is the area enclosed in a cycle on a PV diagram.
When the object is beyond the focus for a concave mirror.


36. 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.
KE=Work
The charge on each capacitor.


37. Formula for work as a charged particle travels across two charged plates
Newton
W=qV
Sum of the torques equal zero.
Weber


38. Describe the relationship between Qh - Qc - and W in a heat engine?
Work of a system is equal to 1-Qc/Qh
Gamma
Potential energy stored in gravity (PE = mgh)
Convex


39. What is the difference between atomic number and atomic mass number?
Atomic number is the number of protons. Atomic mass number is the number of nucleons - (protons and neutrons.)
The charge on each capacitor.
wave speed = (wavelength)(frequency)
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.


40. When light travels from MORE dense to LESS dense mediums - how does the refracted ray bend in relation to the normal line?
Force lifting a body when it is in a fluid.
The thicker the wire - the lower the resistance.
the refracted ray bends AWAY from the normal line.
A motor uses energy to spin the coils in a magnetic field. A generator spins the coils to create an potential difference.


41. This is the gauge pressure when under water.
(rho)gh
Newton
(n1)sin(theta1) = (n2)sin(theta2)
Current stays the same for resistors in series.


42. Formula for the electric force felt by a charged particle in an electric field.
F=qE
W=qV
PV=nRT and PV=kT
The graph of force vs displacement


43. What is impulse?
Weight ...w=mg
The bending of light
Impulse is the change in momentum
Newton


44. What does the pattern look like in a Young's Single Slit diffraction pattern?
Zero. Because the displacement is perpendicular to the force (centripetal force.)
Broad bright spot in the middle and alternating dark and light spots to the sides.
Bends waves around small objects and the interference of waves from a coherent sources.
Lost kinetic energy is work. It is calculated from Fd or KE:final - KE:initial


45. In electrostatics - what takes the place of m and g in the formulae?

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46. What is its impact on the first law of thermodynamics of an adiabatic process?
When it is on the same side as the image?
Q=0 because thermal energy is not transfered between the system and its surroundings
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)
Convex


47. What conservation law dictates that the frequency of light cannot change as it travels between mediums?
Conservation of Energy ... because E=hf
The transfer of thermal energy
m^3/s
Work done 'BY' the gas.


48. What is acceleration?
Alpha
Work is the change in kinetic energy. Work transfers energy to and from a body
The light travels through the image.
How quickly you change velocity.


49. What is mass energy equivalence?
A1v1=a2v2
Power ... Power equals the change in energy over time.
x=(1/2)at^2 Remember - the word 'dropped' implies no initial velocity.
Energy and mass are equated by E=mc^2.


50. Which type of lenses have a NEGATIVE focal length?
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.
Diverging
The higher the temperature the higher the resistance. They are proportional to each other.
Diverging lenses have a negative focal length.