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 general equation for motion down a slope and how does it change if the object is going up the slope?
Heat - (the 'Q' variable) - is NEGATIVE when thermal energy is being REMOVED from a system.
ZERO. Because the force is perpendicular to the displacement . (Open right hand rule.)
x=Vo + ((1/2)g)sin(angle)t^2
Concave mirrors are converging mirrors.


2. How does thickness effect resistance?
system is the gas being studied. Environment is the surroundings outside the gas.
the refracted ray bends TOWARDS the normal line.
The graph of force vs displacement
The thicker the wire - the lower the resistance.


3. How much work is the work done on an object moving in a circle? Why?
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.
Zero. Because the displacement is perpendicular to the force (centripetal force.)
Parallel. Because the plates are shared.
Velocity has a direction and speed does not have direction.


4. Formula for work as a charged particle travels across two charged plates
Potential energy stored in gravity (PE = mgh)
W=qV
It is the net force pointing towards the center.
Change in voltage across the resistor or capacitor.


5. 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)
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.
According to Coulomb's Law - the new force is 6/4 times the old charge.
Impulse is the change in momentum


6. How is the magnitude of the force on a current carrying wire calculated?

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7. How must the mediums light is traveling through be arranged so that the condition for the critical angle can exist?
A change in the gas' temperature.
W = KE:final - KE:initial
Joule
Light must travel from more to less dense so the refracted ray can bend away from the normal.


8. How is a force's direction oriented compared to a bodies direction of motion to get a circular (curved) path of motion?
When a body is moving at a constant velocity or not moving at all.
Converging lenses have a positive focal length.
Open right hand rule
The force is perpendicular to the motion to get a circular path of motion. (Think about centripetal force.)


9. What is the law of reflection?
They fall - vertically - the by the same amount in the same time.
The force is perpendicular to the motion to get a circular path of motion. (Think about centripetal force.)
Concave
The Law of reflection states that the incident angle of a wave is equal to the reflected angle.


10. S.I. unit of momentum
the refracted ray bends TOWARDS the normal line.
THe force that holds the nucleus together.
When a body is moving at a constant velocity or not moving at all.
kg•m/s


11. Which type of lenses have a POSITIVE focal length?
Pendulums depend on the length of the arm and the pull of gravity. springs depend on mass and the spring constant.
Converging lenses have a positive focal length.
The measure of the average kinetic energy of the molecules.
The electric field forces charges to move.


12. Under what conditions is mechanical work negative?
Convex
But placing more obstacles in the path of the charge's flow.
Work is positive when the force and displacement point in the same direction.
The motion of the molecules in gas.


13. Under what conditions does entropy increase?
The velocity is positive
Entropy always increases.
The energy required to remove an electron or nucleon from a molecule.
Alpha


14. S.I. unit of flux
The PVT conditions change for a gas without changing the temperature.
E=kq/r^2 This is the electric field's magnitude at a point in space.
Weber
Atmospheric pressure


15. Electric force felt by a charge due to another charge.
Energy and mass are equated by E=mc^2.
F=kq1q2/R^2
E=V/d
Pgh ..thats ('rho')(gravity's acceleration)(height)


16. What is the 1st law of thermodynamics as applied to gases?
But placing more obstacles in the path of the charge's flow.
Newton
DU = Q+W ...dU:of the environment = Q:from the environment + W:by the environment
Entropy always increases.


17. What happens at the critical angle?
2(pi)R/T ...Circumference/Period
Speed ups
The refracted light ray is bent 90°. (Parallel to the interface surface.)
KE = (3/2)kT


18. What does light absorption involve?
In front of the mirror - in the light.
The incoming light (electromagnetic wave) has the same frequency as some of the electrons.
Alpha
Lenses that are thinner in the middle than on the edges.


19. How can you tell when an engine is a Carnot Engine?

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20. What is the order of the visible range electromagnetic spectrum?
ROY-G-BIV: Red - Orange - Yellow - Green - Blue - Indigo - Violet
When a body's speed is changing.
A1v1=a2v2
W = KE:final - KE:initial


21. How can total momentum be calculated?
Adding the momentum of all the bodies.
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
KE=Work


22. Formula for the electric field between a pari of charged plates.
E=hf=hc/(wavelength)
Heat - (the 'Q' variable) - is POSITIVE when thermal energy is being ADDED to a system.
E=V/d
The release of an energetic photon from an overly excited molecule.


23. What do you do with any vector that is not on either the x or y axis?
When a body is moving at a constant velocity or not moving at all.
The centripetal acceleration points along the radius towards the center of the circle. (Just like the centripetal force.)
The charge on each capacitor.
Break it up into x and y components using trig - add up the components.


24. How length effect resistance?
Lenses that are fatter in the middle than on the edges.
The longer the length of wire - the higher the resistance.
KE=Work
m=(rho)V


25. What kind of mirror has a positive focus?
Alpha
Concave
It is the release of photoelectrons released by photons with an energy (E=hf) above the work function.
Statistically speaking - energy flows from hot to cold.


26. What do batteries and generators produce?
C=kEA/d: Increase the area of the plates - decrease the distance between the plates -and increase the dielectric constant between the plates.
The PVT conditions change for a gas without changing the temperature.
A potential difference and a flow and energized charges.
KE = (3/2)kT


27. What does the pattern look like in a Young's Double Slit diffraction pattern?
Dark in the middle and alternating light and dark spots after that.
Impulse is the change in momentum
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
Potential difference is the change in energy of a charged particle divided by its charge.


28. Work is the area under which curve?
The graph of force vs displacement
Diverging lenses have a negative focal length.
Concave mirrors are converging mirrors.
Watt


29. What is internal energy?
A1v1=a2v2
Vx=(Vxo)t ...Recall that there is no acceleration in the horizontal direction.
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.
The motion of the molecules in gas.


30. What is the y intercept of the velocity time graph?
The initial velocity - (Vo in the formulas)
Sum of the torques equal zero.
Electromagnetic induction is the generation of an Emf by moving a conductor through a magnetic field. emf=change in flux/dt
dU = zero. The change in temperature of the gas is zero.


31. What is an adiabatic process?
Newton
Broad bright spot in the middle and alternating dark and light spots to the sides.
An adiabatic process is where no thermal energy is transfered between the system and its surroundings.
Sum of all the energy forms before a condition equals the sum of all the energy forms after the condition.


32. What is the difference between elastic and inelastic collisions? State the relevant equations for each.

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33. State the significance of Young's Experiment.
KE=(3/2)kT where k is Boltzman's constant
Provided experimental proof of the wave property of light.
ZERO
Joule


34. In uniform circular motion - how is tangential velocity calculated?
The NET work BY a system is the area enclosed in a cycle on a PV diagram.
Work is positive when the force and displacement point in the same direction.
The electron
2(pi)R/T ...Circumference/Period


35. What is the name given to the distance between the pivot point and applied perpendicular force?
Moment arm
PV=nRT and PV=kT
E=hf=hc/(wavelength)
When it is on the same side as the image?


36. Which type of radiation has the lowest energy?
The measure of the average kinetic energy of the molecules.
Pendulums depend on the length of the arm and the pull of gravity. springs depend on mass and the spring constant.
Alpha
The body is moving at a constant velocity


37. What is the impact on the first law of thermodynamics for an isothermal process?
dU = zero. The change in temperature of the gas is zero.
Alpha - Beta - and Gamma
The bending of light
ZERO


38. When is the image negative for mirrors?

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39. What conservation law dictates that the frequency of light cannot change as it travels between mediums?
They fall - vertically - the by the same amount in the same time.
Conservation of Energy ... because E=hf
Light must travel from more to less dense so the refracted ray can bend away from the normal.
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 is electromagnetic induction?
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.
Electromagnetic induction is the generation of an Emf by moving a conductor through a magnetic field. emf=change in flux/dt
The volume under water
Alpha - Beta - and Gamma


41. Define Refraction
the refracted ray bends TOWARDS the normal line.
It is the net force pointing towards the center.
The bending of light
The acceleration is towards the center. It is supplied by the normal force and points towards the center.


42. What is the relationship between energy - frequency - and wavelength in any wave?
Work done 'BY' the gas.
E=hf=hc/(wavelength)
Force lifting a body when it is in a fluid.
The thicker the wire - the lower the resistance.


43. Define reflection
The energy required to remove an electron or nucleon from a molecule.
The bouncing of light
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
Convex


44. How is tube length and wavelength related for a tube that is opened on both ends?
Broad bright spot in the middle and alternating dark and light spots to the sides.
Atomic mass number minus atomic number.
F=kq1q2/R^2
Only 1/2 a wavelength fits in the tube. L=wavelength/2


45. Pressure of an open container at the opening.
Newton
the refracted ray bends AWAY from the normal line.
Atmospheric pressure
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.


46. What is Huygen's Principle?
Conservation of Energy ... because E=hf
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.
Every point on a wave front is a secondary source.
Vertical direction


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

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48. How does a wires composition effect resistance?

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49. What is the electric field's magnitude inside of a container made from an electrical CONDUCTOR?
The NET work BY a system is the area enclosed in a cycle on a PV diagram.
Zero.
Open right hand rule
Resistance: R=R1+R2+R3+...


50. Energy of a SINGLE photon
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.
Entropy always increases.
E=hf
E=hf ...E=energy of a single photon (J) - h = Plank's constant - f=frequency (Hz)