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. S.I. unit of gravitational force
The incoming light (electromagnetic wave) has the same frequency as some of the electrons.
The volume under water
Q=0 because thermal energy is not transfered between the system and its surroundings
Newton


2. What is the difference between emf and voltage?
The bending of light
Sum of the torques equal zero.
Electric potential is the potential energy associated with the electric force F=qE
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.


3. How can total momentum be calculated?
Electromagnetic wave exits the electrons to a higher orbital. When the electron relaxes - a wavelength of light is given off.
Adding the momentum of all the bodies.
(1) Bounced off the vertex. (2) Parallel the through the focus. (3) Through the focus and parallel.
Newton


4. 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
C=kEA/d: Increase the area of the plates - decrease the distance between the plates -and increase the dielectric constant between the plates.
In front of the mirror - in the light.


5. What is half life?
It is the time for 1/2 a substance to decay by radioactive processes.
Electric potential is the potential energy associated with the electric force F=qE
A potential difference and a flow and energized charges.
A motor uses energy to spin the coils in a magnetic field. A generator spins the coils to create an potential difference.


6. 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


7. What cause an electromagnetic wave - and what makes the wave propagate indefinitely even in a vacuum?
Speed ups
Light must travel from more to less dense so the refracted ray can bend away from the normal.
Gamma
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.


8. What does the term electric potential energy mean?
Pascal
G(M:earth)/r^2 ...force of gravity = G(M:earth)(M:body)/r^2
2(pi)R/T ...Circumference/Period
Electric potential is the potential energy associated with the electric force F=qE


9. What is the electric field's magnitude inside of a container made from an electrical INSULATOR?
Something other than zero.
frequency (Think of the color as not changing.)
the refracted ray bends AWAY from the normal line.
Heat - (the 'Q' variable) - is NEGATIVE when thermal energy is being REMOVED from a system.


10. The speed of a ball when it lands at the same height it was thrown from.
frequency (Think of the color as not changing.)
Initial velocity
Impulse is the change in momentum
DU = Q+W ...dU:of the environment = Q:from the environment + W:by the environment


11. What is the energy equation if you see a height difference between two points in the problem?
Newton
ZERO
Potential energy stored in gravity (PE = mgh)
The volume under water


12. Average kinetic energy of an ideal gas's SINGLE molecule.
The electron
Electric potential is the potential energy associated with the electric force F=qE
KE = (3/2)kT
velocity


13. What is an isotope?
V=E - IR V=terminal voltage (Volts) - E = emf: electromotiveforce (Volts) - IR = Internal drop in energy per charge (Volts)
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.
(Cross-sectional Area)(Velocity)
Same number of protons by a different number of neutrons. e.g. Carbon-12 versus Carbon-14


14. What is the difference between reflection - refraction - and diffraction?
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.
Weber
Sum of the torques equal zero.
Impulse


15. What is the derived equation for the ACCELERATION of gravity in terms of m and 'r' squared?
(1) The image is larger than the object: ho>hi. (2) image is upright.
Alpha
G(M:earth)/r^2 ...force of gravity = G(M:earth)(M:body)/r^2
Concave mirrors are converging mirrors.


16. What quantity ADDS for resistors in series?
PV=nRT and PV=kT
The bending of light
Displacement
Resistance: R=R1+R2+R3+...


17. What is acceleration?
How quickly you change velocity.
The release of a particle or photon from an UNSTABLE nucleus.
Initial velocity
Sum of the torques equal zero.


18. What is the relationship between voltage - current and resistance?

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


19. What is the strong force?
g=zero so h=(Vyo)t
Ohm's Law: V=IR
THe force that holds the nucleus together.
Broad bright spot in the middle and alternating dark and light spots to the sides.


20. What shape is a converging mirrors?
Work is positive when the force and displacement point in the same direction.
Concave mirrors are converging mirrors.
The centripetal force is the net force. It's magnitude is calculated from F=ma where 'a' is the centripetal force.
The motion of the molecules in gas.


21. What does light emission involve?
Zero. Because the displacement is perpendicular to the force (centripetal force.)
When a body is moving at a constant velocity or not moving at all.
Electromagnetic wave exits the electrons to a higher orbital. When the electron relaxes - a wavelength of light is given off.
Diverging


22. What is the work done on a charged particle by the magnetic field? Why?
Vertical direction
ZERO. Because the force is perpendicular to the displacement . (Open right hand rule.)
Longitudinal Wave: Sound wave - Transverse Wave: Light wave - 'The Wave' in a a crowd at a porting event.
Convex


23. What is the relationship between speed - frequency - and wavelength?
Ohm's Law: V=IR
Light must travel from more to less dense so the refracted ray can bend away from the normal.
wave speed = (wavelength)(frequency)
V=E - IR V=terminal voltage (Volts) - E = emf: electromotiveforce (Volts) - IR = Internal drop in energy per charge (Volts)


24. What is force times the parallel diplacement?
Electromagnetic induction is the generation of an Emf by moving a conductor through a magnetic field. emf=change in flux/dt
Work by a system is negative when the gas contracts. (The volume decreases.)
Work
E=kq/R^2


25. How is sum of force (net force) depicted in a free body diagram?
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.
Electric potential is the potential energy associated with the electric force F=qE
Sum of all the energy forms before a condition equals the sum of all the energy forms after the condition.
Electromagnetic wave exits the electrons to a higher orbital. When the electron relaxes - a wavelength of light is given off.


26. What is the photoelectric effect?
V=Vo + at ...The word 'dropped' means no initial velocity.
It is the release of photoelectrons released by photons with an energy (E=hf) above the work function.
Work by a system is negative when the gas contracts. (The volume decreases.)
wave speed = (wavelength)(frequency)


27. What do you do with any vector that is not on either the x or y axis?
Break it up into x and y components using trig - add up the components.
(1) The image is larger than the object: ho>hi. (2) image is upright.
A motor uses energy to spin the coils in a magnetic field. A generator spins the coils to create an potential difference.
N/C


28. Condition for no rotation
E=kq/r^2 This is the electric field's magnitude at a point in space.
Heat - (the 'Q' variable) - is POSITIVE when thermal energy is being ADDED to a system.
Sum of the torques equal zero.
Statistically speaking - energy flows from hot to cold.


29. How is the centripetal force represented in a free body diagram?
Pendulums depend on the length of the arm and the pull of gravity. springs depend on mass and the spring constant.
It is the net force pointing towards the center.
Newton
Torque


30. What is the relationship that describes the rate that work is done - or that energy is used?
Power ... Power equals the change in energy over time.
m^3/s
Work is the change in kinetic energy. Work transfers energy to and from a body
No image.


31. A ball rolls inside a salad bowl. The ball is released along the top edge and rolls down before climbing to the same height on the opposite side of the bowl. What is the direction of the acceleration of the ball when it at the top edge of the bowl?
Every point on a wave front is a secondary source.
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.
E=kq/r^2 This is the electric field's magnitude at a point in space.
Convex


32. In uniform circular motion - how is tangential velocity calculated?
2(pi)R/T ...Circumference/Period
The release of an energetic photon from an overly excited molecule.
The refracted light ray is bent 90°. (Parallel to the interface surface.)
Atmospheric pressure


33. S.I. unit of frictional force
The electron
W = KE:final - KE:initial
Lenses that are thinner in the middle than on the edges.
Newton


34. What two things must be true for a positive magnification?
Resistance: R=R1+R2+R3+...
The release of an energetic photon from an overly excited molecule.
(1) The image is larger than the object: ho>hi. (2) image is upright.
Convex


35. What is implied when an object is not accelerating in the y direction?
g=zero so h=(Vyo)t
The electric field forces charges to move.
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.
Weber


36. What is meant by the terms system and environment?
The bending of light
Pgh ..thats ('rho')(gravity's acceleration)(height)
system is the gas being studied. Environment is the surroundings outside the gas.
Impulse is the change in momentum


37. Under what conditions is mechanical work positive?
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.
(1) The image is larger than the object: ho>hi. (2) image is upright.
When it is on the 'dark' side of the mirror. Opposite the light.
Work is positive when the force and displacement point in the same direction.


38. What is the formula relating emf and voltage?
system is the gas being studied. Environment is the surroundings outside the gas.
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.
V=E - IR V=terminal voltage (Volts) - E = emf: electromotiveforce (Volts) - IR = Internal drop in energy per charge (Volts)
Gamma


39. In a pendulum or spring - what are the displacement - velocity - PES - and K at maximum displacement?
E=hf=hc/(wavelength)
Joule
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 potential difference and a flow and energized charges.


40. What does upward slope on a displacement versus time graph imply about the velocity.
The velocity is positive
Diverging lenses have a negative focal length.
V - a Joule/Coulomb
The release of a particle or photon from an UNSTABLE nucleus.


41. S.I. unit of magnetism
But placing more obstacles in the path of the charge's flow.
C=kEA/d: Increase the area of the plates - decrease the distance between the plates -and increase the dielectric constant between the plates.
Tesla
Alpha - Beta - and Gamma


42. Describe the relationship between Qh - Qc - and W in a heat engine?
'q' is a single particle's charge and 'Q' is the sum of all the charges. Q=q1+q2+q3+q4...
Work of a system is equal to 1-Qc/Qh
Lenses that are fatter in the middle than on the edges.
Transverse waves: The displacement is perpendicular to the wave's motion. Longitudinal waves: The displacement is in the direction of the wave's motion.


43. S.I. unit of flux
When it is on the 'dark' side of the mirror. Opposite the light.
frequency (Think of the color as not changing.)
Radio - Infrared - Visible - UltraViolet - X-Rays - Gamma Rays.
Weber


44. What is the energy of a photon?

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


45. Give an example of a transverse and a longitudinal wave.

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


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

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


47. How much work is the work done on an object moving in a circle? Why?
ZERO. Because the force is perpendicular to the displacement . (Open right hand rule.)
Impulse
Dark in the middle and alternating light and dark spots after that.
Zero. Because the displacement is perpendicular to the force (centripetal force.)


48. What is the energy equation if you see a particle accelerated perpendicular to two charged plates - or the problem states that the particle is accelerated through a potential difference?

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


49. What makes an image 'real?'
The light travels through the image.
W=qV where 'W' is the work - 'q' is the charge and 'V' is the potential difference measured in Volts.
E=V/d
Provided experimental proof of the wave property of light.


50. What is the difference between a motor and a generator?
The CHANGE in velocity.
A motor uses energy to spin the coils in a magnetic field. A generator spins the coils to create an potential difference.
Pascal
Speed ups