Question
1.During a photoelectric effect experiment, light possessing 2.98 eV of energy is incident on the photosensitive material. Electrons are emitted with an energy of 0.71
1.During a photoelectric effect experiment, light possessing 2.98 eV of energy is incident on the photosensitive material. Electrons are emitted with an energy of 0.71 eV of energy. What is the work function of the material?
0.71 eV | |
2.98 eV | |
2.27 eV | |
3.69 eV |
2.
Explain the two experiments that Michael Faraday used to show that it is possible to generate a current using a magnet.
3.
What is the de Broglie wavelength of a 2.89 x 10-28 kg particle moving at 3.00 x 108 m/s? (h = 6.626 x 10-34 Js)
7.99 x 10-15 m | |
4.45 x 10-15 m | |
9.12 x 10-15 m | |
7.65 x 10-15 m |
4.
Discuss how the alignment of atoms makes a magnet weak or strong. Use the term magnetic domain in your discussion.
6.
An electron moving west through a magnetic field pointing toward the east experiences a force that is _____.
north | |
zero | |
into the page | |
south |
7.
A current is induced as it moves through a magnetic field. What would happen to the current if it were to be moved faster through the field?
there is not enough information to say | |
the induced current will increase | |
the induced current will stay constant | |
the induced current will decrease |
8.
A particle is spiraling through space. Which of the following must be true?
the charged particle is moving outside of a magnetic field | |
the charged particle is moving perpendicularly to a magnetic field | |
the charged particle is moving at an angle to the magnetic field | |
the charged particle is moving parallel to the magnetic field |
10.
Which of the following would step-down the voltage that comes in to a transformer? Select all that apply.
the primary coil has more turns than the secondary coil | |
the primary coil and the second coil have the same number of turns | |
the primary coil has less turns that the primary coil |
11.
Which of the following statements are true? Check all that apply.
When light passes through a double slit, it acts like a wave. | |
When light passes through a double slit, it acts like particles. | |
When particles pass through a double slit, it acts like a particle. | |
When particles pass through a double slit, it acts like waves. |
12.
A current-carrying wire carries a current of 2.53 A. What is the magnitude of the magnetic field at point P, 0.0034 meters away from the wire?
2.69 x 10-10 T | |
2.69 x 10-9 T | |
1.49 x 10-4 T | |
1.49 x 10-5 T |
13.
Which scientist was awarded the Nobel Prize for his work with quantized energy?
Oppenheimer | |
Planck | |
Bohr | |
Heisenberg |
14.
Explain the right-hand rule for a current-carrying conductor.
15.
A magnetic field will be induced in an area where the electric field is changing with respect to time. This is:
Faraday's Law | |
Maxwell's Corollary | |
Ohm's Law | |
Coulomb's Law |
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