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Physics.quiz
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1990-12-16
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172 lines
Physics quiz
1. The nucleus of a hydrogen atom contains a single ________ ?
proton
2. An electron has a _________ charge.
negative
3. A proton has a _________ charge.
positive
4. Two particles which appear when a free neutron decays are a
proton and an _________ .
electron
5. Neutrinos are almost without _________ .
mass
6. Force = _________ x acceleration.
mass
7. Protons and _________ are packed closely together in an
atomic nucleus.
neutrons
8. The fastest possible speed is the speed of _________ in vacuum.
light
9. Parallel rays of light are brought to a _________ by a double
convex lens.
focus
10. A magnetic field will bend the path of particles which have
an electric _________ .
charge
11. An electron will be attracted by a _________ .
proton
12. A changing electric field will create a changing _________ field.
magnetic
13. A changing magnetic field will create a changing _________ field.
electric
14. Laser light causes speckle because the light is _________ .
coherent
15. Waves will destructively interfere if they are out of _________ .
phase
16. LASER is an acronym for light amplification by stimulated
emission of _________ .
radiation
17. An atom with an unbalanced electric charge is called an _________ .
ion
18. The half-life of _________-238 is more than a million years.
uranium
19. The half-life of _________-214 is less than a millisecond.
polonium
20. The antimatter equivalent of an electron is the _________ .
positron
21. A quanta of light is called a _________ .
photon
22. A quanta of vibrational energy in a solid in called a _________ .
phonon
23. Two photons result from the annihilation of an electron and a
_________ .
positron
24. The most abundunt element in the universe is _________ .
hydrogen
25. In which state of matter is most of the mass in the universe?
plasma
26. The unit in which nuclear magnetic moment is measured is
the _________ .
magneton
27. Torque on a spinning top will cause it to _________ .
precess
28. For every action there is an equal and opposite _________ .
reaction
29. Momentum = _________ x velocity.
mass
30. The angle of incidence is equal to the angle of _________ .
reflection
31. Kinetic Energy = 1/2 * mass * (__________ squared).
speed
32. Both linear and angular ___________ are conserved.
momentum
33. The nucleus of _________ contains one proton and one neutron.
deuterium
34. The nucleus of _________ contains one proton and two neutrons.
tritium
35. Radiohalos are formed when a microscopic particle of
radioactive material decays in a _________.
crystal
36. Disorder, or _________, is always increasing.
entropy
37. _________ occurs when a light ray passes from one medium to
another with a different index of refraction.
refraction
38. While a pendulum is swinging, there is a continuous transfer
between potential and ________ energy.
kinetic
39. Heat sensitive detectors respond to ________ radiation.
infrared
40. The wavelength region just shorter than the visible is the _______.
ultraviolet