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