If a 1 kg mass is completely converted into energy, the amount of energy released would be __________.
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[Ques. 2] If a twin goes on a trip in a high-speed rocket ship, when she returns home she will be younger than her twin sister who did not go on the trip because of the special relativistic effect of __________.
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[Ques. 3] Because of their short lifetimes, very few muons that are produced in the upper atmosphere at high speeds should be observed at the surface of the Earth. Yet we detect large numbers of muons at ground level because of the special relativistic effect of __________.
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[Ques. 4] Since the mass of an object is the same for all observers, it is a relativistically ____________ quantity.
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[Ques. 5] If you do an experiment on Earth, and then do an identical experiment in a jet plane moving uniformly at a high speed, you get identical results from both experiments. This is an example of __________.
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[Ques. 6] The mass of an electron and its antiparticle, a positron, is 0.511 MeV/c2 . In order to produce an electron-positron pair, a gamma ray must have an energy larger than 1.022 MeV because __________.
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[Ques. 7] When it comes near a heavy nucleus, a gamma ray, which is a high energy photon, can disappear, and in its place there will be produced an electron and a positron, which both have mass. According to special relativity, this pair production is an example of __________.
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[Ques. 8] An electron and a positron, which are two massive particles, can annihilate when they come together to produce two photons, which have no mass. According to special relativity, this pair annihilation is an example of __________.
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[Ques. 9] Einstein's famous equation E = mc2 is a statement of __________.
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[Ques. 10] The prediction from special relativity that the length of a moving object will be shortened in the direction of motion is called __________.
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