1) Who came up with the theory of relativity? a) Annalen der Physik b) Albert Einstein c) Isaac Newton d) Galileo Galilei 2) What is the branch of physics that studies the behavior and properties of light, including its interactions with matter and the constructions of instruments that use or detect it a) Thermodynamics b) Nucleonics c) Optics d) Acoustics 3) Relativity is the notion that the laws of physics that are not the same everywhere. a) True b) False 4) An application of relativity: a) clocks on satellites are ahead b) television c) prism d) mirror that reflects 5) The theory of relativity explained previously unexplained scientific observations, led the way for new scientific advances and made many common technologies possible. a) True b) False 6) An explanation of how speed affects mass, time, and space. a) Relativity b) Doppler Effect c) Time Dilation d) Special Relativity 7) What is the formula used for relativity? a) E=m2c b) E=mc2 c) E=lxw 8) Which is NOT an example of Doppler Effect a) police radar b) shift in apparent frequency of the sound of a train horn c) two cars with the same velocity d) pitch of ambulance sirens 9) Only quantities that are invariant under the symmetries of our theories are physically real a) Time Dilation b) Principle of Invariance c) Symmetry d) Transformation 10) It explains why two working clocks will report different times after different accelerations. a) Time Contraction b) Time Dilation c) Length Contraction d) Relativity 11) Relationship of Mass and Energy a) Inverse b) Direct 12) Objects are measured and appeared to be shorter in the direction that they are moving with respect to the observer, this is known as a) Area Shrinking b) Length Shrinking c) Wide Shrinking d) Height Shrinking 13) Which law states that the speed of light is always constant regardless of the motion of the light source or the motion of the observer. a) Special Relativity Theory b) General Relativity Theory c) Relativity Speed theorem d) Relativity Density theorem 14) The special theory of relativity is based on postulates, which states that a) Irrespective of the light source, the speed of light in a vacuum is the same in any other space b) Laws of Physics are invariant c) Both are correct 15) Which is used to measure the time of events by using a clock a) Newtons laws b) Kepler's laws of planetary motion c) The special theory of relativity 16) Speed of light in vacuum is? a) 500,000 kilometers per second b) 30,000 kilometers per second c) 400,000 kilometers per second d) 300,000 kilometers per second 17) Theory of relativity encompasses two theories, namely Special Relativity Theory and a) Non-General Relativity Theory b) General Relativity Theory c) Partial Relativity Theory 18) Which of the following changes as an object approaches the speed of light? a) Visibility b) Charge c) Material d) None of the above 19) An atomic clock is placed in a jet airplane. The clock measures a time interval of 3600 s when the jet moves with speed 400 m/s? How much larger a time interval does an identical clock held by an observer at rest on the ground measure? (2 points) •How much larger a time interval does an identical clock held by an observer at rest on the ground measure? with speed 400 m/s. a) δt = 3.2 ns when v = 10 m/s and ∆t = 3600 s b) δt = 4.2 ns when v = 100 m/s and ∆t = 3600 s c) δt = 3.2 ns when v = 400 m/s and ∆t = 3600 s d) δt = 9.2 ns when v = 400 m/s and ∆t = 3600 s

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