Help Quick pls 1. Which of the following was Einstein’s First Postulate to the Special Theory of Relativity?
a) A beam of light that travels parallel to the aether would take longer than the beam that travels perpendicularly to the aether.
b) Waves had to have some medium to travel through
c) The laws of physics are the same in all frames of reference that are moving uniformly.
d) The speed of light is constant and is independent of the motion of the source or the observer.

2. Which of the following experiments is known as a “failed” experiment, but helped move Einstein’s studies of relativity forward?
a) Thomson’s Cathode Ray Tube Experiment
b) Einstein’s Photoelectric Effect Experiment
c) Michelson-Morley Experiment
d) Rutherford’s Gold-Foil Experiment

3. Which of the following best describes time dilation?
a) the theory that describes the behaviour and characteristics of objects moving at relativistic speeds
b) the effect of the slowing of time as an object moves with high speeds
c) a point in which someone relates the behaviour of an object from one perspective
d) an experiment that proved that Earth did not have an aether wind

4. Two objects at rest are both measured to be 1 meter in length. The first object begins moving at 0.5c and the second object moves at 0.75c. Which of the following is true regarding these two objects?
a) the perceived length of each object is the same as the length of when they are motionless
b) the perceived length of object 1 is longer than the perceived length of object 2
c) the perceived length of object 2 is longer than the perceived length of object 1
d)the perceived length of object 1 is the same as the perceived length of object 2

5. The Twin Paradox deals with the concept of:
a) length contraction
b) time contraction
c) length extension
d) time expansion