Process of Science: Why do we test theories about the Big Bang using particle accelerators instead of just using bigger and bigger telescopes to look further back in time?
What will be an ideal response?
The Universe was so small and hot during the early phases of the Big Bang that there was spontaneous particle creation from energy and annihilation. We can recreate the conditions of particle creation and annihilation at high energies using particle accelerators and thereby test theories of the Big Bang. Furthermore, we cannot actually see these early stages directly because the Universe is so dense that it is opaque.
22.4 Mastering Astronomy Reading Quiz
You might also like to view...
A cello plays a note of frequency 220 Hz using a length L of one of its strings. What length of the same string must be used in order to play a fundamental frequency of 256 Hz? Assume in each case that the note played is the fundamental frequency of the string at the given length and that the tension T and mass per unit length are not changed when selecting a different length of the same string.
A. 0.86L B. 1.72L C. 0.58L D. 1.16L E. 0.43L F. 2.32L
Approximately how long between the evolution of single versus multicellular organisms?
A) 4.5 billion years B) two billion years C) one billion years D) 600 million years E) 63 million years
In an AC series circuit, the current in a pure resistor differs in phase with the applied voltage by what angle?
a. zero b. 45° c. 90° d. 180°
A rifle sight is set so that you will hit a target at 100m. If, instead, you wish to hit a target closer than 100m, should you aim high or low?
A. You should aim high, since the bullet will drop due to the effect of gravity B. You should aim directly at the target, if the rifle sight is set, it will aim true no matter the distance to the target C. You should aim low, since the bullet will not drop as much as expected due to the effect of gravity