Use the dictionary, the acronym finder, and the word origins dictionary (links above) as needed. A new quiz is available each Monday through Thursday. This is the quiz for March 25.
Light has weight. Space has curves. And coiled within a pound of matter, any matter, is the explosive power of 14 million tons of TNT. We know all this because of Albert Einstein.
In 1905 the 26-year-old Einstein sent three papers to a physics journal to be published "if there is room." All three were published in the same issue, and they changed the world. One was an update of Max Planck's quantum theory of radiation. Light, declared Einstein, travels as both a wave and as particles called quanta. Another paper concerned Brownian motion, an until-then unexplained phenomenon involving bouncing molecules. The third, wrote Einstein in a letter to a friend, "modifies the theory of space and time."
In 1916, he reasoned that light had mass and that space and time were actually space-time.
1. This article is mostly about
A. Einstein's contributions to knowledge.
B. the early life of Einstein.
C. the beginnings of the atom bomb.
D. physics.
2. 14 million tons of TNT are the explosive power of
A. a single atom.
B. a pound of any matter.
C. a pound of uranium.
D. a pound of TNT.
3. 1905 was the year that
A. Einstein began to study quanta.
B. Einstein learned of the space-time continuum.
C. Einstein sent three papers to be published.
D. Einstein changed the world.
Use the dictionary, the acronym finder, and the word origins dictionary (links above) as needed. A new quiz is available each Monday through Thursday. This is the quiz for March 25.