Final Review Flashcards
Describe Robert Boyle’s experiment that proved what Galileo believed, that “all bodies fall at the same speed in a vacuum.”
Boyle placed a feather and a lump of lead in a glass cylinder and pumped all the air out. When he turned the glass cylinder upside down, bot the feather and lead fell side by side.
lithosphere, hydrosphere, atmosphere
solid, liquid, gas
The New York Times reported that rocket motors would not work in space. “The motor would have nothing to push against.” Explain how Robert Goddard disproved that myth.
While in college, Goddard pumped air out of a long pipe and fired a small rocket motor inside. The engine worked in the vacuum, just like in space.
What did Sir Isaac newton conclude a falling apple and the moon circling the earth have in common?
The earth’s gravity causes both events
large tides caused by the sun and new moon
spring
the name of Isaac Newton’s book
Principia
famous artist who made drawings of Yellowstone Park
Thomas Moran
the name of first artificial satellite launched on October 4, 1957
Sputnik I
How was Ptolemy able to gather so much of the world’s knowledge at that time for his library and museum in Alexandria, Egypt?
He ordered a search of all ships, caravans, and visitors entering Alexandria. When books, maps, or anything interesting was found, they were confiscated, taken to the library where they were copied, and then returned
Explain the three ways the Greeks knew the earth was round.
lunar eclipse- the shadow of the earth as it fell on the moon was circular.
A ship sailing out to sea - the hull disappears first and the mast last (if the earth were flat, the ship would just get smaller).
The North Star was higher in the North than in the South.
Why does a sea breeze blow from the sea to the shore during the day but reverse itself at night?
As the land warms during the day, the air above it also warms, causing rising convection currents above the land. The cool air above the ocean flows in to replace the rising warm air. At night the land cools below the temperature of the sea. The warmer air above the sea rises (convection current), and the cooler air from the land flows in to replace it. This revers is caused by temperature fluctuations on land but very little temperature fluctuation in sea water.
The movement of heat by currents within a substance (liquids & gases)
convection
circumference of the earth
24,875 miles
calculated the circumference (distance around) of the earth
Eratosthenes
“river in the sea”
Gulf Stream
