Planet earth reading quiz 1
Ceres is the largest celestial body between Mars and Jupiter. It has a diameter of about 590 miles and is made up of ice and rock. Prior to being classified as a dwarf planet, Ceres was previously considered a(n) asteroid .
asteroid
Which statement is true about the formation of the Moon?Choose one: A. The Moon and Earth formed together simultaneously. B. The Moon is a comet that was captured by Earth's orbit. C. The Moon formed from debris created when Earth suffered a catastrophic protoplanet collision. D. Early in its formation, fission reactions split the Earth into two bodies, creating the Moon.
C
Why was Ceres re-classified as a dwarf planet? Choose one: A. It was found to have a planetary core. B. It was found to have evidence of volcanic activity. C. Its shape was discovered to be spherical rather than angular. D. It was found to have newer material, including flows, pits, and cracks.
C
The Doppler effect Choose one: A. occurs when the pitch of a sound gets lower if the source is approaching. B. is the basic explanation for the blue shift of light in our Universe. C. occurs when the frequency of sound waves received is lower if the wave source is moving toward you than if it's moving away. D. can be applied to sound waves.
D
Order the events chronologically that occurred in the formation of our Solar System. (4 items) (Drag and drop into the appropriate area) No more items First 1) An accretionary disk formed. 2) A protosun formed. 3)Rings formed in the protoplanetary disk. 4)Planetesimals collected to form protoplanets.
yes
Place in chronological order the events that led to the formation of the Earth. (4 items) (Drag and drop into the appropriate area) No more items First 1) The Earth cleared its orbit of all other matter, making it a true planet. 2)The Moon formed. 3)Volcanic activity occurred, releasing gases. 4)An atmosphere formed.
yes
The heavier elements on the Earth (those with atomic numbers greater than 5) Choose one: A. are formed by stellar nucleosynthesis during the life cycles of existing stars. B. were formed immediately after the Big Bang. C. are constantly being created by fusion in our Sun and blown here by the solar wind. D. were in existence at the moment of the Big Bang.
A
Physicists have shown that the 92 naturally occurring elements in the universe form during the life cycle of stars. During what stellar process are the very large elements (those heavier than iron) created?Choose one: A. atomic fusion taking place in a star's core B. a supernova explosion C. magnetic fields created by pulsars D. gravitational collapse of a protostar
B
Stars Choose one: A. create elements by splitting the nuclei of small atoms into the nuclei of larger atoms. B. can explode cataclysmically when they die and contribute their matter to future star generations. C. begin as protoplanets, which fire up when they collapse and become denser and hotter. D. have unlimited amounts of fuel and therefore exist indefinitely.
B
The heliocentric model Choose one: A. was widely accepted during the Middle Ages (about 476-1400 C.E.). B. was supported by Johannes Kepler's observation that planets follow an elliptical orbit. C. states that the Earth is the center of the Universe, and the Moon and planets revolve around it. D. was developed by Ptolemy and supported by his mathematical equations.
B
Scientific cosmology Choose one: A. states that the two basic entities of the Universe are heat and light. B. proves the Big Bang theory. C. pertains to legends and verbal history about the beginnings of the Universe. D. investigates the overall structure and history of the Universe.
D.
