A) escape velocity. B) an action force. C) velocity. D) thrust.
A) 1971. B) 1969. C) 1957. D) 1961.
A) space station B) space probe C) space shuttle D) rover
A) Great Britain. B) the United States. C) China. D) the Soviet Union.
A) put the first American in space. B) land astronauts on the moon. C) establish a permanent colony on the moon. D) prove that the moon is solid.
A) the total weight of the rocket is reduced as the rocket rises. B) it can be reused after returning to Earth. C) it requires less fuel to overcome gravity at the time of launch. D) it can carry humans into space.
A) take photos and readings of other planets in the solar system. B) carry out experiments in space. C) show that different countries can work together. D) use solar panels to produce electricity for people on Earth.
A) the moon. B) Explorer 1. C) a rover. D) the Eagle.
A) NASA B) the International Space Station C) the Apollo program D) the space race
A) velocity B) rover C) thrust D) vacuum
A) Robert Goddard B) John Glenn C) Neil Armstrong D) Buzz Aldrin
A) space stations B) space shuttles C) rovers D) satellites
A) True B) False
A) True B) False
A) True B) False
A) True B) False
A) space station B) space probe C) rovers D) space shuttle
A) rovers B) space probe C) space shuttle D) space station
A) space shuttle B) space probe C) rovers D) space station
A) space station B) space shuttle C) rovers D) space probe
A) rover B) space shuttle C) space probe D) space station
A) space station B) space shuttle C) space probe D) rover
A) space probe B) rover C) space shuttle D) space station
A) space probe B) space shuttle C) rover D) space station
A) True B) False |