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