A) escape velocity. B) thrust. C) an action force. D) velocity.
A) 1957. B) 1969. C) 1971. D) 1961.
A) space probe B) space station C) space shuttle D) rover
A) the United States. B) China. C) the Soviet Union. D) Great Britain.
A) prove that the moon is solid. B) land astronauts on the moon. C) put the first American in space. D) establish a permanent colony on the moon.
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) carry out experiments in space. B) take photos and readings of other planets in the solar system. C) show that different countries can work together. D) use solar panels to produce electricity for people on Earth.
A) a rover. B) the Eagle. C) the moon. D) Explorer 1.
A) the International Space Station B) the space race C) the Apollo program D) NASA
A) vacuum B) velocity C) rover D) thrust
A) Robert Goddard B) Buzz Aldrin C) John Glenn D) Neil Armstrong
A) rovers B) space stations C) space shuttles D) satellites
A) True B) False
A) True B) False
A) False B) True
A) False B) True
A) rovers B) space probe C) space shuttle D) space station
A) space shuttle B) space probe C) rovers D) space station
A) space probe B) space station C) rovers D) space shuttle
A) space station B) space shuttle C) space probe D) rovers ![]()
A) rover B) space probe C) space shuttle D) space station ![]()
A) space probe B) space station C) space shuttle D) rover ![]()
A) space station B) space shuttle C) space probe D) rover ![]()
A) space shuttle B) space probe C) space station D) rover
A) False B) True |