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