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