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