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