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