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