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