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