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