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