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