A) an action force. B) velocity. C) escape velocity. D) thrust.
A) 1969. B) 1971. C) 1961. D) 1957.
A) space shuttle B) rover C) space probe D) space station
A) the United States. B) Great Britain. C) China. D) the Soviet Union.
A) put the first American in space. B) land astronauts on the moon. C) establish a permanent colony on the moon. D) prove that the moon is solid.
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) 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) a rover. B) the Eagle. C) Explorer 1. D) the moon.
A) the International Space Station B) the space race C) NASA D) the Apollo program
A) velocity B) thrust C) rover D) vacuum
A) John Glenn B) Robert Goddard C) Buzz Aldrin D) Neil Armstrong
A) space stations B) rovers C) satellites D) space shuttles
A) True B) False
A) False B) True
A) True B) False
A) True B) False
A) space shuttle B) space station C) rovers D) space probe
A) space shuttle B) rovers C) space probe D) space station
A) space station B) space shuttle C) rovers D) space probe
A) space shuttle B) space station C) space probe D) rovers
A) space station B) space shuttle C) space probe D) rover
A) space probe B) space shuttle C) space station D) rover
A) space station B) space shuttle C) space probe D) rover
A) space shuttle B) rover C) space probe D) space station
A) False B) True |