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