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