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