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