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