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