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