A) velocity. B) an action force. C) escape velocity. D) thrust.
A) 1957. B) 1969. C) 1971. D) 1961.
A) space shuttle B) rover C) space probe D) space station
A) Great Britain. B) China. C) the United States. D) the Soviet Union.
A) put the first American in space. B) land astronauts on the moon. C) establish a permanent colony on the moon. D) prove that the moon is solid.
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) the Eagle. B) a rover. C) Explorer 1. D) the moon.
A) NASA B) the Apollo program C) the space race D) the International Space Station
A) rover B) vacuum C) velocity D) thrust
A) Buzz Aldrin B) Robert Goddard C) John Glenn D) Neil Armstrong
A) satellites B) rovers C) space shuttles D) space stations
A) True B) False
A) False B) True
A) True B) False
A) False B) True
A) space shuttle B) space probe C) rovers D) space station
A) space probe B) space station C) rovers D) space shuttle
A) space probe B) space shuttle C) space station D) rovers
A) space shuttle B) rovers C) space probe D) space station
A) space shuttle B) space station C) rover D) space probe
A) space probe B) rover C) space station D) space shuttle
A) space probe B) space shuttle C) space station D) rover
A) space shuttle B) space probe C) space station D) rover
A) False B) True |