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