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