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