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