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