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