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