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