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