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