A) velocity. B) escape velocity. C) thrust. D) an action force.
A) 1969. B) 1957. C) 1961. D) 1971.
A) space probe B) rover C) space shuttle D) space station
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) establish a permanent colony on the moon. D) prove that the moon is solid.
A) it can carry humans into space. B) it can be reused after returning to Earth. 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) the moon. C) Explorer 1. D) the Eagle.
A) the International Space Station B) NASA C) the space race D) the Apollo program
A) rover B) vacuum C) thrust D) velocity
A) Robert Goddard B) John Glenn C) Buzz Aldrin D) Neil Armstrong
A) rovers B) satellites C) space stations D) space shuttles
A) True B) False
A) True B) False
A) False B) True
A) False B) True
A) space shuttle B) space probe C) rovers D) space station
A) space probe B) space shuttle C) rovers D) space station
A) space probe B) space station C) space shuttle D) rovers
A) space probe B) rovers C) space station D) space shuttle
A) rover B) space shuttle C) space probe D) space station
A) space shuttle B) space probe C) rover D) space station
A) space probe B) space shuttle C) space station D) rover
A) rover B) space station C) space probe D) space shuttle
A) False B) True |