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