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