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