A) thrust. B) an action force. C) escape velocity. D) velocity.
A) 1961. B) 1957. C) 1971. D) 1969.
A) space probe B) space shuttle C) space station D) rover
A) the United States. B) China. C) the Soviet Union. D) Great Britain.
A) establish a permanent colony on the moon. B) land astronauts on the moon. C) put the first American in space. 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) 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 Eagle. B) Explorer 1. C) the moon. D) a rover.
A) the space race B) NASA C) the International Space Station D) the Apollo program
A) velocity B) thrust C) rover D) vacuum
A) Buzz Aldrin B) John Glenn C) Robert Goddard D) Neil Armstrong
A) space shuttles B) satellites C) space stations D) rovers
A) True B) False
A) False B) True
A) False B) True
A) True B) False
A) space station B) space shuttle C) space probe D) rovers
A) rovers B) space shuttle C) space station D) space probe
A) space probe B) space station C) rovers D) space shuttle
A) space shuttle B) rovers C) space station D) space probe
A) rover B) space station C) space shuttle D) space probe
A) space probe B) space station C) space shuttle D) rover
A) space station B) space shuttle C) space probe D) rover
A) space shuttle B) space probe C) rover D) space station
A) False B) True |