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