Space Exploration by Astronauts

A tether is a rope-like device that attaches an astronaut to a space vehicle during the time spent outside on a spacewalk. Why is a tether necessary for a spacewalk?

• Strong solar winds would blow the astronaut away from the vehicle otherwise.

• Astronauts must remain close to the vehicle to obtain the heat it provides.

• Without a tether, astronauts would float away due to the lack of gravity in space.

• Tethers add just enough weight to the astronaut to keep them in orbit.

Which of the following is the first challenge that had to be overcome by rockets in order for humans to explore space? First, rockets needed ________________

• a place in which the astronauts could sit.

• a way to return to Earth’s surface.

• enough thrust to overcome Earth’s gravity.

• landing gear that worked on another planet.

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The International Space Station is a huge science laboratory that orbits Earth every 92 minutes. Experiments on board the International Space Station can help scientists learn ______________

• why Earth rotates on its axis every day.

• what substances are found in moon dust.

• when the first green plants appeared on Earth.

• how to solve problems of living in space.

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What is an important requirement for a manned spacecraft traveling through space?

• A supply of oxygen for the astronauts.

• The ability to create its own gravity.

• Bright lights to see where it’s going.

• A device for growing food for humans.

With our current technology, travel to the closest star in another solar system is not possible for a human crew due to what limitation?

• Inability to store food and water for long periods of time.

• Lack of data about the many objects found in space.

• Absence of light and energy in the far reaches of space.

• Relatively short human life spans and slow travel speeds.

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a person trained to travel to space and perform a specific job

• astronaut

• catanaut

• specialist

• probe

A vehicle sponsored by sixteen nations that circles the earth while astronauts living on board carry out

experiments

• International Space Station

• Space Shuttle

• Space Probe

• Space Rocket

A US government agency in charge of the space program

• NASA

• JPL

• FDA

• ABSS

a reusable spacecraft that used rockets to launch but could land like a plane when returning to Earth

• satellite

• space shuttle

• space station

• probe

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Who was the first man on the moon?

• Drew Henniger

• Hitler

• Yuri Gagarin

• Neil Armstrong