KIDS QUIZ
SPACE EXPLORATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Strong solar winds would blow the astronaut away from the vehicle otherwise.
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Astronauts must remain close to the vehicle to obtain the heat it provides.
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Without a tether, astronauts would float away due to the lack of gravity in space.
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Tethers add just enough weight to the astronaut to keep them in orbit.
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Detailed explanation-1: -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? Strong solar winds would blow the astronaut away from the vehicle otherwise.
Detailed explanation-2: -We have Newton’s first law of physics to thank for this. It says that a body stays in its present state of motion until acted on by an external force. So, in the vacuum of space, an astronaut without a line tying him to his ship will drift in the same direction forever unless something pulls or pushes them to safety.
Detailed explanation-3: -Making oxygen from water Most people can survive only a couple of minutes without oxygen, and low concentrations of oxygen can cause fatigue and blackouts. To ensure the safety of the crew, the ISS will have redundant supplies of that essential gas.