KIDS QUIZ
SPACE EXPLORATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
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.
|
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: -When astronauts go on spacewalks, they wear spacesuits to keep themselves safe. Inside spacesuits, astronauts have the oxygen they need to breathe. They have the water they need to drink. Astronauts put on their spacesuits several hours before a spacewalk.
Detailed explanation-3: -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-4: -The suits protect astronauts from getting too hot or cold. Spacesuits also give astronauts oxygen to breathe while they are working in space. The suits hold water to drink.