Are astronauts weightless on the return to Earth?

(A) An astronaut standing on Earth does not feel weightless because the ground creates a normal force that opposes the force of gravity. (B) An astronaut orbiting the Earth does feel weightless because there is no ground or normal force to counteract the force of gravity. Thus, the astronaut is falling.

Are astronauts weightless during launch to the station?

Astronauts are not weightless during either launch or return to Earth. Consider the statement “There’s no gravity in space.” This statement is: Completely false.

What does it feel like when astronauts return to Earth?

Nasa astronaut Bob Behnken has described descending back to Earth as feeling like “getting hit in the back of a chair with a baseball bat”.

Do you feel weightless in a rocket?

They are weightless because there is no external contact force pushing or pulling upon their body. In each case, gravity is the only force acting upon their body. Being an action-at-a-distance force, it cannot be felt and therefore would not provide any sensation of their weight.

Why are astronauts weightless in the space station?

Astronauts float around in space because there is no gravity in space. Everyone knows that the farther you get from Earth, the less the gravitational force is. Well, astronauts are so far from the Earth that gravity is so small. This is why NASA calls it microgravity.

What happens to astronauts muscles when they return to Earth?

Without regular use and exercise our muscles weaken and deteriorate. It’s a process called atrophy. Studies have shown that astronauts experience up to a 20 percent loss of muscle mass on spaceflights lasting five to 11 days.

Do astronauts float in space?

Astronauts float around in space because there is no gravity in space. Everyone knows that the farther you get from Earth, the less the gravitational force is. Well, astronauts are so far from the Earth that gravity is so small. Because there is no air in space.

Why is it incorrect to say that astronauts are weightless in space while orbiting Earth in a space shuttle quizlet?

The statement is wrong. First, gravity is the centripetal force that keeps the astronauts and their spacecraft in orbit around the Earth, so the astronauts aren’t beyond gravity’s influence.

Are astronauts weightless because they are beyond Earth’s gravitational influence?

Astronauts feel weightless because they are accelerating towards the earth at the same rate as the spaceship.

Is it true that an astronaut is wheightless in space?

The answer to this is just a bit more complicated, but the basis is that there is some gravity in space, so the weightless condition of the astronauts doesn’t have anything to do with gravity. In reality , the astronauts are actually falling and so is the space station.

Why do astronauts in space experience weightlessness?

Astronauts orbiting the Earth in a spacecraft feel weightless because nothing is stopping their fall due to the force of gravity. On Earth we feel weight. Weight is the force of the ground holding us up against the pull of gravity.

What do astronauts need to stay alive in space?

The survival needs of astronauts in space depend on the amount of time in question, but for standard, short missions, they require protection against the frigid temperatures and protection from solar glare and the vacuum. These needs are particularly pressing during spacewalks, when astronauts are outside their ships.

Which Apollo 11 astronauts are still alive?

Each Apollo mission also included a pilot who remained in orbit around the moon while a two-man landing crew flew to the surface. Four of those pilots – Apollo 11’s Michael Collins, Apollo 12 ‘s Dick Gordon , Apollo 15 ‘s Al Worden and Apollo 16 ‘s Ken Mattingly – are still alive.