(A) An astronaut standing on Earth does not feel weightless because the ground creates a normal force that opposes the force of gravity. … However, since the astronaut is also moving forward super fast, he/she continuously falls around the Earth rather than crashing into the Earth.
Is it true that an astronaut is weightless in space?
Astronauts merely feel weightless because there is no external contact force pushing or pulling upon their body. They are in a state of free fall.
Why are astronauts in space said to be weightless but not massless?
why are the astronauts in space said to be weightless but not massless? because the force of gravity is extremely small and space in a lack of attraction between bodies that gives away to that astronauts is essentially absent. they maintain their intrinsic Mass however.
Why are astronauts weightless in space quizlet?
Why are astronauts weightless in the space station? because they are in a constant state of free fall around the Earth. … An object remains in motion at constant velocity, or remains at rest, unless acted upon by a net force.
Do astronauts float in space?
If 90 percent of Earth’s gravity reaches the space station, then why do astronauts float there? The answer is because they are in free fall. In a vacuum, gravity causes all objects to fall at the same rate. … Since they are all falling together, the crew and objects appear to float when compared with the spacecraft.
Why is an object’s mass rather than its weight?
What is mass? The measure of how much matter there is in an object. Why do scientist rely on mass rather than weight as the measurement of how much matter an object contains? Because unlike its weight, an objects mass will not change if the force of gravity changes.
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.
Why does an astronaut float in the International space station quizlet?
your friendsays: “When astronauts are in the space station,they are floating because there is no gravity.” How do you respond?
Why would you feel weightless if you were on a spacecraft orbiting the Earth quizlet?
Astronauts orbiting Earth in a spacecraft feel weightless in space because: They are in a constant free fall around the Earth. How much would the force of Earth’s gravity at its surface differ if the Earth’s volume were increased 125 times while its mass was increased 25 times? No difference.
What is the difference between weightlessness in space and weightlessness in Earth?
In space we feel weightlessness because the earth’s gravity has less effect on us. … The Earth’s gravitational attraction at those altitudes is only about 11% less than it is at the Earth’s surface. If you had a ladder that could reach as high as the shuttle’s orbit, your weight would be 11% less at the top.
Why do astronauts weigh less on the moon?
Density is a measure of how much mass is concentrated in a given space. Sir Isaac Newton discovered that as an object’s mass increases, the gravitational attraction of that object increases. … Thus, the gravitational attraction on the Moon is much less than it is here on Earth, and a person weighs less on the Moon.
Why do astronauts wear diapers?
A Maximum Absorbency Garment (MAG) is an adult-sized diaper with extra absorption material that NASA astronauts wear during liftoff, landing, and extra-vehicular activity (EVA) to absorb urine and feces. … Nonetheless, the garment provides peace of mind for the astronauts.