are objects weightless in space?
47634
Earth-orbiting astronauts are weightless for the same reasons that riders of a free-falling amusement park ride or a free-falling elevator are weightless. 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.
469762
Everything is made of matter, so any object you can name consists of matter. Basically, if it takes up space and has mass, it's matter.
1118274
In short, at the (gravitational, not arithmetical) centre of the Earth a particle would be pulled with equal force in all directions at once. Hence, “zero” gravity.
985836
The mass of an object refers to the amount of matter that is contained by the object; the weight of an object is the force of gravity acting upon that object. Mass is related to how much stuff is there and weight is related to the pull of the Earth (or any other planet) upon that stuff.
104099
Inertia affects all objects, and all objects have mass. The mass of an objects demonstrates how much matter is within the object. ... Weight can be seen as force, and the equation of a force is F(or weight)=mass*acceleration (gravity).
41268
If you were in space, floating, with no acceleration, you'd feel no g-force. ... TL;DR Yes, acceleration in space causes "g-forces", even if there is no gravity to speak of. G-force is just a measure of acceleration using the scale of gravity on earth.
627415
The mass of an object is a measure of the object's inertial property, or the amount of matter it contains. The weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it.
1379424
Mass and weight are not equal. They use different units and only have the same numerical values in certain unit systems, but not all. Mass is an intrinsic property of matter, while weight is a force that arises from the interaction between mass and gravity.
630517
Gravity causes every object to pull every other object toward it. Some people think that there is no gravity in space. In fact, a small amount of gravity can be found everywhere in space. Gravity is what holds the moon in orbit around Earth.
87983
Yes, AIR has weight. Air is a form of matter which has Mass & occupies Space. Technically, the Atmospheric Pressure (the pressure caused by the envelope of gasses or air surrounding the earth) is 14.7 lb/sq. in. or 6.7 kg/sq.
1386307
An object that falls through a vacuum is subjected to only one external force, the gravitational force, expressed as the weight of the object. ... The acceleration is constant and equal to the gravitational acceleration g which is 9.8 meters per square second at sea level on the Earth.
879202
Objects in space follow the laws or rules of physics, just like objects on Earth do. Things in space have inertia. That is, they travel in a straight line unless there is a force that makes them stop or change. The movement of things in space is influenced by gravity.
1155128
So, the gravitational force is super tiny. The only way we ever notice this force is if one of the interacting objects has a super huge mass—something like the mass of the Earth (5.97 x 1024 kg). ... The short answer is "yes"—there is gravity in space.
526317
This law states that two objects attract each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. ... And while the force of gravity may feel like zero out in space, gravity is everywhere all the time.
1205370
Air does, in fact, have weight, and here's a simple way you can prove it. You'll need two identical balloons, a string, and a dowel. Attach the uninflated balloons to either end of the dowel. ... You have demonstrated that air has weight!
322016
Gravity and weight. All objects with mass have a gravitational field around them. A gravitational field is where a mass experiences a force. All matter has a gravitational field that attracts other objects. The more mass an object has, the greater its gravitational field will be.
1183806
There are two important motion characteristics that are true of free-falling objects: Free-falling objects do not encounter air resistance. All free-falling objects (on Earth) accelerate downwards at a rate of 9.8 m/s/s (often approximated as 10 m/s/s for back-of-the-envelope calculations)