Free fall is when the only forces acting upon an object is gravity. (There is no air resistance.) Weightlessness is when there is no gravity acting upon an object. (Weight is a measurement gravity.)
A shadow is something that is weightless but can be seen.
Objects in freefall are not weightless; they still have mass and therefore experience the force of gravity. However, in freefall, they are accelerating towards the Earth due to gravity, which gives the sensation of weightlessness as the force of gravity is canceled out by the acceleration.
In weightless conditions, a pendulum would not swing back and forth as it does on Earth due to the lack of gravitational force pulling it down. Instead, the pendulum would remain in its initial position or move in a straight line due to inertia.
A truly weightless object experiences no gravitational force, such as an object in deep space far from any massive body. An object that is weightless due to free fall is still under the influence of gravity but is in a state of free fall where the force of gravity and the acceleration of the object cancel out, making it feel weightless.
You feel weightless in a lift because the lift and everything inside it, including you, are accelerating downward at the same rate. This acceleration cancels out the force of gravity acting on you, making you feel weightless.
what industries would benefit the most from a weightless enviornment
Helium is a gas that is weightless, odourless, and would make a barrel lighter.
They actually are weightless, due to the fact there is no gravity in space. However a sky-diver would say he/she feels weightless, but they are experiencing free-fall.
No. It is light -- not heavy, but it is not weightless.
A shadow is something that is weightless but can be seen.
Objects in freefall are not weightless; they still have mass and therefore experience the force of gravity. However, in freefall, they are accelerating towards the Earth due to gravity, which gives the sensation of weightlessness as the force of gravity is canceled out by the acceleration.
Yes. In fact they would feel weightless.
At the center of the Earth, you would be weightless because the gravitational forces from the Earth's mass would be pulling equally in all directions, effectively canceling out the force of gravity acting on you.
Something is weightless when there are no gravitational forces acting upon it.
Well, according to Tony Abbott, carbon dioxide is a colourless, odourless and weightless gas. Anyone who paid attention in Science would know otherwise.
The statement that astronauts on the Moon are weightless is true.
The Weightless EP was created on 2004-05-29.