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Why do objects have weight?
Objects have weight due to the force of gravity acting upon them. The weight of an object is a measure of the gravitational force pulling it towards the center of the Earth. The greater the mass of an object, the stronger the gravitational force and the heavier the object will be.
Distinguish between the mass of an object and the object's weight?
The mass of an object is unchanging relative to the local gravity. The weight of an object is relative to the strength of the gravity in which it is weighed. The metric unit gram is a measure of mass. The English system unit a pound is a measure of weight. Something that has a mass of 1 kilogram on Earth has the same mass on the Moon, but two entirely different weights. On Earth, a 1 kilogram mass weighs approximately 2.2 pounds. On the Moon, where the gravity is about 1/6th that of Earth, the same 1 kilogram mass weighs only a little over 1/3 of a pound. A weight of an object is a consequence of its having a mass, in the presence of a gravitational field. A mass is a property of the object, won't change unless the integrity of the object is affected. Its weight, though, is a consequence of the object being nearby another (massive) object, in most contexts that will be the (surface of the) Earth. Say a bowling ball weights 3 kilograms. This a short for saying 'on the surface of the Earth, this bowling ball is atracted to the Earth with a force of 3 kilograms', or, more properly said, with a force equal to 3 x 9,8 Newton (Newton is the proper measuring unit for force). If that bowling ball was on the surface of the Moon, it would weight about 0,5 kilograms, one sixth more or less of its weight on the Earth. Yet, its mass would still be 3 kilograms. If you were to hang vertically (somehow) from a rope your bowling ball, so it stands still, the rope would have to be able to resist 3 kilos in the Earth, in the Moon a rope that can take 0,5 kg would be enough. But say you try to throw the ball away, doing it the way hammer throw athletes do in the Olympics, swinging it around you in circles, then releasing it. While you make it turn around you (horizontally), the tension in the rope depends on the speed at which you make it turn and *the mass* of the ball. If you make it turn at the same speed (with the same rope length), the tension on the rope will be same on Earth and on the Moon. But the distance your throwing attempt will reach would be different, since it depends on *the weight* of the ball. On the Moon, all being equal (speed in swinging the ball, length of the rope, angle of your throw), you would reach 6 times farther than in the Earth. Other experiments you might perform on the Moon or on the surface on other unknown space bodies, might involve measuring the period of oscillations of your bowling ball when attached to string, or playing 'pool' with another ball of known mass and measuring speeds and angles after and before their collision. This is because the physics principles involved in those experiments (preservation of energy, preservation of linear momentum, respectively), do involve the mass of the objects, not their weight.
What is true about an objects weight but not about its mass?
An objects weight is the amount of the pull of gravity on an object. On the other hand, mass is the amount of matter in an object. You`re mass is the same on every planet. For example, lets say on earth you weighed 100 pounds. On Venus you would weigh the same. BUT, you`re weight is different on different planets. For example, on the moon, the amount of the pull of gravity on you would be different in a way that you would be 70% lighter. Hope that helps. Adios! And no, I am NOT Spanish.(False) It would be the same on the moon as it is on Earth.
Why do people have different weight on different planets or on the moon?
Because different planets have different mass, which means that gravity is weaker or stronger depending on the mass. If gravity is stronger than objects will have more weight, and if it's weaker they will have less weight.
What is the average weight of a watch?
The average weight of a wristwatch typically ranges from 1 to 3 ounces, depending on the materials used in its construction. Digital watches tend to be lighter, while analog watches with metal bands may weigh more.
What is a measurement of the force of gravity on the mass of an object?
That's what's usually called the object's "weight", at least on Earth.
The buoyant force on an object is least when the object is?
The buoyant force is zero when the object is just touching the liquid. As the object displaces more volume, the buoyant force increases until the object is completely submerged. Once the object is submerged, it doesn't matter how deep it is, the buoyant force remains constant.
What is the smallest upthrust force needed so that and object weighing 1600 N will float?
The smallest upthrust force needed for an object to float is equal to its weight. So, for an object weighing 1600 N to float, the upthrust force needs to be at least 1600 N. This is because the upthrust force is equal to the weight of the fluid displaced by the object, which in this case is equivalent to the weight of the object.
If the apparent weight of an object can be found by subtracting the buoyant force from the weight of the object what is the apparent weight of the floating object?
Zero.
Why might scientists measure the weight of an object rather than the weight of an object?
The mass of an object does not change , but its weight can vary.
Does the buoyant force on a floating object depend on the weight of the object itself or on the weight of the fluid displaced by the object?
The buoyant force on a floating object depends on the weight of the fluid displaced by the object, not on the weight of the object itself. This is known as Archimedes' principle.
Buoyancy force is determined by comparing the?
Buoyancy force is determined by comparing the weight of the fluid displaced by an object to the weight of the object itself. If the weight of the fluid displaced is greater than the weight of the object, the object will float. If the weight of the fluid displaced is less than the weight of the object, the object will sink.
When an object floats the buoyant force is the weight of the object?
If the object is floating, then the buoyant force is equal to the object's weight.
What is the net weight of a floating object?
The net weight of a floating object is equal to the weight of the object minus the weight of the fluid it displaces. When an object is floating, the buoyant force exerted by the fluid is equal to the weight of the object, causing it to stay afloat.
Is the weight of an object the frictional force on the object?
No the weight of an object has nothing to do with friction. Weight is the gravitational attraction of the object and the planet.
Does the buoyant force on a submerged object depend on the weight of the object itself or on the weight of the fluid displaced by the object?
The upward bouyant force depends only on the weight of the displaced fluid. The NET force (object's weight - bouyant force) depends on the object's weight and will determine how fast it sinks.
What happens when the water around objects have a force greater than the object's weight?
The water around floating object's is a measure of that object's "Displacement". For the object to float the weight of displacement must equal the object's weight. If the water around an object is of a greater weight than an object's displacement, then the object will sink.
