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How do you calculate work done on an object .?
The equation to calculate the work done is: Work done (J) = force applied (n) x distance moved of force (m)
What is the evidence for determining whether or not work is done on an object?
Basically if the energy of the object has changed. For example if you lift something off the ground you have applied a force through a distance in the same direction as the force. By lifting the box you have given it gravitational potential energy (mgh). If you drop the box then gravity does work because the force of gravity will apply a force through a distance in the same direction. Just because there is force, doesn't mean work has been done. For example if you look at uniform circle motion even though there is a force, known as centripetal force, there is no work being done. This is because centripetal force is always perpendicular to velocity and only components of force parallel to the object can do work on it. We can tell no work has been done because the kinetic energy of the object remains the same (=1/2*m*v2).
What happens when a force moves an object over a distance?
Work
How much work is done when a vertical force acts on an object moving horizontally?
as work done is dot product of force and displacement so cos(90)=0;therfore work done is zero
How is the work output of a machine related to its work input?
Note: This answer addresses simple machines, such as levers, pulleys, and ramps - it does not address complex machines, such as engines..Machines affect work by applying one or more of the following principles:altering the amount of force applied in order to do the work;altering the amount of time over which the force is applied; and/oraltering the direction that the force is applied..A simple pulley, or a balanced lever, does not change the amount of force required to lift an object, or the time during which the force is applied, but they do change the direction of the force. A balanced lever (a teeter totter) makes it easier to lift another object (your friend on the other end of the teeter totter) because you can use your own weight to help lift that object (your friend). Such simple, balanced machines do not decrease the force, nor increase the amount of time during which the force is applied - they merely redirect the force, which is often helpful..Ramps, pulleys, and levers can also reduce the required force, in addition to changing the direction of the applied force, making the work easier in two ways. For example, a compound pulley reduces the amount of force required to lift a heavy object, but it now takes more time of that applied force to lift the weight. When this occurs, the machine does not actually change the amount of work done, but the machine makes it easier to do the same amount of work by spreading that work done over a longer period of time at a reduced force..Some machines use the opposite principle - they require more force than normal, but the force is applied over a reduced period of time. A catapult is an example of this principle - it is a lever in which more work is required to lift an object than without the catapult lever, but the object is lifted so quickly that, by the time the object is lifted, it is travelling fast enough to become a ballistic object.A machine affects work done by magnifying human's physical capabilities which reduces the intensity of the work.
Work is done when only what is applied?
Work is done when a force is applied to an object and the object moves in the direction of the force. It is calculated by multiplying the force applied by the distance the object moves in the direction of the force. If there is no movement, then no work is done.
Where do you say that work is done an object?
Work is done on an object when a force is applied to the object and the object moves in the direction of the force. The work done is calculated as the product of the force applied and the distance the object moves in the direction of the force.
What is the only condition that work is done?
Work is done when a force is applied to an object and the object moves in the direction of the force. If there is no movement, no work is done, even if a force is applied.
When a force is applied that moves an object in the direction of the applied force what is done?
When a force is applied to an object in the direction of the force, work is done on the object. Work is defined as the product of the force applied and the distance over which the force acts in the direction of the force. Therefore, when an object is moved in the direction of the applied force, work is performed on the object.
How do we know if work is done?
Work is done when a force is applied to an object and it causes the object to move in the direction of the force. The work done is equal to the force applied multiplied by the distance the object moves in the direction of the force. If there is no movement or the force is not in the direction of movement, then no work is done.
In order for work to be done on an object the object has to move and?
force has to be applied to it. Work is calculated by multiplying the force applied to the object by the distance the object moves in the direction of the force. Without both force and movement, no work can be done on an object.
What has to happen in order for work to be done on an object?
Work is done on an object when a force is applied to move the object through a distance in the direction of the force. The amount of work done is equal to the force applied times the distance the object moves.
What force has to touch an object to work?
A force has to be applied to an object in order for work to be done on the object. Work is defined as the product of the force applied to an object and the distance it moves in the direction of the force.
What determines the amount of work done on an object?
The amount of work done on an object is determined by the force applied to the object and the distance over which the force is applied in the direction of the force. The work done is calculated by multiplying the force by the distance traveled in the direction of the force.
True or false work is done only when an object moves in the direction of the applied force?
False. Work is done whenever a force is applied to an object and there is a displacement in the direction of the applied force, whether the object moves in that direction or not. In cases where the object does not move, work is still done as long as there is a force applied over a distance.
Distinguish cases when work is done and when it is not?
The cases when work is done and when it is not are quite distinct. Where work is done, the task is completed to satisfaction but where it is not, it means it has either not been started or it has been done below standard.
What is something done when a force moves an object over a distance?
Work is something that is done when a force moves an object over a distance.
