0
Any mechanical action will waste energy as heat, therefore the work output is always less than the enegry input.
Wiki User
ā 7y ago
One major factor that limits the efficiency of machines is friction. Friction creates resistance as moving parts come into contact with each other, leading to energy losses in the form of heat. Additionally, other factors such as air resistance, electrical resistance, and imperfections in materials can also contribute to reducing the overall efficiency of machines.
Wiki User
ā 9y agoThere are no machines that are 100 percent efficient because they are made by humans. All humans have a margin of error.
Wiki User
ā 13y agomachines are not 100% efficient because energy is used to overcome friction (and this appears as heat energy)
Wiki User
ā 9y agoFriction prevents machines from being 100% efficient.
Wiki User
ā 12y agoIn real machines, some energy is usually lost, due to friction and other effects.
Add your answer:
Earn +20 pts
What is it being When 100 percent of radiation bounces off of an object?
The radiation is being totally reflected.The object is absorbing momentum from the radiation, and is experiencinga force ... being 'pushed' ... in the direction that the radiation was travelingbefore the bounce.I'm not making that up.
What is 90 percent of Earths gravity?
90 percent of Earth's gravity would be equal to 9 m/sĀ². This means that an object on Earth would experience a gravity force that is 90 percent of the normal force due to Earth's gravity.
What determines whether or not work is being 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. Mathematically, work is calculated as the force applied multiplied by the distance the object moved in the direction of the force. If there is no movement or if the force is not in the same direction as the movement, then no work is being done.
Do force exist to object at rest?
There CAN be, as long as the force is being counterd by an equal and opposite force.
What is the scientific meaning of valid?
Strong; powerful; efficient., Having sufficient strength or force; founded in truth; capable of being justified, defended, or supported; not weak or defective; sound; good; efficacious; as, a valid argument; a valid objection., Having legal strength or force; executed with the proper formalities; incapable of being rightfully overthrown or set aside; as, a valid deed; a valid covenant; a valid instrument of any kind; a valid claim or title; a valid marriage.
What is the force that prevents all machines from being 100 percent efficient?
One reason for this is friction, which results in energy loss due to heat production. Additionally, there are inefficiencies in the conversion of energy from one form to another, such as from mechanical to electrical energy. Finally, external factors like air resistance can also contribute to reducing the overall efficiency of machines.
What must take place in order for work to be done?
For work to be done, force must be applied to an object causing it to move in the direction of the force. The amount of force applied and the distance over which the force is exerted determines the work done on the object. Work is calculated as the product of force and displacement in the direction of the force.
What is Force you put into simple machines?
Tension is the force being used in Simple Machines. As well as simple machines may have a little gravity used, tension is the most used.
Why does friction stops machines from not being 100 percent efficient?
Because friction causes a dissipation of heat energy and other kinetic energy. If you use the equation f = ma (Newton's law), where f= force, m= mass; a= acceleration, you can apply this to any machine and factor friction into the mass x acceleration equation. it will always decrease hypothetical force when applied with friction.
A measure of the amount a machine multiplies a force is its advantage?
The advantage of a machine is the ratio of the output force to the input force. It determines how much a machine amplifies or magnifies the input force applied to it. Machines with a higher advantage are more efficient at multiplying force.
How is force affect when a simple machine is used?
simple machines are used by being pulled or pushed
Work is made easier when what changes the direction or size of the force needed to do the work?
Work is made easier when machines such as levers, pulleys, wheels, and inclined planes are used to change the direction or magnitude of the force applied, allowing for a more efficient use of energy. These machines help reduce the amount of force needed to perform a task by utilizing principles of mechanical advantage.
What kind of machines are astronauts trained on to simulate being in space?
They use centrifical force machines to duplicate high G-forces. They train underwater to simulate weightlessness.
What is the force exerted by machines?
torque
Can you make work easier physics?
In physics, work is defined as the force applied to an object over a distance. To make work easier, you can either increase the force applied or shorten the distance over which the force is applied. Using tools or machines can also help by amplifying the force applied or making it more efficient.
Distinguish between theoretical mechanical advantage and actual mechanical advantage How will these compare if a machine is 100 percent efficient?
Theoretical mechanical advantage is the ratio of the input force to the output force without considering friction, while actual mechanical advantage includes frictional losses in the machine. If a machine is 100 percent efficient, there will be no frictional losses, so the theoretical and actual mechanical advantages will be the same, resulting in a 1:1 ratio of input force to output force.
When dealing with simple machines and compound machines how do you find the force?
you can measure
