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Does friction cause more energy to be wasted if the object is heavier Why?
Wiki User
∙ 14y ago
Friction between two objects = C X N. where C is the coeffiecient of friction for the objects in question, and N is the 'Normal' force. The normal force is the force equal and opposite to the object's weight. Therefore, if you increase the object's weight, the friction force increases, and the amount of energy wasted increases.
Wiki User
∙ 14y ago
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If tight scissors have an efficiency of 50 percent half of your effort is wasted due to what?
It is due to friction.
How is energy wasted?
By Anthropogenic activity. (not me) By leaving on lights. (me) By leaving on the TV whilst you are on the PC or not in the room. (me)
What does it mean that a form of energy might take more energy to harness than it provides?
It means that we would get less energy out of that source than we put into it, so the net result is wasted energy.
During an energy transfer what happens to the total amount of energy?
Energy can not be destroyed, so the total amount of energy before a change is equal to the amount of energy after the change. However, some energy is changed into a useful form, but some may be wasted and not used. For example, a light bulb, changes electrical energy into light energy, but some of the energy is changed to heat and some to sound, these are not useful and are wasted, but are changed nonetheless. So a transformation from mechanical energy to heat will have the same total energy at the start as at the finish, but unless it is 100% efficient some of the original energy will be 'lost'
Why is w out is always less than w in?
That is becasue no machine is 100% efficient - SOME energy usually gets wasted.
When an object loses kinetic energy due to a force of kinetic friction is the loss of kinetic energy transformed primarily into potential or thermal energy?
Kinetic friction is associated with thermal energy (and sound or light).
Is friction a way to produce heat energy?
Yes. Whenever energy is wasted through friction, most of this wasted energy is converted to heat.
What role does friction play in energy transformations?
In many cases, energy is wasted due to friction - meaning that useful energy is converted into unusable energy.
Can you do work by simply rotating object and why?
Yes. The energy from the work you do can be wasted due to friction. But in such a case, it still requires work to rotate an object - since you are applying force, and you are applying it over a certain distance.
Why does the pendalum stop?
Movement energy is gradually wasted, that is, converted to other energy forms due to friction.
What is the wasted energy from a rocket?
The wasted energy in a car is electrical energy
Why does a saw become warm when it is used to cut a log of wood. State the energy transformation taking place?
Mechanical energy is wasted due to friction. The wasted energy is converted into heat.
What type of energy is created by friction?
Energy wasted due to friction is converted mostly to heat.
Why does the mechanical (total) energy of the skater not change over time?
It certainly does; mechanical energy will be wasted due to friction. Otherwise, if you disregard friction, the fact that the total mechanical energy is conserved follows from conservation of energy.
Does friction work to speed up or slow down an object?
The measure of friction is the amount of energy lost by heating through contact. This energy is generally lost through abrading the surfaces, or at least re-arranging the surface molecules. Thus it will absorb kinetic energy, and the object will slow down.
When energy is released when friction is applied?
friction creates heat. Largely heat, which comes from the external agent energy causing the friction. Also some possible rearrangement of the atomic/molecular structure of the surface, and the energy for that also comes from the external agent.
Why is the amount of that a machine does is less than the amount put into the machine?
In such a machine, the remaining energy is wasted to friction
