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James Schwerdtfeger
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What must take place in order for work to be done?
Energy in some form must be expended, if the machine is 100 percent efficient the work done in Joules will equal the energy input in Joules, but of course machines are never 100 percent efficient, there are always some losses.
What is the force that prevents all machines from being 100 percent efficient?
Friction is the force that prevents all machines from being 100 percent efficient. It produces a resisting force that hinders the machine's complete functioning. Reducing friction will enhance efficiency.
What is true about machines in the real world?
In the real world, machines are never 100% efficient. There is always loss of energy, usually due to friction. By contrast, in physics problems, an "ideal machine" is a hypothetical device which is perfectly efficient. The assumption of perfect efficiency allows the problem to focus on the fundamental mechanical principles.
Is a nuclear generator 100 percent efficient?
No, no machine is 100% efficient.
Does an ideal machine have an effciency of 100 percent?
No, there is not such thing as an ideal machine; it's just an idea.
Why are no machines 100 percent efficient?
Some energy is lost to friction.
What force stops machines from being 100 percent efficient?
Any mechanical action will waste energy as heat, therefore the work output is always less than the enegry input.
What are some reason that machines are not 100 percent efficient?
friction and entropy the production of heat with in a system
Explain why machines are not 100 percent efficient?
because they are not proper
Why aren't machines 100 percent efficient?
becaus ethey have friction
What must take place in order for work to be done?
Energy in some form must be expended, if the machine is 100 percent efficient the work done in Joules will equal the energy input in Joules, but of course machines are never 100 percent efficient, there are always some losses.
What is the force that prevents all machines from being 100 percent efficient?
Friction is the force that prevents all machines from being 100 percent efficient. It produces a resisting force that hinders the machine's complete functioning. Reducing friction will enhance efficiency.
What of the simple machines is the most efficient?
A screw is the most efficient.
Why are simple machines more efficient than compound machines?
They are less so eAsier
What is true about machines in the real world?
In the real world, machines are never 100% efficient. There is always loss of energy, usually due to friction. By contrast, in physics problems, an "ideal machine" is a hypothetical device which is perfectly efficient. The assumption of perfect efficiency allows the problem to focus on the fundamental mechanical principles.
Are electric heaters 100 percent efficient?
No. Nothing is 100 percent efficient. In any situation some energy will be given off in a form that is useless to us.
Is a nuclear generator 100 percent efficient?
No, no machine is 100% efficient.
