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The mechanical advantage is less than 1 when the output is less than the input. Mechanical advantage is expressed as the ratio of the output to the input. You can move an object far faster than your source of power is capable of working. Such as in the final gears in your car, where the wheels are turning faster than the engine is.
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What benefit is provided by a lever that operates at a mechanical advantage?
A lever operating at a mechanical advantage allows you to apply less force to lift or move a heavier object. This makes it easier to perform tasks that would otherwise require more strength.
What is true about the mechanical advantage of a machine a it increases with greater friction b it decreases as the input distance increases c it is less than the idle mechanical advantage?
c) It is less than the idle mechanical advantage. The actual mechanical advantage of a machine is always less than the ideal mechanical advantage due to factors like friction and energy losses in the system.
Why is a third class lever useful for some tasks?
A third class lever is useful for tasks that require increased speed or range of motion. They provide a mechanical advantage, allowing for quick and agile movements while using less force. Third class levers are commonly found in the human body, such as in the bicep muscle, enabling efficient movement and dexterity.
How does the ideal compare with the actual mechanical advantage?
The ideal mechanical advantage is based on the geometric relationships of a machine's components and assumes no energy losses, while the actual mechanical advantage accounts for friction, inefficiencies, and other factors that can reduce the output compared to the input force. In reality, the actual mechanical advantage is always less than the ideal mechanical advantage due to these energy losses.
Can a machine be useful even if its mechanical advantage is less than one explain and give an example?
Yes, a machine can still be useful even if its mechanical advantage is less than one. This can happen when the machine reduces the amount of force needed to perform a task, even though the output force is less than the input force. An example of this is a pulley system, where the force needed to lift an object is reduced by distributing the load over multiple ropes and pulleys.
What is the mechanical advantage of a machine without friction?
Machinal advantage, also known as mechanical advantage, refers to the ratio of the force produced by a machine to the force applied to it. A machine can be useful even its machinal advantage is less than 1.
Can a machine be useful even if its mechanical advantage is less than 1?
yes
What is true about the mechanical advantage of a machine?
it is less than the ideal mechanical advantage
How does actual mechanical advantage compare with ideal mechanical advantage?
The actual mechanical advantage is usually less, due to losses.
What benefit is provided by a lever that operates at a mechanical advantage?
A lever operating at a mechanical advantage allows you to apply less force to lift or move a heavier object. This makes it easier to perform tasks that would otherwise require more strength.
What is true about the mechanical advantage of a machine a it increases with greater friction b it decreases as the input distance increases c it is less than the idle mechanical advantage?
c) It is less than the idle mechanical advantage. The actual mechanical advantage of a machine is always less than the ideal mechanical advantage due to factors like friction and energy losses in the system.
If the output force is less than the input force of a simple machine the mechanical advantage less than one?
it means the mechanical advantage is greater.
If the input force is less than the input force of a simple machine the mechanical advantage is less than one?
it means the mechanical advantage is greater.
Why is a third class lever useful for some tasks?
A third class lever is useful for tasks that require increased speed or range of motion. They provide a mechanical advantage, allowing for quick and agile movements while using less force. Third class levers are commonly found in the human body, such as in the bicep muscle, enabling efficient movement and dexterity.
Can a inclined plane have a mechanical advantage of less than 1?
The mechanical advantage of an inclined plane is equal to length divided by height (l/h). Therefore, if the length is less than than the height, the mechanical advantage would be less than one.
Why are third class levers used if their mechanical advantage is less that one?
Mechanical advantage is not the only reason to use levers.
How does the ideal compare with the actual mechanical advantage?
The ideal mechanical advantage is based on the geometric relationships of a machine's components and assumes no energy losses, while the actual mechanical advantage accounts for friction, inefficiencies, and other factors that can reduce the output compared to the input force. In reality, the actual mechanical advantage is always less than the ideal mechanical advantage due to these energy losses.
