Sci. 8- Mechanical Systems: Section 2.1

You will need to read section 2.1 "Machines Make Work Easier" of your text and answer the following questions. The pages are included below for easy access and review to help with the questions. 

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Roads in the mountains have sections to help vehicles up a steep incline, by making sharp
turns back and forth in opposite directions, after raising the vehicle a little higher in altitude.
These roads are an example of a simple machine – the inclined plane, and are called ...

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Your car has a flat tire, but you don’t have a jack to lift it up, so you can change the tire.
What machine could you make that would make it possible to lift the car ...

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Mechanical advantage is the amount by which a machine can multiply a force. The force
that the machine applies to the object is called the ...

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To calculate mechanical advantage or force ratio, you divide the output force by the input
force. A machine that is able to move an object that weighs 36 Newtons with 6 Newtons of
force has a mechanical advantage of ...

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A pulley system can provide a mechanical advantage. Look at the illustration and identify what the mechanical advantage of this pulley system is.
Example:

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If it takes 45 N of force to lift a 180 N carton using a pulley system, what would the pulley
system look like ...

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Speed Ratio is calculated by dividing the ...

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To calculate the speed ratio of a pulley system, you count...

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In most machines, you don’t get something for nothing. When you gain a mechanical advantage, you are gaining ...

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A bicycle is a useful machine because it gets us from place to place much faster than we could walk. As a machine it has a mechanical advantage of less than one, but what about speed ratio? The speed ratio of a bicycle is ...

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What can account for the fact that mechanical advantage and speed ratio are different in real situations?

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Efficiency is a measure of how well a machine does work. Dividing the mechanical advantage by the speed ratio and multiplying the result by 100 will determine the efficiency of the machine. A pulley system that has a speed ratio of 3 and a mechanical advantage of 2 has an efficiency of ...

Roads in the mountains have sections to help vehicles up a steep incline, by making sharpturns back and forth in opposite directions, after raising the vehicle a little higher in altitude.These roads are an example of a simple machine – the inclined plane, and are called ...

Your car has a flat tire, but you don’t have a jack to lift it up, so you can change the tire.What machine could you make that would make it possible to lift the car ...

Mechanical advantage is the amount by which a machine can multiply a force. The forcethat the machine applies to the object is called the ...

To calculate mechanical advantage or force ratio, you divide the output force by the inputforce. A machine that is able to move an object that weighs 36 Newtons with 6 Newtons offorce has a mechanical advantage of ...

A pulley system can provide a mechanical advantage. Look at the illustration and identify what the mechanical advantage of this pulley system is. Example:

If it takes 45 N of force to lift a 180 N carton using a pulley system, what would the pulleysystem look like ...

Speed Ratio is calculated by dividing the ...

To calculate the speed ratio of a pulley system, you count...

In most machines, you don’t get something for nothing. When you gain a mechanical advantage, you are gaining ...

A bicycle is a useful machine because it gets us from place to place much faster than we could walk. As a machine it has a mechanical advantage of less than one, but what about speed ratio? The speed ratio of a bicycle is ...

What can account for the fact that mechanical advantage and speed ratio are different in real situations?

Efficiency is a measure of how well a machine does work. Dividing the mechanical advantage by the speed ratio and multiplying the result by 100 will determine the efficiency of the machine. A pulley system that has a speed ratio of 3 and a mechanical advantage of 2 has an efficiency of ...

Roads in the mountains have sections to help vehicles up a steep incline, by making sharp
turns back and forth in opposite directions, after raising the vehicle a little higher in altitude.
These roads are an example of a simple machine – the inclined plane, and are called ...

Your car has a flat tire, but you don’t have a jack to lift it up, so you can change the tire.
What machine could you make that would make it possible to lift the car ...

Mechanical advantage is the amount by which a machine can multiply a force. The force
that the machine applies to the object is called the ...

To calculate mechanical advantage or force ratio, you divide the output force by the input
force. A machine that is able to move an object that weighs 36 Newtons with 6 Newtons of
force has a mechanical advantage of ...

A pulley system can provide a mechanical advantage. Look at the illustration and identify what the mechanical advantage of this pulley system is.
Example:

If it takes 45 N of force to lift a 180 N carton using a pulley system, what would the pulley
system look like ...