Mechanical Systems - Quiz #2

The mechanical advantage of a machine is the amount by which a machine can multiply a force.

• True

• False

The force applied to the machine is called...

• Output force

• Individual force

• Input force

• Specific force

The force the machine applies to the object is called...

• Input force

• Output force

• Applied force

• intentional force

Input and output forces are measured in...

• Grams

• Pounds

• Kilograms

• Newtons

The formula for calculating the Mechanical Advantage is...

• Output Force / Input force = MA

• Input force / Output force = MA

• Direction x Angle = MA

• Angle x Speed = MA

Explain why knowing a machine's mechanical advantage is important?

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The Speed Ratio measures the distance an object travels in a given amount of time.

• False

• True

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Are machines with a mechanical advantage LESS THAN 1 still beneficial? Explain.

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A force that opposes motion is...

• Angle

• Friction

• Slipperyness

Why can a machine NEVER be 100% efficient?

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