Using Machines Flashcardizz

Front

What is mechanical advantage?

Back

Mechanical advantage (MA) is the ratio of the output force produced by a machine to the input force applied to it. It indicates how much a machine multiplies force.

Front

How do you calculate mechanical advantage?

Back

Mechanical advantage can be calculated using the formula: MA = Output Force / Input Force.

Front

What is the unit of mechanical advantage?

Back

Mechanical advantage has no unit; it is a dimensionless quantity.

Front

What is the efficiency of a machine?

Back

Efficiency is the ratio of useful work output to total work input, expressed as a percentage.

Front

What is the efficiency of an ideal machine?

Back

The efficiency of an ideal machine is 100%, meaning all input work is converted to output work without any losses.

Front

What happens to energy when a machine does work on an object?

Back

When a machine does work on an object, energy is transferred from the machine to the object.

Front

What is input force?

Back

Input force is the force applied to a machine to perform work.

Front

What is output force?

Back

Output force is the force exerted by a machine on an object to perform work.

Front

If a hammer has an input force of 125 N and an output force of 2000 N, what is its mechanical advantage?

Back

The mechanical advantage is 16 (MA = 2000 N / 125 N).

Front

If a hammer's claw moves 0.01 m and the handle moves 0.05 m with an output force of 1500 N, what is the input force?

Back

The input force is 300 N.