Front

What is the output force of a machine?

Back

The force the machine exerts on an object.

Front

What is the efficiency of a machine?

Back

The ratio of useful work output to total work input, expressed as a percentage.

Front

How do you calculate work done?

Back

Work done (Joules) = Force (Newtons) x Distance (meters).

Front

What is the formula for mechanical advantage?

Back

Mechanical Advantage = Output Force / Input Force.

Front

What is the significance of mechanical advantage in simple machines?

Back

It indicates how much a machine multiplies force.

Front

What causes machines to not be 100% efficient?

Back

Friction and other energy losses.

Front

If a machine has an input force of 50 N and an output force of 200 N, what is its mechanical advantage?

Back

Mechanical Advantage = 200 N / 50 N = 4.

Front

What is the relationship between input work and output work in an ideal machine?

Back

In an ideal machine, input work equals output work.

Front

What is an inclined plane?

Back

A flat surface tilted at an angle to help lift objects.

Front

How does friction affect the efficiency of a machine?

Back

Friction reduces the amount of useful work output, lowering efficiency.