Front

What is work in physics?

Back

Work is defined as the product of force and the distance over which it acts, measured in joules (J).

Front

What is a simple machine?

Back

A simple machine is a device that changes the direction or magnitude of a force, making work easier. Examples include levers, pulleys, and inclined planes.

Front

What is mechanical advantage?

Back

Mechanical advantage is the ratio of the output force produced by a machine to the input force applied, indicating how much a machine multiplies force.

Front

What is a lever?

Back

A lever is a simple machine consisting of a rigid bar that pivots around a fixed point called the fulcrum, used to lift or move loads.

Front

What is a wedge?

Back

A wedge is a simple machine that consists of two inclined planes joined together, used to split or lift objects.

Front

What is an inclined plane?

Back

An inclined plane is a flat surface tilted at an angle to help raise or lower objects with less effort.

Front

What is a wheel and axle?

Back

A wheel and axle is a simple machine consisting of a larger wheel attached to a smaller axle, used to reduce friction and move loads more easily.

Front

How do you calculate mechanical advantage?

Back

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

Front

What is the mechanical advantage of a lever if a 1000 N force lifts a 10,000 N load?

Back

The mechanical advantage is 10.

Front

If Jeff weighs 150 pounds and lifts a 600-pound rock using a lever, what is the mechanical advantage?

Back

The mechanical advantage is 4.