# Basic Machines and Motion

SKU: C-609Duration: 8 Minutes

This course discusses what mechanical advantage is and the different basic machines that have a mechanical advantage. These machines include levers, pulleys, wheels, inclined planes, wedges, screws, and gears. This course also describes the different types of motion including linear, circular, harmonic, and wave

### Course Details

#### Specs

Training Time: 8 minutes

Compatibility: Desktop Only

Based on: Industry Standards and Best Practices

Languages: English

### Learning Objectives

• Levers
• Pulleys
• Wheels
• Inclined planes
• Linear motion
• Circular motion
• Harmonic motion
• Wave motion
• Types of levers, inclined planes, and wheels

### Key Questions

The following key questions are answered in this module:

What does the term mechanical advantage (MA) mean, when being referred to in engineering?
In engineering, mechanical advantage (MA) is the factor by which a machine multiplies the force put into it. There are 2 types of mechanical advantage: ideal mechanical advantage (IMA) is the mechanical advantage of an ideal machine, and actual mechanical advantage (AMA) is the mechanical advantage of a real machine.

What determines the class of a lever, and what are they?
The position of the three components on the lever arm determines what class of lever it is: a first class lever has the fulcrum located between the effort force and the load force on the lever arm, a second class lever has the load force located between the effort force and the fulcrum on the lever arm, and a third class lever has the effort force located between the fulcrum and the load force on the lever arm.

What is an inclined plane and what are they used for?
Inclined planes are objects that have two nonparallel sides (a ramp). These planes are used to gain a mechanical advantage by allowing weights to be raised slowly over a distance rather than straight up in one step. The effort force required to raise a weight is decreased by increasing the distance over which that force must be applied.

How does a gear transfer motion from one place to another?
They work together in groups of two or more. One gear turns another, which may turn another, and so on. Gears are measured by counting the number of teeth they have. When two different sized gears engage their teeth, a mechanical advantage ensues. The length of the back cone distance from the circular pitch of the gear's teeth to the center of the gear makes the torque ratio of each gear.