Mechanisms: Inclined Planes, Wedges, and Screws

The video tutorial covers three types of simple machines: inclined planes, wedges, and screws. It explains how inclined planes provide mechanical advantage by allowing easier lifting of loads. Wedges are described as moving inclined planes used for splitting, with similar mechanical calculations. Screws are detailed with their parts and how they provide mechanical advantage, including terminology like diameter and threads per inch.

What is the primary function of an inclined plane?

• To change the direction of a force

• To decrease the weight of an object

• To make lifting a load easier

• To increase the speed of an object

How is the mechanical advantage of an inclined plane determined?

• By the weight of the load

• By the material of the ramp

• By the angle of the ramp

• By the length of the ramp compared to its height

What is a wedge primarily used for?

• To measure angles

• To split things apart

• To lift heavy objects

• To hold objects together

Which of the following is true about the effort arm of a screw?

• It is the diameter of the screw

• It is the length of the wrench or screwdriver used

• It is the number of threads per inch

• It is the weight of the screw

What does the number in front of a screw's description indicate?

• The type of material

• The length of the screw

• The diameter of the screw

• The color of the screw