dinasoars
A machine that starts with O is an oscillating fan.
The additional features of an oscillating fan that set it aside from a more traditional / regular fan is that oscillating fans also move from side to side whilst blowing.
Yes, a fan is a compound machine. This is because it is made up of several simple machines connected together.
One can purchase an oscillating fan from retail stores like Wall Mart, Target and many more. One can also buy an oscillating fan from online sites like eBay or Amazon as well.
A ceiling fan is a compound machine, consisting of simple machines such as a wheel and axle (fan blades), a motor (source of power), and gears (to control speed).
Pulley
because it is a fan
a compound machine
Pulley
A pendulum is a type of simple machine known as an oscillating or swinging lever. It consists of a mass (bob) attached to a fixed point by a rod or string and utilizes the force of gravity to create a repetitive back-and-forth motion.
Any wholesale department store will likely sell small oscillating fans. Walmart would likely be the most cost effective place to buy a small oscillating fan.
Rotation motion