Some examples of compound machines include scissors, wheelbarrows, lawn mowers and bicycles. Compound machines are just simple machines that work together.
Scissors are compound machines because they contain both a wedge and a lever. Bikes contain pulleys, screws, levers, wheels, axles and inclined planes.
A simple machine is a device or mechanism that changes force. Levers are simple machines that output force from a pivoting point. There are three kinds of levers used in simple and compound machines. They are hammer-type, wheelbarrow type and arm.
Pulleys are another simple machine used to make compound machines. Pulleys work by changing force due to the rotation of a pulley wheel. The wheel and axle is also a simple machine that is simply a pulley attached to a shaft. A car steering wheel and a Ferris wheel are good examples of wheel and axles.
Inclined planes redirect and redistribute horizontal force into vertical force and a wedge is two inclined planes which are back to back. Screws are used in compound machines and are merely inclined planes wrapped around a small cylinder. All of these simple machines can go into making compound machines. Some compound machines only use two while others use a variety of simple machines.Learn More
A machine is any device that transmits mechanical energy or power into useful work. The simplest machines redirect an applied force or convert kinetic energy into potential energy. More complicated machines are powered by electricity or fuel and use moving parts and electronic circuitry to complete complex tasks.Full Answer >
When a leaf falls, it is being accelerated by gravity to the ground. It is opposed, however, by air resistance, also known as the drag. The net force on a leaf is calculated by subtracting its weight from its drag.Full Answer >
To calculate the flow rate in a cylindrical pipe, the basic formula, which is flow rate is equivalent to pipe cross-sectional area multiplied by velocity, can be used. Here the area is calculated as pi times pipe diameter squared and divided by four.Full Answer >
An common example of a lever is a see-saw. Some other levers are pliers, crowbars, wheelbarrows, scissors, staplers, fishing rods, tweezers, nut crackers and fishing rods.Full Answer >