Class 5 Science Chapter 10 Simple Machine @kidsknowledgepoint
1. What are Simple Machines? Simple machines are basic devices that make work easier by changing the direction or amount of force needed to move an object. They don't have many moving parts and are the building blocks for more complex machines. 2. Types of Simple Machines There are six main types of simple machines: a. Lever: A lever is a stiff bar that moves on a fixed point called a fulcrum. It helps lift or move loads with less effort. Imagine using a seesaw, crowbar, or a bottle opener; these all use levers. Levers can be found in tools like scissors (which actually have two levers!). b. Inclined Plane: An inclined plane is a flat surface tilted at an angle, like a ramp. It makes it easier to move heavy objects up or down. For example, a ramp used for loading goods into a truck or a slide at the playground are inclined planes. c. Wheel and Axle: This simple machine consists of a wheel attached to a rod (axle). When the wheel turns, the axle turns, making it easier to move or ca...