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Simple Machines Video Lecture - Class 5
FAQs on Simple Machines Video Lecture - Class 5
| 1. What are simple machines? |  |
Ans. Simple machines are basic mechanical devices that make work easier by altering the force or direction of a load. They are the building blocks of more complex machines and can be found in everyday objects such as levers, pulleys, and inclined planes.
| 2. How many types of simple machines are there? | |
Ans. There are six types of simple machines: lever, pulley, wheel and axle, inclined plane, wedge, and screw. Each type has its own unique way of multiplying or changing the direction of force.
| 3. What is the purpose of a lever? | |
Ans. A lever is a simple machine that consists of a rigid bar that pivots around a fixed point called a fulcrum. Its purpose is to increase the force applied to a load or change the direction of the force. Levers are commonly found in seesaws, scissors, and crowbars.
| 4. How does an inclined plane work? | |
Ans. An inclined plane is a flat surface that is angled, allowing objects to be moved along it. It reduces the force needed to lift an object vertically by increasing the distance over which the force is applied. Examples of inclined planes include ramps and staircases.
| 5. What is the function of a pulley? | |
Ans. A pulley is a simple machine that consists of a wheel with a grooved rim and a rope or cable that runs along the groove. It is used to change the direction or magnitude of a force. Pulleys are commonly used in lifting heavy objects or in systems that require the transmission of power, such as elevators and cranes.
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Dec 17, 2024 Last updated |
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