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Grade 5

Simple machines and work

Learn how tools such as levers, pulleys, wheels, and inclined planes make work easier.

വിഭാഗം: World Around Us 11 min Advanced
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Simple machines do not remove work completely, but they help change force or direction so tasks can feel easier or safer.

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A seesaw is an example of a lever.

machine example

A lever turns around a fixed point called a fulcrum.

Example: Levers help lift or move loads.

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A ramp is an inclined plane that helps move objects upward more gradually.

machine example

The slope reduces how hard the lift feels.

Example: Inclined planes make lifting easier over distance.

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A pulley can help lift a bucket from a well by changing the direction of the pull.

machine example

The rope moves in a helpful direction around the wheel.

Example: Pulleys can make lifting more manageable.

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Science habit: When you study a tool, ask what force is being changed and how that helps the task.

thinking step

Understanding function matters more than memorizing names alone.

Example: Simple machines help by changing force or direction.

More in this topic

Keep the reading rhythm going with another tiny lesson.

Grade 5

Matter and change

Observe how materials can change by heating, cooling, mixing, or dissolving, and notice which changes can reverse.