Q:

How do simple machines make work easier?

A:

Quick Answer

Simple machines allow people to make tradeoffs that reduce the amount of work necessary to perform a task. Simple machines may convert one type of force to another, change the direction of an applied force or trade distance travelled for force applied.

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For example, people can use inclined planes to lift a heavy load more easily. Rather than lifting a heavy box straight up from the ground, an inclined plane allows the person to raise the load gradually. The trade off in this example is that the load must be moved a greater distance than if it were lifted straight up.

As another example, a pulley changes the direction of applied force. For example, it may be difficult to push a heavy load up a hill, while pulling it is relatively easy. By attaching the load to a rope, running the rope through the pulley and back down to the operator, the load can be pulled up more easily than it could be pushed up.

Levers work by allowing the user to trade the distance travelled for increased force. For example, a high jumper may only be able to leap a few feet off the ground, but a pole vaulter, who uses the pole like a lever, can travel many times higher with no more force applied.

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Related Questions

  • Q:

    What are some types of simple machines?

    A:

    The six types of simple machines are the pulley, the lever, the wedge, the wheel and axle, the inclined plane and the screw. Simple machines are designed to make work easier.

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  • Q:

    What are six types of simple machines?

    A:

    The six simple machines are the wheel and axle, lever, pulley, wedge, inclined plane and screw. Simple machines provide a mechanical advantage. This means less force is required to perform work on an object, and the force is exerted over a longer distance, according to TeachEngineering.

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  • Q:

    What are some examples of six simple machines?

    A:

    Examples of six simple machines include windmills, slides, chisels, drills, blinds and seesaws. A windmill is a wheel and axle, slides are inclined planes, a chisel is a wedge, a drill is a screw, blinds are pulleys and a seesaw is a lever. Simple machines allow humans and animals to do work more easily by lessening the amount of force needed to move objects.

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  • Q:

    What are seven simple machines?

    A:

    The seven simple machines are the inclined plane, wedge, screw, lever, pulley, gear and wheel and axis. The simple machines are non-powered mechanical devices that change the direction or magnitude of a force. Each of these machines is considered to be a simple machine. However, when combined, they are considered a complex machine.

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