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A pendulum is an example of simple harmonic motion. The picture shows a pendulum that swings with consistent timing. The pendulum conserves its energy and follows a consistent repeating past as forces shift.

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A weed-whacker is an example of circular motion. The picture shows a weed-whacker spinning a string in order to cut grass. The motor spins the string in a circular motion, which causes the ends to speed up even faster.

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A speaker produces sound. The picture shows a speaker being used to create sound. Waves of different intensity are created by the membrane, which then travel to one's ear.

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Throwing a ball is an example of projectile motion. The picture shows someone throwing a ball through the air. It demonstrates how vertical and horizontal forces will propel an object.

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Driving is a real life example of friction. The picture shows a car accelerating. The force holding the tires to the ground make it so that the wheel needs to roll forward in order to spin.

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Bridges make use of tension in real life. The picture shows a bridge that uses cables to hold the tread up. The force pulling the cable is used as a normal force on the treads.

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A ratchet uses torque in real life. The picture shows a ratchet being used to tighten a bolt. The ratchet uses force to turn a bolt around its axis.

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Glasses use optics in real life. The picture shows glasses that are used to focus an image. The lenses bend light to focus them for the user.

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Ripples in a lake are a form of waves. This picture shows waves in a lake caused by vibrations. Wavelength, intensity, and frequency can all be seen.