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Identify the kind of simple machine represented by each of these examples: a. qquad a drill bit b. qquad a skateboard ramp c. qquad a boat oar

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Answer

a. Drill bit - Wedgeb. Skateboard ramp - Inclined Planec. Boat oar - Lever

Explanation

To identify the type of simple machine each example represents, we need to understand the basic principles of the six simple machines: lever, wheel and axle, inclined plane, pulley, wedge, and screw.a. A drill bit is a tool that typically has a cutting edge that comes to a point, which is used to bore holes in various materials. The drill bit itself is not a simple machine, but the drill as a whole can be considered a combination of simple machines. The drill bit's cutting edge is similar to a wedge, which is a simple machine that splits or cuts through materials by concentrating force on a small area.b. A skateboard ramp is an inclined plane. An inclined plane is a flat surface that is higher on one end than the other, which allows for the movement of objects upwards with less effort than lifting them vertically.c. A boat oar is a lever. A lever is a rigid bar that pivots around a fixed point, known as the fulcrum. The oar's handle acts as the lever arm, and the point where the oar meets the boat is the fulcrum. Force is applied at one end of the oar (the hand), and the oar moves through water to propel the boat forward.

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