Inclined Planes

In this picture, Nam used a force of 500N to pull a fruit box of 2000N from the ground to the car. If using a longer board, which force Nam uses is more useful?

• F = 2000N

• F > 500N

• F = 500N

• F < 500N

An inclined plane, or a ramp is a slanted surfaces. It connects a lower level to a higher level.

Which picture below shows an inclined plane?

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Which inclined plane requires the most force to push the ball to the top?

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Students want to raise a large crate from the ground to a deck several feet above the ground. They know it will be easier to move the crate along an inclined plane because the inclined plane will —

• reduce the work needed to raise the crate.

• increase the force applied to the crate.

• reduce the force necessary to raise the crate.

• increase the work done on the crate.

All of the following are examples of inclined planes except

• a slope

• a seesaw

• a slide

• a screw

Robert is using an inclined plane to move a heavy box into a truck bed that is two meters off the ground. Which of the inclined planes should Robert use to get the greatest mechanical advantage?

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Which simple machine increases the distance over which a load travels and reduces the needed force?

• Pulley

• Wheel and axle

• Wedge

• Inclined plane

The diagram shows two ramps that a person could use to raise a 10-kilogram cardboard box to a height of 1 meter. Which statement correctly describes the force required to raise the box using the ramps?

• The same amount of force will be required when using either ramp because both boxes have a mass of 10 kg.

• More force will be required to raise the box using Ramp X because Ramp X is steeper than Ramp Y.

• The same amount of force will be required when using either ramp because both ramps are 1 meter high.

• More force will be required to raise the box using Ramp Y because Ramp Y is longer than Ramp X.

Examples about using the inclined planes

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An inclined plane is______________

• a complex machine

• an useless machine

• a simple machine