INCLINED PLANE, WEDGE, and SCREW

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Using the information in the image above, complete these calculations. The AMA = The IMA = The efficiency =

2 2.5 80

wedge

A double inclined plane.

inclined plane

A ramp or a slope.

screw

An inclined plane wrapped around a cylinder

A screw is simply a form of a wedge.

False

internal

On the inside.

external

On the outside

The screw has very low efficiency.

True

1. on the outside

external

A major factor in the use of the inclined plane is

friction

The efficiency of the wedge is low because of

friction

A steep slope requires___________ force over a_____________distance.

greater shorter

4. a ramp or a slope

inclined plane

An inclined plane reduces the____________ needed to move a load vertically.

input force

2. on the inside

internal

The item in Figure 18 which uses an internal inclined plane is the _____.

nut

Which one of the following is not an example of the wedge?

saw

5. an inclined plane wrapped around a cylinder

screw

An inclined plane wrapped around a cylinder makes a machine called a

screw

To increase IMA, decrease the_________ of the ramp.

slope

A gentle slope requires___________force over a__________ distance.

smaller greater

The mechanical advantage of the wedge increases as it gets _____.

thinner

3. a double inclined plane

wedge


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