INCLINED PLANE, WEDGE, and SCREW
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