Chapter 11: Work And Machines: Glencoe Science: An Introduction To The Life, Earth, And Physical Sciences Question Preview (ID: 28601)


Chapter 11: Work And Machines: Glencoe Science: An Introduction To The Life, Earth, And Physical Sciences. TEACHERS: click here for quick copy question ID numbers.

A bar or rod free to rotate around a single point
a) simple machines
b) lever
c) wedge
d) screw

any devices that do work with one movement (such as pulley, inclined plane, lever)
a) simple machines
b) lever
c) wedge
d) screw

two inclined planes combined
a) simple machines
b) lever
c) wedge
d) screw

an inclined plane wrapped around a rod
a) simple machines
b) level
c) wedge
d) screw

exerting a force over a distance in the same direction as the object's motion
a) simple machine
b) compound machine
c) work
d) wheel and axle

The ___ is the unit used for work.
a) joule
b) newton
c) pound
d) meter

A ___ is a compound machine.
a) screw
b) fishing rod and reel
c) ramp
d) wheel and axle

An example of an inclined plane is a(n) ___.
a) mountain climber
b) elevator
c) seesaw
d) moving van ramp

A ___ uses a lever.
a) vise
b) stairway
c) seesaw
d) moving van ramp

___ is not work.
a) Carrying a canoe on level ground.
b) Lifting a canoe
c) Carrying a canoe uphill
d) Paddling a canoe across a lake

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