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.[print questions]

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

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

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

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

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

two inclined planes combined
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

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

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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