Chapter 13 Part 2: Question Preview (ID: 29606)

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What is a machine that is made up of two or more simple machines?
a) compound machine
b) screw
c) effort machine
d) simple machine

The rate at which work is done is _______________.
a) force
b) work
c) pressure
d) power

What is a machine that does work with only one movement and changes the direction of a force?
a) compound machine
b) screw
c) effort machine
d) simple machine

What is a simple machine that is a flat, sloped/slanted surface, or ramp??
a) wedge
b) screw
c) inclined plane
d) wheel and axle

A green plant has ___________ energy.
a) electrical
b) kinetic
c) chemical
d) thermal

_____________ is an alternative resource.
a) Coal
b) Natural gas
c) Wind
d) Oil

A blimp flying around over the Super Bowl has ______________ energy.
a) kinetic and potential
b) kinetic and chemical
c) potential and radiant
d) kinetic and electrical

Most plants use a _____________ to turn a generator.
a) turbine
b) motor
c) phototvoltaic
d) engine

A photovoltaic converts ___________ energy
a) electrical to radiant
b) chemical to electrical
c) radiant to thermal
d) radiant to electrical

What is a simple machine that is an inclined plane wrapped around a cylinder post?
a) lever
b) ramp
c) screw
d) wedge

If you are standing on both feet and then stand on one foot, you have ___________ the pressure on the ground.
a) not changed
b) increased
c) decreased
d) depends on your motion

In a hydraulic system, the force exerted on the large piston is _____________ the force exerted on the small piston.
a) greater than
b) less than
c) not related to
d) the same as

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