Technology Interactions © 2007

Chapter 6: Applied Physics

Self-Check Quiz

1.
The term for a change of position in a certain period of time is
A)mechanical advantage.
B)work.
C)inertia.
D)motion.
2.
Gravity is one particular kind of
A)motion.
B)force.
C)inertia.
D)work.
3.
What kind of force opposes motion and eventually brings most moving bodies to rest?
A)strong attraction
B)friction
C)mass
D)inertia
4.
According to applied physics, work can happen only after
A)molecules have been split or combined.
B)a medium is heated to the critical temperature.
C)a force has been applied.
D)a mechanical advantage has been gained.
5.
Any true machine
A)contains an energy source.
B)helps people do work.
C)consists of wedges.
D)requires complex engineering to build.
6.
The scientific measure of work done is the joule, or
A)Newton-meter.
B)Newton-kilogram.
C)Newton.
D)Newton-pound-foot.
7.
Which item describes a type of wave?
A)succession of vibrations in sound
B)frozen surface of a pond
C)a photon
D)red blood cells surging through an artery
8.
Which type of wave motion does not travel through space?
A)radio waves
B)sound waves
C)light waves
D)microwaves
9.
If there is no barrier in the way of sound waves, you will not hear
A)loud sounds.
B)low-pitched sounds.
C)ultrasound.
D)an echo.
10.
In the scientific method, the first step is to
A)share the information.
B)perform the experiment.
C)state the problem.
D)take a user survey to identify needs.
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