Need chemistry help when clapping your hands

nylffnz611
timer Asked: Feb 5th, 2016

Question Description

1.  Why does clapping your hands produce a sound? a.  It rapidly compresses the air between your hands and forms a sound wave. b.  It releases many small skin particles into the air and forms a sound wave. c.  It creates friction between your hands and forms a sound wave. d.  It compresses the skin molecules and forms a sound wave. 2.  If you shine a light past a wall and into a room, what will diffraction cause the light to do?  a.  Illuminate an area that is the same size as the original light beam b.  Spread out the light and illuminate a larger area than the original beam c.  Split the light to illuminate two areas equal in volume to the original beam d.  Concentrate the light to illuminate a smaller area than the original 3.  What is a common application of ultraviolet light? a.  heat lamps b.  night vision c.  heat detectors d.  cooking food 4.  Which statement correctly explains mechanical advantage? a.  It is the factor by which a machine shortens the length of time needed to do a certain job. b.  It is the number of times a machine multiplies the effort force put into the machine. c.  It is the distance over which a machine can move an object in one minute, at a set speed. d.  It is the amount of force needed by a machine to double the efficiency of the machine. 5.  How does knocking on a door produce a sound? a.  The knock compresses the air between the person's hand and the wood. b.  The knock compresses the particles of wood and releases sound energy. c.  The knock changes the potential energy of the door into sound energy. The knock causes the door to vibrate, which then causes the air to vibrate.

User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.

This question has not been answered.

Create a free account to get help with this and any other question!

Related Tags

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors