Set: St. Gerard Midterm 7th Grade

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All 29 Terms

Term Definition
wave regular disturbances that carry energy through matter or space without carrying matter
mechanical wave waves that require matter to carry energy
science the process of trying to understand the world
technology the use of knowledge gained through science to make products or tools people can use
archaeology a branch of science that studies the tools and other cultural remains of humans
scientific method step-by-step procedures of scientific problem solving
observation information gathered with senses
inference a conclusion about an observation
hypothesis a statement that can be tested
independent variable the one factor that can change in an experiment
dependent variable a factor being measured in an experiment
control a standard used for comparison.
constant factor in an experiment that stays the same.
estimation making a rough measurement of a object or problem by making an educated guess
SI the general system of scientific measurement
electromagnetic wave waves that do not require matter to carry energy
transverse wave a wave in which matter moves back and forth at right angles to the direction the wave travels
compressional wave a wave in which matter moves forward and backward in the same direction the wave travels
amplitude measure of the energy a wave carries; one-half the distance between a crest and trough of a transverse wave.
crest highest point of a wave
concave lens lens whose edges are thicker than its middle; causes light waves to diverge
convex lens lens whose center is thicker than its edges; causes light waves to converge
focal point single point on the optical axis of a mirror or lens
frequency number of waves that pass a given point in one second; measured in waves per second, or hertz
interference ability of two or more waves to combine and form a new wave when they overlap
medium material in which a light wave travels
refraction bending of a light wave when it changes speed in moving from one material to another.
reflection occurs when a wave strikes an object or surface and bounces off.
wavelength the distance between a point on one wave and an identical point on the next wave, measured from crest to crest, or trough to trough.

Set Information

Terms 29
Creator sense329
Created January 6, 2008
Group St. Gerard 7th Grade 2007-2008
Tags st, midterm, grade, gerard, 7th
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Roxas : Hi everyone It's Mike ....... hi
Roxas : me again .... How come no one elsl is on.... WE HAVE A QUIZ TOMMOROW!
Roxas : COME ON STILL NO ONE CAME ON!..... HI
sense329 : they are a bunch of non-studiers!
Roxas : Don't count me as one of them because I'm studying my butt off
allison_cg95 : wow i finally went online...happy Mike?? LOL
Roxas : at least 1 peraon did
Last Message: 5 months ago

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Most Missed Words

  1. mechanical wave → waves that require matter to carry energy - 6 misses
  2. control → a standard used for comparison. - 6 misses
  3. wave → regular disturbances that carry energy through matter or space without carrying matter - 5 misses
  4. dependent variable → a factor being measured in an experiment - 5 misses
  5. amplitude → measure of the energy a wave carries; one-half the distance between a crest and trough of a transverse wave. - 5 misses
  6. electromagnetic wave → waves that do not require matter to carry energy - 4 misses
  7. inference → a conclusion about an observation - 3 misses