Waves Study Guide

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Name: _ANSWER KEY_

Date: _(2012-2013)_

Date of Science Exam: __________

Period: _______

Science 8 - Semester One - Final Exam Study Guide (2012-2013)
Safety and Tools 1. A fire blanket puts out a fire on a _person_, while a fire extinguisher puts out a flame on an_object_. 2. What tool should be used to accurately measure the volume of a liquid? _graduated cylinder_ 3. What tool should be used to handle hot materials in a classroom? _oven mitts_ The Metric System Complete the following ladder below and use it to answer the following conversion questions. kilo1000 hecto100

 deka10 deci0.1 centi0.01 milli0.001

2.4 km = _240,000_ cm 300 mL = _0.3_ L 1250 g = _125,000_ cg

 

4. Name the basic SI unit of measurement for each of the following:  Volume is measured in _Liter_   Mass is measured in _gram_ 

Length is measured in _meter_ Temperature is measured in _Celcius_

States of Matter 5. Draw a picture for the arrangement of molecules for each of the three states of matter.

6. 7. 8. 9.

Solid Liquid A solid has a _definite_ shape and _definite_ volume. A liquid takes the _shape_ of its container and has a _definite_ volume. A gas _fills_ its container and has _in-_ definite volume. True / False. The particles of matter are always in constant motion, even when it is really cold.

Gas

Waves 10. Waves transfer _energy_ from place to place, and it spreads _out evenly_ from the source. 11. What is a mechanical wave? _A wave that requires a medium to travel through._ Example of a mechanical wave? _Sound_ An example of a non-mechanical wave (electromagnetic)? _Light_ 12. Label the following parts on a longitudinal wave: Compression a. Compression b. Rarefaction 13. In a longitudinal wave, the particles move Rarefaction parallel / perpendicular to the direction which the energy moves. 14. A longitudinal wave’s wavelength can be found in two different ways. What are they? a. _compression_ to _compression_ b. _rarefaction_ to

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