5 Written Questions

1. The less dense region of a compressional wave
2. The product of the mass of an object and its velocity
3. A measure of the average kinetic energy of the particles in a material
4. A push or pull that one body exerts on another
5. Occurs when an object changes its speed or direction or both.

5 Matching Questions

1. Doppler Effect
2. Hydroelectric
3. Optical Axis
4. Speed
5. Parallel Circuit

1. a The distance an object travels per unit of time
2. b Electrical energy produced from the energy of moving water
3. c Imaginary line drawn perpendicular to surface of a mirror or lens at its center
4. d A type of circuit that has more than one branch for the current to flow
5. e Change in pitch or wave frequency due to a moving wave source.

5 Multiple Choice Questions

1. Can be used to increase or decrease voltage in an AC.
   1. Power
   2. Force
   3. Heat Mover
   4. Transformer
2. Device that uses an electromagnet to measure electric current
   1. Heat Mover
   2. Galvanometer
   3. Real Image
   4. Transverse
3. Examples include organic matter such as wood and rice hulls
   1. Sonar
   2. Pigment
   3. Biomass
   4. Gamma
4. Distance from center of lens or mirror to the point of focus.
   1. Force
   2. Focal Length
   3. Real Image
   4. Solar Energy
5. Reflects an image that is virtual, upright, and smaller than the object
   1. Sonar
   2. Convex Mirror
   3. Conduction
   4. Closed Circuit

5 True/False Questions

1. Infrared → Type of energy used to produce thermograms

   True        False

2. Resonator → Uses reflected underwater sound waves to detect objects

   True        False

3. Series Circuit → A circuit with only one path

   True        False

4. Electrical Circuit → Produced by the flow of electrons through a material

   True        False

5. Pigment → Colored material that absorbs some colors and reflects others

   True        False