1. Waves Comprehension Check
1. Name of Wave
8. Definition of Wave (medium compared to energy transfer)
9. Name of Wave
13. Another Name for the Wave
14. Definition of Wave (medium compared to energy transfer)
# 4 is a BONUS

2. Warm-UP Exercise 3/15/12 B D A C
Draw the wave &Identify the parts labeled A – D below B D A C

3. Springy Waves Lab- INB pg. 24
Your table will be given coiled springs.
At separate times, hold the coiled spring on the floor or on a cleaned table between you a classmate so that the spring is straight. This is the rest position.
Move one end of the spring back and forth at a constant rate. Note the wavelength of the wave you create.
Copy and answer the following questions in your science journal.
A. Increase the amplitude of the waves. What did you have to do? How did the change in amplitude affect the wavelength? Model this for both transverse and longitudinal waves.
B. Now shake the springs back and forth about twice as fast as you did before. What happens to the wavelength? Record your observations.

4. Review: Mechanical Waves
Cause rhythmic disturbances in a medium
Travel through a medium
Transmit energy

5. Compare Transverse and Compressional Waves Copy & complete
Characteristic
Transverse Wave
Compressional Wave
Wave Shape
Wave Cycle
Medium travel compared to energy transfer
Wavelength
Amplitude
Frequency

6. Characteristics of a Compressional or Longitudinal Wave
Compression – crowded or dense area
Rarefaction – less dense or spread out area

7. Characteristics of a Compressional or Longitudinal Wave
Wave Cycle – one compression and one rarefaction

8. Characteristics of a Compressional or Longitudinal Wave
Wavelength – distance between two compressions

9. Characteristics of a Compressional or Longitudinal Wave
Amplitude – measure of the amount of compression; depends on the amount of energy being transferred

10. Characteristics of a Compressional or Longitudinal Wave
Frequency – number of compressions that pass a stationary point in one second

12. Compare Transverse and Compressional Waves Copy & complete with your partner
Characteristic
Transverse Wave
Compressional Wave
Wave Shape
Wave Cycle
Medium travel compared to energy transfer
Wavelength
Amplitude
Frequency

13. Transverse and Compressional Waves
Characteristic
Transverse Wave
Compressional Wave
Wave Shape
Wave Cycle
Same as frequency
1 Rarefaction/1 Compression
Medium travel compared to energy transfer
Perpendicular
(right angles)
Same Direction
Wavelength
Distance from one point on wave to same point on next wave (crest to crest)
Distance between compressions
Amplitude
Distance from crest/trough to rest position
Amount (thickness) of compression
Frequency
# of crests that pass per second
# of compressions that pass per second

15. Complete the
Mechanical Wave
Graphic Organizer

19. "Just Checking In" Review
Working with your seat partner on one sheet of paper answer the following questions for bonus points………..

20. "Just Checking In" Review
What do waves transfer?

21. "Just Checking In" Review
Name two mechanical waves.

22. "Just Checking In" Review
Waves that do require a medium are called _____

23. Warm-up Activity 2/19/09
Draw a Venn Diagram to compare and contrast transverse waves and compressional (or longitudinal) waves?

24. "Just Checking In" Review
The crest and trough of a transverse wave to compare to which two features of a compressional wave?

25. "Just Checking In" Review
What symbols are used represent wavelength and frequency?

26. "Just Checking In" Review
What are the units used to measure frequency and the speed of a wave?