This document contains a science test on waves for a 2nd level prep school class. The test has three parts. Part I contains 7 multiple choice questions about wave properties. Part II has students match wave concepts to definitions and identify extra definitions. Part III requires calculating wavelength, amplitude, and velocity from a diagram of a water wave. The test has a total of 20 points and is to be completed in 30 minutes. An answer key is provided.

1. El-Beharia Governorate Director education: Koum Hammada
School: Manshat Rady prep Level: 2
Subject: science Unit one: waves
March test Duration: 30 minutes
Total Score: 20 points
Do not write on this paper, please, write your answer on the answer sheet provided.
Part I: Choosethe correct answer (a), (b), (c), (d) Write your answer on your answer
sheet.(7 points: one point for each item).
1. A vibration through a material that carries energy but not matter is observed as
a. Matter
b. Wave
c. Medium
d. Energy
2. The material that a wave travels through is often referred to as the
a. Wave
b. Medium
c. Energy
d.Vibration
3. Waves that produced on a guitar string by plucking it are
a. sound waves.
b. longitudinal waves
c. transverse waves
d. electromagnetic waves
4. In a sound wave,
a. The particles vibrate parallel to the direction of the wave motion.
b. The particles vibrate perpendicular to the direction of the wave motion.
c. Energy causes the particles to move forward with the wave.
d. Energy propagated by crests and troughs.
5. In a rope wave,
a. The particles vibrate parallel to the direction of the wave motion.
b. The particles vibrate perpendicular to the direction of the wave motion.
c. Energy causes the particles to move forward with the wave.
d.Energy propagated by compressions and rarefactions.
6. Sound travels fastest in…
a) a vacuum
b) the sea

2. c) the atmosphere
d) a broomstick
7. Another name for the unit hertz is
a) cycles per second
b) seconds percycle
c) meters per second
d) cycles per meters
Part II :( 8 points)
i. Match each conceptin Column A to the best definition in Column B. Don’t use any
item more than once. You have two extra definitions in Column B.(6 points)
A B
1. refraction
2. Frequency
3. Trough
4. reflection
5. Amplitude
6. diffraction
A. The bending of waves around an object
B. where the particles are spread apart
C. Happens when a wave enters a medium and
its speed changes
D. Happens when waves bounce off a surface
E. How far the medium moves from rest
position
F. The distance between one point on a wave
and the exact same place on the next wave
G. How many waves go past a point in one
second
H. The lowest point of the wave
ii. What is the conceptof the extra definitions? (2 points)
Part III :( 5points)
The diagram shows a water wave drawn to scale.
1. What is the wavelength of this wave?(1point)
2. What is the amplitude?( 1 point)
3. What is the velocity of this wave? Show clearly how you work out your answer and
give the unit. ( 3points)
END OF TEST

3. The Answer Key
Part I:
1 2 3 4 5 6 7
b b c a b d a
Part II :( 8 points)
i. : one point eachterm
1 2 3 4 5 6
C G H D E A
ii. :( 2 points)
B______Rarefaction
F______Wavelength
Part III :( 5 points)
1. 13.33 cm(one point)
2. 2m (one point)
3. V = λ/T ( one point for law)
From the figure T= 8sec (one point for finding T)
V= 13.33/8=1.67cm/sec (one point for unit)