This document contains a science test on physics for 4th grade students. It has two sections - a multiple choice section with 10 questions about mechanical waves, sound waves, and other wave properties. The second section requires students to answer essay questions about transverse and longitudinal waves, how the speed of sound varies in different mediums and temperatures, the impact of sound waves on earth, and inferences about excerpts on music and wisdom. The test was prepared by the science teacher, Sarah Jane C. Lambonao.

1. Panabo SDA Learning Center, Inc.
Purok 18, New Visayas, Panabo City
Fourth Prelim
Science 4 (PHYSICS)
Name:_________________________________________ Date:____________
GENERAL INSTRUCTION: Read and follow specific instructions. Analyze carefully each item and give the best answer.
No scratch papers! Avoid ERASURES.
Test I.A – MULTIPLE CHOICE
Direction: Read and understand each statement. Shade the best letter of your choice.
a b c d
O O O O 1. Mechanical wave is a kind of wave that is not capable of propagating energy through a _____.
a. medium b. vacuum c. water d. air
O O O O 2. The section of a longitudinal wave where the particles are crowded together is called ______.
a. rarefaction b. expansion
c. compression d. reflection
O O O O 3. It is defined in terms of wave motion as the amount of time required to complete one full cycle of the wave. It
is also the ratio of wavelength to wave speed.
a. frequency b. wavelength c. cycle d. period
O O O O 4. It is a form of energy that requires a medium for its transmission.
a. Sound b. Mechanical waves c. Light d. Electromagnetic waves
O O O O 5. Sound travels fastest through solids because _______.
a. particles in solids are quite far from each other that it could easily transfer/transmit its wave.
b. particles in solids are very compact or close to each other that it requires enough time for it to transmit.
c. particles in solids are very intact that is why it waves travel very slowly.
d. particles in solids are very intact which attributed to its capability to transmit energy to other particles easily.
O O O O 6. It refers to the distance from the midpoint to the maximum (crest) or to the minimum (trough) of a wave.
a. amplitude b. wavelength c. crest d. trough
O O O O 7. As Clessah waits for a bus in a bus stop station, an ambulance hurriedly passed by, she evidently heard the changing
pitch of the ambulance when it was yet approaching to and when it was gone away from her. Such phenomenon is
an example of _______.
a. Thermodynamics b. Threshold of hearing c. Doppler Effect d. Frequency of sound
O O O O 8. _______ is the length of one complete cycle.
a. amplitude b. wavelength c. crest d. trough
O O O O 9. The number of revolutions or cycles completed by an object in a given time.
a. amplitude b. wavelength c. frequency d. period
O O O O 10. Is defined in terms of wave motion as the amount of time required to complete one full cycle of the wave.
a. amplitude b. wavelength c. frequency d. period
For questions 11-15, each item have two statements: a and b, choose the best answer by referring to
the following choices.
A = only statement letter a is true
B = only statement letter b is true
C = both two statements are true
D = neither of the two statements are true
O O O O 11. a. The speed of sound in air is constant no matter what the speed of the source is.
b. We experience Doppler Effect phenomenon whenever there is a change in frequency of sound waves
due to the motion of sound source, the observer, or both.
O O O O 12. a. Sound travels faster in solids than in gases due to the molecular arrangement of solid materials.
b. Wave velocity only depends on the density of the medium.
O O O O 13. a. Sound is a longitudinal wave and as well as an electromagnetic wave.
b. Sound can propagate to either with or without a medium.
O O O O 14. a. Temperature is one of the factors that affects the propagation or transmission of sound waves.
b. The longer the wavelength, the lower is the frequency.
O O O O 15. a. Elvis Presley is a deaf musician.
b. Madonna was considered as the Pop Superstar Singer.
Test II. Essay
Direction: Answer all the given questions comprehensively. Don’t skip these items. Observe formality.
1. Draw and label the anatomy of:
a. Transverse wave
SCORE:
Knowledge:_____
Process:_____
Understanding:_____

2. b. Longitudinal Wave
2. Why do sound waves travel at different speeds as they travel in various mediums at various temperatures?
3. How do sound waves impact our life on Earth?
4. Infer on the following excerpt:
a. from The Music of the Heart by Andrew Pell
“Life is made up of many songs. Each song is special. Each song belongs.
Each day is orchestrated to perfection by the Divine. But there will always be one song that is uniquely mine.”
b. from Martin Luther
“Beautiful music is the art of the prophets that can calm the agitations of the soul;
it is one of the most magnificent and delightful presents God has given us.”
“If any of you lack WISDOM, let him ask of GOD, that giveth to all men liberally, and upbraideth not; and it
shall be given him.” --James 1:5
God Bless! . .
Prepared by:
Sarah Jane C. Lambonao
Science 4 Teacher