Electromagnetic Waves

1. SCIENCE 10
QUARTER 2: ELECTROMAGNETIC WAVES
Written Work #1
General Directions: Use this paper as your answer sheet. No need to use extra paper.
I. IDENTIFICATION.
Directions: Identify the word or group of words described by the following statements. Choose your answer from
the box below. Write your answer on the space provided before each number.
_______________1. These are waves created as a result of vibrations between an electric field and magnetic field.
_______________2. This pertains to the distance between crest to crest or trough to trough.
_______________3. It refers to the number of waves produced in one second.
_______________4. This refers to arrangement of EM waves.
_______________5. It refers to the extent or the limits between which variation is possible.
II. MULTIPLE CHOICE.
Directions: Read each question carefully. Choose the letter of the correct answer. Write your answer on the space
provided before each number.
_____1. Electromagnetic waves are produced by __________.
a. any disturbance b. currents c. vibrating charge d. voltage source
_____2. Which among the following electromagnetic waves has the shortest wavelength?
a. infrared b. x-ray c. radio wave d. microwave
_____3. Which of the following forms of electromagnetic wave has the widest wavelength range?
a. microwave b. ultraviolet c. radio wave d. x-ray
_____4. Which two color of the light lie at the beginning and end of the visible spectrum?
a. red yellow b. red and violet c. yellow and green d. yellow and violet
_____5. Which property spells the difference between infrared and ultraviolet radiation?
a. amplitude b. speed in vacuum c. wavelength d. color
_____6. Which among the following electromagnetic waves has the lowest frequency?
a. gamma ray b. infrared c. ultraviolet d. visible light
_____7. In the visible spectrum, which color has the longest wavelength?
a. blue b. red c. green d. violet
_____8. This type of electromagnetic wave has a wavelength similar to the size of PBA basketball court (28 meters).
a. microwave b. radio wave c. ultraviolet d. visible light
_____9. Which type of electromagnetic wave has wavelength similar to the size of a 1 Peso coin?
a. infrared b. microwave c. ultraviolet d. visible light
_____10. What happens to the frequency of electromagnetic wave if its wavelength increases?
a. decreases b. doubles c. increases as well d. remains the same
Performance Task #1
Directions: Arrange the electromagnetic waves in COLUMN A from LOWEST to HIGHEST WAVELENGTH. Then match
their corresponding wavelength range given in COLUMN B and objects representing their sizes in COLUMN C. Create a
chart or table to show your answer. Write your answer AT THE BACK OF THIS PAPER.
COLUMN A
(Electromagnetic Waves)
COLUMN B
(wavelength range in meters)
COLUMN C
(objects representing EM size)
Infrared 7 x 10-7
- 1 x 10-3
1 Peso coin
Visible light 1 x 10-8
- 4 x 10-7
bacteria
Radio wave 1 x 10-11
- 1 x 10-8
atomic nuclei
X-ray >1 x 10-1
atom
Ultraviolet 1 x 10-3
- 1 x 10-1
basketball court
Microwave < 1 x 10-11 tip of pin
Gamma ray 4 x 10-7
- 7 x 10-7
molecule
wavelength frequency range electromagnetic waves electromagnetic spectrum