Q2-SCIENCE 10-ACTIVITY SHEET
Name: ___________________________ Section: _________
Activity 1.
Directions: Pick out the word that will make the statements
correct. Underline your answers.
The electromagnetic spectrum is the arrangement of 1.
(electromagnetic waves, ultraviolet radiation), which are
waves that are created with changing electric field and 2.
(electric charge, magnetic field). EM waves travel on 3. (air,
vacuum) at a constant speed of 4. (3 x108 m/s, 8 x103 m/s).
The electromagnetic spectrum is arranged in a manner of 5.
(decreasing, increasing) wavelength, 6. (decreasing,
increasing) frequency and 7. (decreasing, increasing)
energy. 8. (Gamma ray, Radio wave) has the longest
wavelength, lowest frequency and lowest energy among all EM
waves. The 9. (radio wave, visible light) is the only EM wave
that can be seen by our naked eye, whereas 10. (red, violet)
has the longest wavelength and 11. (red, violet) has the
greatest frequency. On the other hand, 12. (gamma ray, radio
wave) has the shortest wavelength and highest frequency;
which carries the highest 13. (energy, wavelength) among all
EM waves. Therefore 14. (gamma ray, radio wave) has the
lowest ionizing radiation, while 15. (gamma ray, radio wave)
has the highest ionizing radiation.
Activity 2.
Directions: Look at the picture below, write the name of the
correct Electromagnetic wave corresponding to the letters on
the picture. You may refer your answer for numbers 1-7 from the
box.
Security markings
Fluorescence
Airport security scanner
Night vision goggles
Artificial Lights
Radio/Television signals
radiotherapy
Thermal imaging through
infrared scanners
Sterilization of water in
drinking fountains
Terrestrial communication
Diagnosing bone fractures
RADIO WAVES
1.
2.
3.
MICROWAVES
1.
2.
3.
4.
INFRARED
1.
2.
3.
VISIBLE LIGHT
1.
2.
ULTRAVIOLET
1.
2.
3.
X-RAY
1.
2.
GAMMA RAYS
1.
Activity 4.
Directions: Identify the following applications of EM Wave.
Choose their names found from Activity 3.
1. A ______________________
2. B ______________________
3. C ______________________
4. D ______________________
5. E ______________________
6. F ______________________
7. G ______________________
8. What letter shows the lowest frequency? _____
9. What letter shows the shortest wavelength? ____
10. What letter shows the EM wave with the highest
energy?____
Activity 3.
Directions: Classify the following applications in the box
according to its type of Wave.
Magnetic
Resonance RADAR (Radio Detection
Imaging (MRI)
and Ranging)
Satellite communication
Optical fibers
Cooking
Global Positioning System
(GPS)
Remote control (IR remote) Airport security scanner
1.
__________________________
2.
___________________________
3.
____________________
4.
________________________
5.
_____________________