ELECTROMAGNETIC WAVES

Question 1

PRE - TEST
1. How are electromagnetic waves produced?
A. Any disturbance
C. Vibrating charge
B. Currents
D. Voltage source

Question 2

PRE-TEST
2. In the electromagnetic wave, what is the direction of the propagation of the wave?
A. Always to the right
B. Cannot be determined
C. Parallel to electric and magnetic field directions
D. Perpendicular to the electric and magnetic field directions

Question 3

PRE-TEST
3. Which of the following forms of electromagnetic waves has the widest frequency range?
A. Microwave C. Ultraviolet
B. Radio waves D. X-ray

Question 4

PRE-TEST
4. What happens to the frequency of the electromagnetic wave if its wavelength
increases?
A. It decreases.
C. It remains the same.
B. It increases as well.
D. None of the above.

Question 5

PRE-TEST
5. What is the speed of the electromagnetic wave in a vacuum?
A. Zero
B. Always the same as the speed of light
C. Changing depending on the value of its wavelength
D. none of the above

Question 6

PRE-TEST
6. Who contributed in developing equations that showed the relationship of electricity and magnetism?
A. André-Marie Ampere
C. James Clerk Maxwell
B. Heinrich Hertz
D. Michael Faraday

Question 7

PRE-TEST
7. Who showed the experimental evidence of electromagnetic waves and their link to light?
A. André-Marie Ampere
C. James Clerk Maxwell
B. Heinrich Hertz
D. Michael Faraday

Question 8

PRE-TEST
8. Which type of wave has the shortest wavelength?
A. Gamma ray C. Ultraviolet
B. Microwave D. X-ray

Question 9

PRE-TEST
9. What is the other term for electromagnetic waves?
A. Electric waves
C. Mechanical waves
B. Longitudinal waves
D. Transverse waves

Question 10

PRE-TEST
10. All EM waves have the same speed.
A. True B. False

Question 11

PRE-TEST
11. Which of the following correctly lists electromagnetic waves in the order from
the longest to the shortest wavelength?
A. Gamma rays, ultraviolet, infrared, microwaves
B. Microwaves, ultraviolet, visible light, gamma rays
C. Radio waves, infrared, gamma rays, ultraviolet
D. Radio waves, infrared, visible light, X-rays

Question 12

PRE-TEST
12. How is the wavelength of infrared differs from the wavelength of ultraviolet
waves?
A. Longer
C. The same
B. Shorter
D. None of the above

Question 13

PRE-TEST
13. What is the main difference between a radio wave and a light wave?
A. Speed
C. Both A and B
B. Wavelength
D. None of the above

Question 14

PRE-TEST
14. Which of the following is NOT an electromagnetic wave?
A. Infrared C. Sound
B. Light D. Radio

Question 15

PRE-TEST
15. What is the frequency range of UV radiation?
A. 3.5x10^9 – 3x10^11 Hz
C. 7.5x10^14 – 3x10^16 Hz
B. 3.5x10^11 – 4x10^14 Hz
D. 7.5x10^16 – 3x10^19 Hz

Question 16

ACTIVITY 1: SCRAMBLED WORDS
1. A moving charge creates _____________.
A. ME
B. PEEDS
C. OESTCJB
D. WARDOUT
E. CTNGMAEI LDFIE
F. EEILCTRC IEDFL

Question 17

ACTIVITY 1: SCRAMBLED WORDS
2. A changing magnetic field causes a changing
___________
A. ME
B. PEEDS
C. OESTCJB
D. WARDOUT
E. CTNGMAEI LDFIE
F. EEILCTRC IEDFL

Question 18

ACTIVITY 1: SCRAMBLED WORDS
3. The successive production of electric and magnetic fields results to the creation of
________ wave.
A. ME
B. PEEDS
C. OESTCJB
D. WARDOUT
E. CTNGMAEI LDFIE
F. EEILCTRC IEDFL

Question 19

ACTIVITY 1: SCRAMBLED WORDS
4. An EM wave propagates _____________ from the source.
A. ME
B. PEEDS
C. OESTCJB
D. WARDOUT
E. CTNGMAEI LDFIE
F. EEILCTRC IEDFL

Question 20

ACTIVITY 1: SCRAMBLED WORDS
5. Electromagnetic waves do not need ____________ to transfer energy.
A. ME
B. PEEDS
C. OESTCJB
D. WARDOUT
E. CTNGMAEI LDFIE
F. EEILCTRC IEDFL

Question 21

ACTIVITY 2: TRUE OR FALSE
1. Most EM waves have the same speed.

Question 22

ACTIVITY 2: TRUE OR FALSE
2. EM waves travel at the speed of 4x108 m/s.

Question 23

ACTIVITY 2: TRUE OR FALSE
3. Electromagnetic waves are transverse waves consisting of changing electric fields and changing magnetic fields.

Question 24

ACTIVITY 2: TRUE OR FALSE
4. Electromagnetic waves transfer energy through a vacuum.

Question 25

ACTIVITY 2: TRUE OR FALSE
5. A wave is a disturbance that transfers energy

Question 26

ACTIVITY 3: SCIENTISTS AND THEIR CONRTIBUTIONS
________1. André-Marie Ampere
A. Contributed in developing equations that showed the relationship of electricity and magnetism
B. Showed experimental evidence of electromagnetic waves and their link to light
C. Demonstrated the magnetic effect based on the direction of a current
D. Formulated the principle behind electromagnetic induction
E. Showed how a current-carrying wire behaves like a magnet

Question 27

ACTIVITY 3: SCIENTISTS AND THEIR CONTRIBUTION
________2. Michael Faraday
A. Contributed in developing equations that showed the relationship of electricity and magnetism
B. Showed experimental evidence of electromagnetic waves and their link to light
C. Demonstrated the magnetic effect based on the direction of a current
D. Formulated the principle behind electromagnetic induction
E. Showed how a current-carrying wire behaves like a magnet

Question 28

ACTIVITY 3: SCIENTISTS AND THEIR CONTRIBUTIONS
________3. Heinrich Hertz
A. Contributed in developing equations that showed the relationship of electricity and magnetism
B. Showed experimental evidence of electromagnetic waves and their link to light
C. Demonstrated the magnetic effect based on the direction of a current
D. Formulated the principle behind electromagnetic induction
E. Showed how a current-carrying wire behaves like a magnet

Question 29

ACTIVITY 3: SCIENTISTS AND THEIR CONTRIBUTIONS
________4. James Clerk Maxwell
A. Contributed in developing equations that showed the relationship of electricity and magnetism
B. Showed experimental evidence of electromagnetic waves and their link to light
C. Demonstrated the magnetic effect based on the direction of a current
D. Formulated the principle behind electromagnetic induction
E. Showed how a current-carrying wire behaves like a magnet

Question 30

ACTIVITY 3: SCIENTISTS AND THEIR CONTRIBUTIONS
________5. Hans Christian Oersted
A. Contributed in developing equations that showed the relationship of electricity and magnetism
B. Showed experimental evidence of electromagnetic waves and their link to light
C. Demonstrated the magnetic effect based on the direction of a current
D. Formulated the principle behind electromagnetic induction
E. Showed how a current-carrying wire behaves like a magnet

Question 31

ACTIVITY 4
1. Which EM wave has the highest frequency than others?
A. Microwaves
C. UV radiation
B. Radio waves
D. Visible light

Question 32

ACTIVITY 4
2. What is the frequency range of UV radiation?
A. 3.5x10^9 – 3x10^11 Hz
C. 7.5x10^14 – 3x10^16 Hz
B. 3.5x10^11 – 4x10^14 Hz
D. 7.5x10^16 – 3x10^19 Hz

Question 33

ACTIVITY 4
3. Radio wave is _________ in wavelength than the gamma ray.
A. Higher C. Lower
B. Longer D. Smaller

Question 34

ACTIVTIY 4
4. Which EM wave has the highest frequency among the others?
A. Microwaves C. UV radiation
B. Radio waves D. Visible light

Question 35

ACTIVITY 4
5. What is the wavelength of a wave with a frequency of 3x10^9 Hz?
A. 1.0x10-¹ m C. 1.0x10² m
B. 1.0x10-² m D. 3.5x10¹ m

Question 36

POST TEST
1. What is the speed of the electromagnetic wave in a vacuum?
A. Zero
B. Always the same as the speed of light
C. Changing depending on the value of its wavelength
D. None of the above

Question 37

POST TEST
2. How are electromagnetic waves produced?
A. Any disturbance
C. Vibrating charge
B. Currents
D. Voltage source

Question 38

POST TEST
3. What happens to the frequency of the electromagnetic wave if its wavelength increases?
A. It decreases.
C. It remains the same.
B. It increases as well.
D. None of the above.

Question 39

POST TEST
4. In the electromagnetic wave, what is the direction of the propagation of the
wave?
A. Always to the right
B. Cannot be determined
C. Parallel to electric and magnetic field directions
D. Perpendicular to the electric and magnetic field directions

Question 40

POST TEST
5. Which of the following forms of electromagnetic waves has the widest frequency range?
A. X-ray
C. Ultraviolet
B. Microwave
D. Radio waves

Question 41

POST TEST
6. Who contributed in developing equations that showed the relationship of electricity and magnetism?
A. André-Marie Ampere
C. James Clerk Maxwell
B. Heinrich Hertz
D. Michael Faraday

Question 42

POST TEST
7. Who showed experimental evidence of electromagnetic waves and their link to light?
A. André-Marie Ampere
C. James Clerk Maxwell
B. Heinrich Hertz
D. Michael Faraday

Question 43

POST TEST
8. Which type of wave has the shortest wavelength?
A. Gamma ray C. Ultraviolet
B. Microwave D. X-ray

Answer 43

A. Gamma ray

Question 44

POST TEST
9. What is the other term for electromagnetic waves?
A. Electric waves
C. Mechanical waves
B. Longitudinal waves
D. Transverse waves

Question 45

POST TEST
10. Which of the following correctly lists electromagnetic waves in the order from the longest to the shortest wavelength?
A. Gamma rays, ultraviolet, infrared, microwaves
B. Microwaves, ultraviolet, visible light, gamma rays
C. Radio waves, infrared, gamma rays, ultraviolet
D. Radio waves, infrared, visible light, X-rays

Question 46

POST TEST
11. How is the wavelength of infrared differs from the wavelength of ultraviolet waves?
A. Longer
C. The same
B. Shorter
D. None of the above

Question 47

POST TEST
12. All EM waves have the same speed.
A. True B. False

Question 48

POST TEST
13. What is the main difference between a radio wave and a light wave?
A. Speed
C. Both A and B
B. Wavelength
D. None of the above

Question 49

POST TEST
14. Which of the following is NOT an electromagnetic wave?
A. Infrared C. Sound
B. Light D. Radio

Question 50

POST TEST
15. What is the frequency range of UV radiation?
A. 3.5x10^9 – 3x10^11 Hz
C. 7.5x10^14 – 3x10^16 Hz
B. 3.5x10^11 – 4x10^14 Hz
D. 7.5x10^16 – 3x10^19 Hz