Explain kinetic and gravitational potential energy, rules for conservation of energy and relationship between these quantities as well as apply the knowledge gained for useful purposes.
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Q 1/20
Score 0
What is the primary difference between mechanical waves and electromagnetic waves?
30
Electromagnetic waves have longer wavelengths
Mechanical waves require a medium to travel
Mechanical waves have higher frequencies
Electromagnetic waves require a medium to travel
Q 2/20
Score 0
Which of the following best describes the amplitude of a wave?
30
The number of cycles per second
The time taken for one complete cycle
The distance between two crests
The maximum displacement from the rest position
20 questions
Q.
What is the primary difference between mechanical waves and electromagnetic waves?
1
30 sec
SC9.E.1
Q.
Which of the following best describes the amplitude of a wave?
2
30 sec
Q.
If a wave has a frequency of 50 Hz, what is its period?
3
30 sec
Q.
In a transverse wave, the particles of the medium move:
4
30 sec
Q.
Which type of electromagnetic radiation has the longest wavelength?
5
30 sec
Q.
What happens to the frequency of electromagnetic waves as their wavelength decreases?
6
30 sec
Q.
Which of the following is NOT a property of all waves?
7
30 sec
Q.
In a longitudinal wave, what are the areas of high pressure called?
8
30 sec
Q.
What is the speed of light in a vacuum?
9
30 sec
Q.
Which part of the electromagnetic spectrum is used in radar systems?
10
30 sec
Q.
What is the relationship between wavelength (λ) and frequency (f) for any wave?
11
30 sec
Q.
Which type of electromagnetic radiation is responsible for sunburns?
12
30 sec
Q.
What happens to the particles in a medium after a wave has passed through?
13
30 sec
Q.
Which of the following is NOT a type of mechanical wave?
14
30 sec
Q.
What determines the color of visible light?
15
30 sec
Q.
Which type of electromagnetic radiation has the highest frequency?
16
30 sec
Q.
What is the main difference between UVA, UVB, and UVC radiation?
17
30 sec
Q.
How do gamma rays differ from other types of electromagnetic radiation?
18
30 sec
Q.
If a wave's speed is 340 m/s and its wavelength is 2 m, what is its frequency?
19
30 sec
Q.
Which of the following best describes how radar systems work?
