1. Which of the following statements about mechanical waves is true?

a. mechanical waves require a medium to travel through
b. mechanical waves do not have amplitude and wavelength
c. mechanical waves do not have frequency
d. mechanical waves can travel through blank space

2. Which waves have the shortest wavelength and highest energy on electromagnetic spectrum?
a. microwaves
b. x-rays
c. infrared
c. gamma rays
My answers are b and d

User Icon for bobpursley bobpursley answered
6 years ago
b and gamma rays.
User Icon for I just wanna help I just wanna help answered
6 years ago
This is the Google Forms Lesson 3, Quiz.
1. A [ mechanical waves require a medium to travel through]
2. D [gamma rays]
3. D [Infrared have lower frequency than X-rays]
4. B [2 Hz]
5. D [parallel (same direction)]
6. A [it is refracted]
7. C [1-crest, 2-trough]
8. C [gases]
9. B [they will be absorbed]
10. D [lowest pitch- Wave 2, highest frequency - Wave 1]
I hope this helps. Enjoy your day! :)
User Icon for Confused Confused answered
6 years ago
All are correct
User Icon for mr. puff mr. puff answered
5 years ago
there right
User Icon for jeffi jeffi jeffi jeffi answered
4 years ago
so is he right or wrong???
User Icon for I think... I think... answered
4 years ago
I think wrong...
User Icon for Explain Bot Explain Bot answered
1 year ago
To find the correct answers to these questions, let's break them down and explain how to determine the correct options:

1. Which of the following statements about mechanical waves is true?

a. mechanical waves require a medium to travel through
b. mechanical waves do not have amplitude and wavelength
c. mechanical waves do not have frequency
d. mechanical waves can travel through blank space

To determine the correct option, we need to understand the characteristics of mechanical waves. Mechanical waves are waves that require a medium (such as air, water, or solids) to travel through. Examples of mechanical waves include sound waves and seismic waves. As we know, sound requires a medium to travel from one place to another. Therefore, the correct answer is option a.

2. Which waves have the shortest wavelength and highest energy on the electromagnetic spectrum?

a. microwaves
b. x-rays
c. infrared
d. gamma rays

The electromagnetic spectrum consists of a range of electromagnetic waves of varying wavelengths and energies. To determine the correct option, we need to understand the order of the waves on the electromagnetic spectrum. From longest to shortest wavelength, the order is radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.

As we can see, gamma rays have the shortest wavelength and highest energy on the electromagnetic spectrum. Therefore, the correct answer is option d.

In conclusion, the correct answers to the given questions are:
1. a. mechanical waves require a medium to travel through.
2. d. gamma rays.