1. The images above show particles in a medium. Which of the following shows the worst conditions for a sound wave travel?

A
B
C
D
is the answer A?
Which of the following correctly describes a radio wave?
A long wavelength and high frequency
B long wavelength and low frequency
C short wavelength and low frequency
D short wavelength and high frequency
is the answer B?
When the energy of a light wave is transferred to a particle and causes it to vibrate and generate heat, the energy of the light wave is
A absorbed
B reflected
C refracted
D transmitted
is the answer A?
On the light wave above, the property indicated by the arrow determines which characteristic of light?
A brightness
B speed
C reflection
D energy
How are sonar and ultrasound imaging technologies different?
A They use different types of sound waves
B They use sound to see places that otherwise cannot be seen
C They are used for different purposes
D They are used to examine things
Certain seismic waves travel as
A electromagnetic and transverse waves
B visible light and longitudinal waves
C longitudinal and transverse waves
D compression and visible light waves
What do some bats use to locate food and to navigate?
A seismic waves
B echolocation
C radio waves
D ultraviolet light
A broadcasting station sends information to your radio or television with
A microwaves
B ultrasound waves
C mechanical waves
D radio waves
Light waves strike a lamp shade. What property of light is demostrated?
A diffuse reflection
B diffraction
C refraction
D regular reflection
The curies discovered which two elements?
A radium and polonium
B cesium and thorium
C mercury and hydrogen
D cadmium and francium
Why does the wave of light bend toward the normal as it enter water?
A Water has a lower index of refraction than air, so the wave slows down
B Water has a lower index of refraction than air, so the wave speeds up
C Water has a higher index of refraction than air, so the wave speeds up
D Water has higher index of refraction than air, so the wave slows down
12. AM signals travel as changes in
A the speed of the wave
B the amplitude of the wave
C the frequency of the wave
D the loudness of the wave
Marie and Pierre Curie coined which term to describe the ability of certain elements to give off radiation spontaneously?
A fluorescence
B rarefaction
C radioactivity
D electromagnetic
Which letter shows the type of wave that can be used to see inside the human body?
A
B
C
D

1. D

2. B
3. A
4. A
5. C
6. C
7. B
8. D
9. A
10. A
11. D
12. B
13. C
14. D
These are 100% ;)
P.S.~
Next time, mark YOUR answers and then people will tell you if they are correct or not. :-)

She is correct

AnswerQueen you are amazing and good things come to good people thank you so much!!

yes she is right

answer queen is right thanks so much <3

Thank you so much answerqueen, your amazing.

I would think after I went to the trouble of numbering your questions (as well as checking the answers you gave) that you would at least post again WITH NUMBERS. How in the world do you expect anyone to tell you which question is being answered? Also I note you didn't change any of your answers as a result of the earlier post and you didn't add any more answers of your own.

Do you know what the answers are Unknown?

Still all correct April 2021. Thank you

To find the answers to the multiple-choice questions:

1. To determine the worst conditions for a sound wave to travel, you need to assess the medium in which the particles are moving. Look at the provided images above and determine which shows the least favorable conditions for sound wave travel.

2. To describe a radio wave correctly, you need to understand its properties. Compare the given options of different wavelengths and frequencies of the radio wave to determine the correct one.

3. To determine what happens when the energy of a light wave is transferred to a particle causing it to vibrate and generate heat, consider the different possibilities of absorption, reflection, refraction, and transmission. Identify which option describes this scenario.

4. Look at the provided image of the light wave and identify which property, indicated by the arrow, determines a specific characteristic of light such as brightness, speed, reflection, or energy.

5. Understand the difference between sonar and ultrasound imaging technologies and compare them. Determine whether they use different types of sound waves, help see places that otherwise cannot be seen, serve different purposes, or are used to examine things.

6. Differentiate between seismic waves and other types of waves. Identify which waves travel as electromagnetic and transverse, visible light and longitudinal, longitudinal and transverse, or compression and visible light waves.

7. Determine what some bats use to locate food and navigate. Consider whether it is seismic waves, echolocation, radio waves, or ultraviolet light.

8. Understand how a broadcasting station sends information to your radio or television. Determine whether it uses microwaves, ultrasound waves, mechanical waves, or radio waves.

9. Analyze what property of light is demonstrated when light waves strike a lamp shade, considering options like diffuse reflection, diffraction, refraction, or regular reflection.

10. Identify the elements discovered by the Curie couple by comparing the options of radium and polonium, cesium and thorium, mercury and hydrogen, or cadmium and francium.

11. Determine why the wave of light bends toward the normal as it enters water. Consider the indexes of refraction between air and water and determine whether they cause the wave to slow down or speed up.

12. To determine what AM signals travel as, compare the options of changes in the speed of the wave, amplitude of the wave, frequency of the wave, or loudness of the wave.

13. Find out which term Marie and Pierre Curie coined to describe the ability of certain elements to give off radiation spontaneously. Consider options like fluorescence, rarefaction, radioactivity, or electromagnetic.

14. Look at the given options of different letter waves and determine which one can be used to see inside the human body.