Science 8 ● Semester A

Question

Science 8 ● Semester A
Waves Portfolio
Virtual Lab

Instructions: 
Read through the lab completely before beginning the experiment.  Check the Lab Rubric at the end of this document for grading.
Collect all necessary materials before beginning the lab.
Create a copy of this lab so you can fill it out as you go. Do not request editing access. You can print it and write on it, or you can make a copy in Google Docs or Microsoft Word.
Save a finished copy of this worksheet that includes your answers. Upload it into the Unit 2 Lesson 13 Waves Apply Dropbox in Connexus.
Reach out to your science teacher if you have any questions!
__________________________________________________________________________________________
Bending Light
Instructions: Carefully read the directions to complete the virtual tasks in order.  Then answer each of the questions given.

I. Bending Light Intro:
→ Click the “Intro” tab.

→ Turn on the laser by clicking the red button.  You will see the light getting reflected and refracted. Now move the laser pointer left and right by clicking and holding on the silver part and moving it.
→ Move the yellow protractor over the light. View the picture below for placement.

→ Move the laser so that the Angle of Incidence (light coming off the pointer) is 30°, just like in the picture above.
→ Enter the Angle of Refraction for 30° in the table below. Toggle between mediums on the right side of the simulation to change the mediums to help you complete the table below.

→ Maneuver the pointer for each Angle of Incidence listed in the table below and enter the angle of refraction for each angle of incidence.
→ Repeat steps #5 and #6 for each angle of incidence to help you complete the table below.

II. Bending Light Table:

Angle of Incidence
Angle of Refraction
Air to Water
Air to Glass
Glass to Water
30°
°
°
°
45°
°
°
°
60°
°
°
°
90°
°
°
°

III. Bending Light Questions:

Type Answer HERE:

Sound Waves Lab
Instructions: Carefully read the directions to complete the virtual tasks in order.  Then answer each of the questions given.

IV. Sound Waves: Pitch & Loudness Videos:
Watch the following Videos, Read the given information on wavelength, frequency, and amplitude, & then answer the questions following it.  If you would like to try some of the labs given in the video, go for it.
Click Here for Video on Low & High Pitch
Click Here for Video on Loudness of Sound

→ Wavelength, Frequency, & Amplitude
In the realm of waves, such as light or sound, the relationship between wavelength, frequency, and amplitude plays a crucial role in understanding their characteristics. Wavelength refers to the distance between two consecutive points in a wave that are in phase, meaning they have the same position in their respective cycles. Frequency, on the other hand, represents the number of complete cycles or oscillations that a wave completes in a given time interval, typically measured in hertz (Hz). The higher the frequency, the shorter the wavelength, and vice versa. Amplitude, on the other hand, describes the maximum displacement of a wave from its equilibrium position. It determines the intensity or strength of the wave, with greater amplitudes conveying more energy. Consequently, these three properties are interconnected; a higher frequency wave will have a shorter wavelength and can carry more energy, resulting in a larger amplitude. Understanding the relationship between wavelength, frequency, and amplitude allows us to comprehend the behavior and characteristics of various waves in different contexts.

V. Sound Waves: Pitch & Loudness Questions:

Type Answer HERE:

VI. Analyzing the Data: 
7. The pictures show three objects.

Which of the following correctly matches the letters with the names of the objects?
Type Answer HERE:

b. 
        c.                        d.

8. The table shows the densities of four substances.
 
Substance
Density (grams/centimeter3)
air
0.00123
water
1.00
steel
7.87
copper
8.96

Based on this information, in which substance is the speed of sound waves likely the greatest?
Air
Water
Steel
Copper

Type Answer HERE:

9. The table shows the speed of sound in three states of matter.
 
Material
Speed of Sound (meters/second)
air
330
water
1,500
glass
5,100

What happens to the speed of sound as it travels through a gas and into a solid?
The speed increases.
The speed decreases.
The speed increases and then decreases.
The speed decreases and then increases.

Type Answer HERE: 
10. The diagram below shows a portion of the electromagnetic spectrum.

Which of the following statements correctly explains the relationship between FM and AM radio waves?
FM radio waves carry less energy than AM radio waves. This is supported by the fact that FM radio waves have a shorter wavelength compared to AM radio waves.
FM radio waves carry less energy than AM radio waves. This is supported by the fact that FM radio waves have a longer wavelength compared to AM radio waves.
FM radio waves carry more energy than AM radio waves. This is supported by the fact that FM radio waves have a shorter wavelength compared to AM radio waves.
FM radio waves carry more energy than AM radio waves. This is supported by the fact that FM radio waves have a longer wavelength compared to AM radio waves.
Type Answer HERE:

VII. READING & EVIDENCE IN SCIENCE:  Follow the instructions to open the required MyON Reading for this portfolio. Use the assigned book to help you answer the following questions.

11. The electromagnetic spectrum is divided into 7 main types of energy.  List all 7 in order from lowest energy to highest energy. (pages 10-12)
Type Answer HERE:
12. What is one use for high energy gamma rays mentioned in the text? (page 12)
Type Answer HERE:

13. How did Sir Issac Newton use a prism to discover the colors of the visible light spectrum? (pages 13 - 15)
Type Answer HERE:

Virtual Lab Waves- 
Grading Rubric
Scoring Rubric
Points

Bending Light Table

4 points
Student completes the Bending Light Table with accuracy & detail.  
0-3 points
Student did not complete or answer the questions correctly.

/4

Bending Light  Questions

3 points
Student completes the Bending Light Questions with accuracy & detail.  
0-2 points
Student did not complete or answer the questions correctly.

/3

Sound Waves: Pitch & Loudness Questions

3 points
Student completes the Sound Waves: Pitch & Loudness Questions with accuracy & detail.  
0-2 points
Student did not complete or answer the questions correctly.

/3

Analyzing the Data
4 points
Student completes the Analyzing the Data section correctly and accurately.
0-3 points
Student did not complete or answer the questions correctly.

/4

Analyzing Informational Text
3 points
Student read the text prompts and completed each question correctly and accurately.  All is supported with evidence from the text.  
0-2 points
Student did not complete or answer the questions correctly.

/3

Total ___ / 17
Portfolio Assignment in Science

GPT-4o mini · Answer

Certainly! Below is a structured format to help you fill in the responses needed for your Waves Portfolio based on the experiments and questions listed in your instructions. For the experimental sections, you would need to refer to your virtual lab results. Here's how to fill them out:

II. Bending Light Table:

Angle of Incidence | Angle of Refraction | Air to Water | Air to Glass | Glass to Water --- | --- | --- | --- | --- 30° | (Enter angle of refraction for 30° here) | (Result) | (Result) | (Result) 45° | (Enter angle of refraction for 45° here) | (Result) | (Result) | (Result) 60° | (Enter angle of refraction for 60° here) | (Result) | (Result) | (Result) 90° | (Enter angle of refraction for 90° here) | (Result) | (Result) | (Result)

III. Bending Light Questions:

Describe what happens to a light ray as it passes from air into water.
- Type Answer HERE:
Explain the difference between reflection and refraction.
- Type Answer HERE:
How does the angle of incidence relate to the angle of refraction in different materials?
- Type Answer HERE:

V. Sound Waves: Pitch & Loudness Questions:

What factor primarily determines the pitch of a sound?
- Type Answer HERE:
How does loudness affect the amplitude of a sound wave?
- Type Answer HERE:
Explain how frequency relates to the sound we can hear.
- Type Answer HERE:

VII. Analyzing the Data:

The pictures show three objects. Which of the following correctly matches the letters with the names of the objects?
- Type Answer HERE:
Based on the table of densities, in which substance is the speed of sound likely the greatest?
- Type Answer HERE: Copper (it has the highest density)
What happens to the speed of sound as it travels through a gas and into a solid?
- Type Answer HERE: The speed increases.
Which of the following statements correctly explains the relationship between FM and AM radio waves?

Type Answer HERE: FM radio waves carry more energy than AM radio waves. This is supported by the fact that FM radio waves have a shorter wavelength compared to AM radio waves.

VIII. READING & EVIDENCE IN SCIENCE:

The electromagnetic spectrum is divided into 7 main types of energy. List all 7 in order from lowest energy to highest energy.

Type Answer HERE: Radio waves, Microwaves, Infrared, Visible light, Ultraviolet, X-rays, Gamma rays.

What is one use for high energy gamma rays mentioned in the text?

Type Answer HERE: (Provide the specific use mentioned in your reading.)

How did Sir Isaac Newton use a prism to discover the colors of the visible light spectrum?

Type Answer HERE: (Explain Newton's experiment with a prism showing colors.)

After filling in the answers, be sure to check that you have completed each section clearly and accurately. Save your document and upload it as required. If you have specific results from the virtual lab, make sure to replace placeholder text with those specific results. Good luck with your assignment!