# Quiz – Standing/Sound Waves

### Before Class Preparation:

• Finish Assigned CK12 & Self Quizzes
• Bring calculator

### In Class Work:

• 15 minute group discussion
• 30 minute quiz: Application of Standing/Sound Waves

Can you:

• Determine a wave’s period & frequency when given a graph of the wave.
• Calculate the frequency of a standing wave in a medium that is:
• Open at both ends
• Closed at both ends
• Open at one end
• Calculate the speed of sound from a standing wave patterns in an air column closed at one end.
• Draw a standing wave pattern for an air column or string instrument and
• Calculate frequencies/lengths of the instrument
• Describe and calculate how sound changes (frequency, wavelength, velocity) through different mediums

### After quiz:

Take up the quiz immediately using Sage & Scribe

# Waves Exercise

Before Class Preparation:

• Read and print (if you want to)
• Self Driving Cars: Should they replace human driven ones?

In Class Activity:

• Solving problems involving wave speed, frequency and wavelength

After Class Work:

# Intro to Data Organization: Waves

Before Class Preparation:

• Edpuzzle: Accuracy Versus Precision
• BYOD Laptop or Chromebook
• Video: Uncertainty of a measured number

In Class Activity:

• Lesson: Averaging raw data and its uncertainties
• Assignment: Air Column Resonance Data Table in Google Classroom

After Class Work:

# Resonance in an air column

Before Class Preparation:

• Read this overview of Resonance in an Air Column
• What is the distance between different parts of a standing wave (nodes, anti-node) in terms of wavelength?
• Read this handout: Air Column Resonance
• Print if possible
• Identify the variables on the handout
• We’ll be working with water, so computers may not be the best idea

In Class Activity:

After Class Work:

• Create a data table using Google Sheets
• Organize class data for lesson tomorrow
• Tutorial Video: Air columns & sound waves
• CK12: Sound in a tube

# Sound Demonstrations

Before Class Preparation:

• BYOD for Pear Deck

In Class Activity:

• Sound Demo Activities:
• investigate, in qualitative and quantitative terms, the properties of mechanical waves and sound, and solve related problems
• Simulations:

After Class Work:

# Gizmo: Longitudinal Waves

Before Class Preparation:

• BYOD (Laptop or Chromebook)
• Class code: SNYP2KU7BC

In Class Activity:

• Gizmo: Longitudinal Waves
1. Complete handout FIRST
2. Check with key after submission
3. Try the 5 question quiz LAST

After Class Work:

• Finish Gizmo
• CK12

# Making Standing Waves

Before Class Preparation:

• Read handout: Standing Waves and print it if you can
• Leave backpacks and jackets in your locker. We’ll need lots of space to build the wave machine. (just bring essentials)

In Class Activity:

After Class Work:

# Wave Reflection and Standing Waves

Before Class Preparation:

• BYOD for Google Form lesson

In Class Activity:

• Demonstrate an understanding of wave interference and the construction of standing waves in a medium (Google form lesson)

After Class Work:

• Video in Edpuzzle
• CK12 practice in Google Classroom

# Interference of Waves

Before Class Preparation:

• Read (or print if you’re able) and answer A1 of handout: Interference
• You may BYOD if you can draw directly on the handout (remember that these are your notes)

In Class Activity:

• Challenge: Don’t knock the cups over!
• Explain and graphically illustrate the principle of superposition

After Class Work:

# Speed of Waves

Before Class Preparation:

In Class Activity:

• Investigate the relationship between the wavelength, frequency, and speed of a wave, and solve related problems
• Group Work:
•  Speed of waves

After Class Work:

• Videos: