_______ Phet: Waves On a String Waves on a String ? Simulation Aim: to observe relationships between frequency, wavelength, speed of waves in a rope, and observe how

physics writing question

lab
Requirements: 450
Name___________________
Phet: Waves On a String
Waves on a String ? Simulation
Aim: to observe relationships between frequency, wavelength, speed of waves in a rope, and observe how these change with changing tension in the rope.
Method: Use the pHet app Wave on a string?
Experiment 1 ? Speed of wave and tension
Set to Pulse?; Fixed End?; Damping = None; Normal; Tension = Low
Turn the Ruler and Timer on
Use the ruler to measure the length of the piece of string. Record
Click the button on the pulse generator to send a pulse through the string
Use the timer to measure how long it takes for the pulse to travel back and forth 5 times.
Repeat on moderate and High tension
Results:
Conclusion:
How does tension affect the speed of a wave in a rope?
Experiment 2 ? Generating Standing Waves of Different Harmonics
Set to Oscillate?; Fixed End?; Damping = None; Normal; Tension = Medium, Amplitude = 0.20 cm
Turn the Ruler and Timer on
Use the ruler to measure the length of the piece of string. Record it here:
Use the results of Experiment 1 to determine the speed of the wave when the rope is set to medium tension. Record here:
Analysis:
1) Determine the wavelength that will generate a second harmonic standing wave. Record it here:
Use v = λ * f to calculate the frequency of this wave.
Record it here:
Input this frequency into the simulator and press restart. If it works, show your teacher and get it checked off:
2) Determine the wavelength that will generate a third harmonic standing wave. Record it here:
Use v = λ * f to calculate the frequency of this wave.
Record it here:
Input this frequency into the simulator and press restart. If it works, show your teacher and get it checked off:
3) Draw a picture of a fifth harmonic standing wave:
Determine the wavelength that will generate a fifth
harmonic standing wave.
and Record it here:
Use v = λ * f to calculate the frequency of this wave.
Record it here:
Input this frequency into the simulator and press restart. If it works, show your teacher and get it checked off:
Experiment 3: Relationship between wavelength and frequency
Set to Oscillate? and No End?
Keep the ruler and timer on
Set the frequency to 1 and tension to low
Measure the time it takes for a wave to travel the length of the string
Measure the length of a single wave length.
Do the same measurements at Frequency = 2 and 3
Repeat the experiment at moderate and high tension
Results:
Conclusion:
If the tension remains constant and the frequency increases, what happens to the wavelength?
Is there any pattern in the last two columns of the table (speed and Frequency X wavelength)?
What is the relationship between frequency, wavelength and speed of a wave?
Name___________________
Phet: Waves On a String
Waves on a String ? Simulation
Aim: to observe relationships between frequency, wavelength, speed of waves in a rope, and observe how these change with changing tension in the rope.
Method: Use the pHet app Wave on a string?
Experiment 1 ? Speed of wave and tension
Set to Pulse?; Fixed End?; Damping = None; Normal; Tension = Low
Turn the Ruler and Timer on
Use the ruler to measure the length of the piece of string. Record
Click the button on the pulse generator to send a pulse through the string
Use the timer to measure how long it takes for the pulse to travel back and forth 5 times.
Repeat on moderate and High tension
Results:
Conclusion:
How does tension affect the speed of a wave in a rope?
Experiment 2 ? Generating Standing Waves of Different Harmonics
Set to Oscillate?; Fixed End?; Damping = None; Normal; Tension = Medium, Amplitude = 0.20 cm
Turn the Ruler and Timer on
Use the ruler to measure the length of the piece of string. Record it here:
Use the results of Experiment 1 to determine the speed of the wave when the rope is set to medium tension. Record here:
Analysis:
1) Determine the wavelength that will generate a second harmonic standing wave. Record it here:
Use v = λ * f to calculate the frequency of this wave.
Record it here:
Input this frequency into the simulator and press restart. If it works, show your teacher and get it checked off:
2) Determine the wavelength that will generate a third harmonic standing wave. Record it here:
Use v = λ * f to calculate the frequency of this wave.
Record it here:
Input this frequency into the simulator and press restart. If it works, show your teacher and get it checked off:
3) Draw a picture of a fifth harmonic standing wave:
Determine the wavelength that will generate a fifth
harmonic standing wave.
and Record it here:
Use v = λ * f to calculate the frequency of this wave.
Record it here:
Input this frequency into the simulator and press restart. If it works, show your teacher and get it checked off:
Experiment 3: Relationship between wavelength and frequency
Set to Oscillate? and No End?
Keep the ruler and timer on
Set the frequency to 1 and tension to low
Measure the time it takes for a wave to travel the length of the string
Measure the length of a single wave length.
Do the same measurements at Frequency = 2 and 3
Repeat the experiment at moderate and high tension
Results:
Conclusion:
If the tension remains constant and the frequency increases, what happens to the wavelength?
Is there any pattern in the last two columns of the table (speed and Frequency X wavelength)?
What is the relationship between frequency, wavelength and speed of a wave?