Waves simulation 8M1

Explore waves with fun simulations! See how amplitude, frequency, and wavelength change for water, sound, and light.

write your full name and section PURPOSE: to investigate how waves respond to a variety of materials and how properties like amplitude, frequency, and wavelength change their qualities. Waves introduction: frequency, amplitude, waves speed Follow the instructions WATER WAVES SIMULATION Choose WaterClick Side View, (bottom left). Choose multi-wave.Set Frequency and Amplitude in the middle. Click the Graph.Click on the green dot on the faucet and start the water flowing. Observe the waves. Compare what you see with the water to the waves on the graphs.You cannot write answers to the following questions here, but you will need them for the summary at the bottom.1. Now increase the frequency. What happens with the number of waves?What happens to the distance between waves (wavelength)?2. Increase the amplitude. What happens with waves?3. Decrease the frequency. What happens with the number of waves?What happens to the distance between waves (wavelength)?4. Decrease the amplitude. What happens with the waves? Water waves summary Describe in the table below what you see in the simulation in each situation:One example is done for you. Low amplitude High amplitude Low frequency High frequency Short wavelength Long wavelength short waves Tall waves high number of waves less number of waves high frequency (high number of waves) low frequency (low number of waves) SOUND WAVES SIMULATION Now choose the Speaker (sound) the bottom. Set to side view and the multiple waves.Put Frequency and Amplitude in the middle (just like you did with the water).Choose Play Tone and Waves.You cannot write answers to the following questions here, but you will need them for the summary at the bottom.1. You can have your sound on - but don’t have it extremely loud. Push the green button for sound. What do you notice about the waves?2. What do you notice about the speaker?3. Now increase the frequency. How does the speaker movement change?4. What happens with the pitch of the sound? And to the number of waves? What happens to the distance between waves (wavelength)?5. Now decrease the frequency. How does the speaker movement change?6. What happens with the pitch of the sound? What happens to the number of waves?What happens to the distance between waves (wavelength)?7. Increase the amplitude. How does the speaker movement change?8. Does the pitch change? What happens to the volume?9. Decrease the amplitude. How does the speaker movement change?10. Does the pitch change? What happens to the volume? Sound Waves Summary Describe in the table below what you hear (see) in each situation.One example is done for you. Low amplitude High amplitude Low frequency High frequency Short wavelength Long wavelength low sound Loud sound low number of waves high number of waves high frequency (high number of waves) low frequency (low number of waves) LIGHT WAVES SIMULATION Now choose Light at the bottom. Set the Frequency and Amplitude sliders in the middle.You cannot write answers to the following questions here, but you will need them for the summary at the bottom.1. What colour is the light?2. Slide the frequency to the left (so a lower frequency). What happens to the colour? What happens to the number of waves? What happens to the distance between the waves (wavelength)?3. Slide the frequency to the right (so a higher frequency). What happens to the colour?What happens to the number of waves?What happens to the distance between the waves (wavelength)?4. Choose one colour (frequency). Increase the Amplitude.5. Does the colour (frequency) change? Does the Brightness change? How?6. Choose one colour (frequency). Decrease the Amplitude.7. Does the colour (frequency) change? Does the brightness change? How? Light Waves Summary Describe in the table below what you see in each situation.One example is done for you. Low amplitude High amplitude Low frequency High frequency Short wavelength Long wavelength dim low light Bright light low number of waves high number of waves high frequency ( high number of waves ) low frequency ( low number of waves ) what is the value of the amplitude in this wave? 4 cm 4 m 10 cm 10 m BONUS: can you find the frequency of this wave? 0.1 Hz 10 Hz 1 Hz 4 wave Wave interference simulation Play with the following simulation.The first part is familiar (waves) but have a look at the interference. What happens when two waves meet? Below amplitude, you can also find buttons for sound and light.You can change lots of variables: the number of slits, the distance of the slits, amplitude, frequency. You can watch how water, sound or light waves pass through the slits.The last simulation shows diffraction of light - you can change the colours, size and shape of the slits, and see how the light gets diffracted. Did these simulations help you to understand how water, sound and light waves propagate (spread)? Did you enjoy playing with the second simulation?