APMT #1: PRACTICE

Here are some practice questions that go with the first episode. Watch the video first then answer the questions below.

Question 1: Label the parts of the wave shown below.


Question 2: Assuming the scales of the images below are the same, which wave has the highest frequency? Which one has the lowest frequency?


Question 3: Match each audio file with the image that best represents it.

Audio 1:

Audio 2:

Audio 3:


Image A:

Image B:

Image C:


Question 4: What is the formula used to depict sound waves?


For questions 5-8, use the graphs to find the frequency of the sound depicted.
Question 5:


Question 6:


Question 7:


Question 8:

Answer 1:

Answer 2: Highest frequency: green. Lowest frequency: yellow.
Answer 3: Audio 1, Image B; Audio 2, Image C; Audio 3, Image A
Answer 4: y=sin(2 * pi * frq * x)
Answer 5: 3 Hz
Answer 6: 8 Hz
Answer 7: 300 Hz
Answer 8: 610 Hz