Unit 1 - Review Slides

Multiple Choice

Which of the following is a scientific hypothesis?

• Inception is the best science fiction movie ever created.

• High frequency pitches sound nicer than low frequency sounds.

• A larger and faster vibration will cause a wave to travel faster.

• Physics class is the most fun class offered in high school.

Multiple Choice

What is the independent variable in the following experiment: A student tests the speed of a wave in a slinky with different tensions.

• the slinky

• the speed of the wave

• the frequency of the wave

• the tension of the slinky

Multiple Choice

What is the dependent variable in the following experiment: A student tests the speed of a wave in a slinky with different tensions.

• the slinky

• the speed of the wave

• the frequency of the wave

• the tension of the slinky

Multiple Choice

When creating a model to show the how sound travels, which of the following would you NOT depict?

• Sound particles moving from the sound source to the observer.

• Disturbances moving from the sound source to the observer.

• Air particles moving back and forth.

• Energy being transferred by the collision of molecules.

Multiple Choice

True or False: The louder the sound created by an instrument, the higher the frequency.

• True

• False

Multiple Choice

What is the frequency of a wave that completes 25 cycles in 5 seconds?

• 5 Hz

• .02 Hz

• 125 Hz

• 30 Hz

• 255 Hz

Multiple Choice

True or False: Volume of a sound is related to the density of particles in a disturbance (or compression).

• True

• False

Labelling

Drag the correct label to the box that it represents

Drag labels to their correct position on the image

Crest

Trough

Wavelength

Labelling

Drag the correct label to the box that it represents

Drag labels to their correct position on the image

Rarefaction

Wavelength

Compression

Multiple Choice

True or False: The picture correctly depicts the amplitude of a wave.

• True

• False

Dropdown

​P-waves are ​

Select answer

waves because the medium travels ​

Select answer

to the energy in the wave, they are ​

Select answer

than S-waves.

Dropdown

​S-waves are ​

Select answer

waves because the medium travels ​

Select answer

to the energy in the wave, they are ​

Select answer

than P-waves.

Reorder

Reorder the following from lowest frequency to highest frequency (if they are in the same medium):

1

2

3

• 1
• 2
• 3

Reorder

Reorder the following from lowest pitch to highest pitch (if they are in the same medium):

1

2

3

• 1
• 2
• 3

Reorder

Reorder the following from highest amplitude to lowest amplitude (if they are in the same medium):

1

2

3

• 1
• 2
• 3

Multiple Choice

How can you make a wave travel faster?

• Increase the frequency.

• Decrease the frequency.

• Increase the amplitude.

• Decrease the amplitude

• Change the medium it is traveling in.

Multiple Choice

If a wave enters a new medium where it travels faster, what happens to the wavelength?

• It gets bigger.

• It gets smaller.

• It stays the same.

Multiple Choice

If a wave travels in the same medium, what happens to wave speed as frequency is increased?

• It gets bigger.

• It gets smaller.

• It stays the same.

Multiple Choice

If a problem asks you to solve for wavelength, which formula should you use?