CSA

Waves that travel in the same direction as the vibrations that create them are known as longitudinal waves. As the wave travels, different spacing occurs as the energy moves.

What is the name for how the waves are organized in section A?

• rarefaction

• compression

• amplitude

• transverse

Tags

NGSS.MS-PS4-1

The diagram provided represents two sound waves.
Which is the best conclusion supported by the data provided in the diagram?

• Sound Wave # 1 will reflect more easily than Sound Wave # 2.

• Sound Wave # 1 will sound louder than Sound Wave # 2.

• Sound Wave # 1 will be a different pitch than Sound Wave # 2.

• Sound Wave # 1 will travel in a straight line, but not Sound Wave # 2.

  Sound Wave # 1 will travel in a straight line, but not Sound Wave # 2.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Students are modeling waves by shaking a rope up and down. We know this is waves because ____________________.

• the rope is made up of strands of cotton threads which are braided together.

• it has a repeating pattern with a specific wavelength, frequency, and amplitude.

• the rope stops moving when the students stop shaking it up and down.

• the student can change the distance the rope moves by moving the rope further up or down.

Tags

NGSS.MS-PS4-1

Ricky and his family enjoy watching car racing at a nearby arena. As the cars approach the spot where Ricky and his family are sitting in the arena, Ricky perceives that they are making a higher pitched sound than they did when they were farther away. Which statement best explains what causes the pitch to be higher as the cars approach?

• The sound waves are more compressed.

• The sound waves are more spread out.

• The sound waves are vibrating less.

• The sound waves are amplified less.

List the steps of the scientific method

d

e

f

c

b

a

Form a hypothesis

Draw conclusions

Communicate results

Analyze results

Conduct experiment

Ask a question

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS4-1

When wavelength increases, frequency in turn ______________.

• increases

• remains constant

• decreases

• breaks up

Tags

NGSS.HS-PS4-1

A jet flies over the ocean. A sound wave travels from the jet to the surface of the ocean. Almost none of the energy from the sound passes into the water. The diagram below illustrates a reflection, the path of the sound wave. Which of the following statements best explains this scenario?

• The sound wave's direction and wavelength change, but its speed remains the same.

• The sound wave's direction and speed change, but it's wavelength remains the same.

• The sound wave's direction, speed, and wavelength change

• The sound wave's direction changes, but its speed and wavelength remain the same.

Tags

NGSS.MS-PS4-2

When a wave changes, it impacts the energy it transfers. The graph below shows the relationship between changes in amplitude or frequency and energy transferred. CHOOSE THE TWO STATEMENTS BELOW THAT ARE TRUE.

• As the frequency increases, the energy decreases.

• As the amplitude increases, the energy increases.

• As the amplitude increases, the energy decreases.

• As the frequency increases, the energy increases.

Tags

NGSS.MS-PS4-1

What type of breeze is this? (During the Day)

• Land Breeze

• Sea Breeze

• Mountain Breeze

• Valley Breeze

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6