Crash Course Traveling Waves

Tectonic activity causes potential energy to build up in the crust. An earthquake occurs when this potential energy is released within the crust. Which statement BEST describes what happens when the energy is released?

• It generates seismic waves that spread out in all directions around Earth.

• It generates heat waves that affect climate changes around Earth.

• It generates changes in the magnetic field of Earth.

• It generates changes in the orbiting speed of Earth.

Tags

NGSS.MS-PS3-5

NGSS.MS-ESS3-2

Which of these factors affects how fast a sound wave moves?

• the kind of material it is moving through

• the amplitude of the sound wave’s vibrations

• the wavelength of the disturbance in the medium

• the type of motion that caused the sound wave to form

Tags

NGSS.MS-PS4-2

Look at this illustration of a wave.Which points on the wave are the trough and the crest?

• Point W is a trough; Point Y is a crest.

• Point Y is a trough; Point W is a crest.

• Point Y is a trough; Point X is a crest.

• Point W is a trough; Point Z is a crest.

Tags

NGSS.MS-PS4-1

Why does sound travel faster through a solid object than in the air?

• The atoms in the solid object are farther apart than the atoms in the air.

• The atoms in the solid object are closer together than the atoms in the air.

• The atoms are smaller in the solid object than the atoms in the air.

• The atoms are larger in the solid object than the atoms in the air.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

This is a wave pattern diagram for two transverse waves.How do the waves compare?

• Both waves have the same frequency.

• Both waves have the same wavelength.

• Wave 1 has a longer wavelength than Wave 2.

• Wave 1 has a higher frequency than Wave 2.

Tags

NGSS.MS-PS4-1

This illustration shows a sound wave traveling from a tuning fork through a medium.How can the wavelength be determined?

• by comparing the width of the bands at X and at Y

• by comparing the number of particles at X and at Y

• by measuring the distance between two points labeled X

• by measuring the distance between a point labeled X and a point labeled Y

Tags

NGSS.MS-PS4-1

A crayon placed on a dark driveway in bright sunlight melted into a colorful puddle. What caused the crayon to melt?

• Solar radiation heated the driveway and then heat transferred to the crayon by conduction.

• Solar radiation heated the driveway and then heat transferred to the crayon by radiation.

• Solar convection heated the driveway and then heat transferred to the crayon by radiation.

• Solar convection heated the driveway and then heat transferred to the crayon by conduction.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

A band has many different musical instruments. Each instrument is played differently.In which way are all musical instruments alike?

• They all use a vibration to make sound waves.

• They all send sound waves in only one direction.

• They all make sound waves with the same amplitude.

• They all make sound waves when two objects strike one another.

Tags

NGSS.MS-PS4-1

What do waves carry through objects?

• sound

• light

• energy

• water

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The illustration shows a transverse wave.Which bar measures the wavelength of the wave?

• bar W

• bar X

• bar Y

• bar Z

Tags

NGSS.MS-PS4-1