Light & Sound

What type of waves are sound waves?

• Mechanical

• Electromagnetic

• Transverse

• S Waves

Tags

NGSS.MS-PS4-2

Ethan and Elijah are conducting an experiment to measure the speed of light in different mediums. In which medium does light travel the fastest?

• vacuum

• water

• glass

• air

Harper is tuning her guitar and needs to know the unit for frequency. The unit for frequency is the ____________.

• hertz

• second

• meter

• ampere

Emma and Mason are conducting an experiment to find out in which medium light travels the fastest. They observe a continuous band of colors arranged according to wavelength or frequency, known as the ______________ ______________ spectrum. What is this spectrum called?

• electromagnetic spectrum

• visible spectrum

• light spectrum

• color spectrum

Abigail is arranging colored ribbons for a school project. She needs to list the colors of the visible light spectrum in order from longest to shortest wavelength. Help her by choosing the correct order.

• red, orange, yellow, green, blue, indigo, violet

• red, yellow, green, blue, indigo, violet, pink

• red, orange, yellow, green, blue, indigo, black

• red, orange, yellow, green, blue, purple, violet

Match the angles of incidence with the expected angles of reflection.

• Angle of incidence is 30 degrees

• Reflect at a 30° angle from the normal.

• Angle of Incidence 60 degrees

• Reflect back along the same path.

• Angle of incidence is 90 degrees

• Reflect at a 10° angle from the normal.

• Angle of incidence is 10 degrees

• Reflect at a 60° angle from the normal.

Tags

NGSS.MS-PS4-2

Match the terms about light with their descriptions.

• The color black is seen as a result of no reflected colors

• transparent

• Light will always be reflected by a surface at the same angle at which it hits the surface

• law of reflection

• An leaf looks green because all of the other colors are absorbed.

• reflection

• You can see through water, air and glass because light passes through these materials.

• refraction

• A spoon looks bent when placed in a glass of water

• absorption

Tags

NGSS.MS-PS4-2

We see a red shirt because only red light is (a)   off the shirt; all other colors are (b)   . White objects reflect all colors; ​ (c)   objects absorb all colors.

• reflected

• absorbed

• colored

• white

Tags

NGSS.MS-PS4-2

David is at a concert and notices the music reaching him through the air. What type of wave are sound waves?

• rarefactional.

• transverse.

• longitudinal.

• surface.

Aria is playing with a mirror and a flashlight. She notices that the angle of ​ (a)   is equal to the angle of ​ (b)   when the light hits the mirror.

• Incident Angle

• Reflected Angle

• Light Source

• Mirror Surface

Tags

NGSS.MS-PS4-2