Waves Review - Basics plus EM ppms

__________ waves do NOT need a medium to carry energy.

• transverse
• electromagnetic
• mechanical
• longitudinal

Tags

NGSS.HS-PS4-3

All __________ waves need a medium to carry energy.

• transverse
• electromagnetic
• mechanical
• longitudinal

Which waves are used for wireless and cell phone communications?

• X-rays
• Infrared Waves
• Ultraviolet Rays
• Microwaves

Tags

NGSS.HS-PS4-5

Which wave has less energy, and why?

• Wave #1, because it has a lower amplitude
• Wave #1, because it has a longer wavelength.
• Wave #3, because it has a shorter wavelength
• Wave #2, because it has a higher amplitude

Tags

NGSS.MS-PS4-1

Which waves can cause sunburn.

• Ultraviolet Rays
• Microwaves
• X-rays
• Infrared Waves

Sound waves cannot travel in outer space, because they are

• longitudinal waves.
• transverse waves.
• mechanical waves.
• electromagnetic waves.

Which waves help our bodies produce vitamin D to keep our bones and teeth healthy?

• X-rays
• Ultraviolet Rays
• Microwaves
• Infrared Waves

What is reflection?

• the bouncing of a wave as it moves from one medium to another
• the bending of a wave as it strikes a surface
• the bending of a wave as it moves from one medium to another
• the bouncing of a wave as it strikes a surface

Tags

NGSS.MS-PS4-2

According to the Law of Reflection, if a wave strikes a barrier at a 45° angle, it will reflect off the barrier at __________.

• a 30° angle.
• a 45° angle.
• a 60° angle.
• There is no way to tell.

Tags

NGSS.MS-PS4-2

What is refraction?

• the absorbing of a wave as it moves from one medium to another
• the bouncing of a wave as it moves from one medium to another
• the absorbing of a wave as it strikes a barrier
• the bending of a wave as it moves from one medium to another

Tags

NGSS.MS-PS4-2