Waves Math

Which of the following is not true of EM Waves

• They travel at the speed of light

• They do not need a medium to travel

• They are traveling energy

• Each wave has the same wavelength and frequency

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which is the best explanation of why the EM Spectrum is written using scientific notation and power of ten?

• The variety of waves and their characteristics are vast

• Each wave has unique wavelength and frequency

• Sound Spectrum is not written in power of ten

• Sound spectrum is very small when compare to EM spectrum

Based on the sound spectrum, what frequencies can humans voice?

• 5-12,000 Hz

• 150-150,000 Hz

• 20-20,000 Hz

• 85-1100 Hz

Based on the diagram, the sound that are outside of the Audible range and have a higher frequency are called ______________.

• Infrasound

• Ultrasound

• Audible Sound

• Audible Frequencies

Write 510000 in scientific notation. Use the ^ button (shift +6) to show the power of ten. Example 5.01 x 10^9

(a)  

Based on the EM spectrum, which waves are longer than visible, but shorter than microwaves?

• Ultraviolet

• X-Ray

• Gamma Ray

• Infrared

Which of the following forms of technology is not 20 years old?

• Youtube

• Facebook

• GPS

• Netflix

How many times larger is 10^-1 than 10^-3

• 100

• 10

• 1

• 1/10

Select the largest number.

• 1.5 x 10^-3

• 1.5 x 10^-4

• 1.5 x 10^-5

• .00015

Select the largest number.

• 15000

• 1.5 x 10^3

• 1.5 x 10^-6

• 1.5 x 10^2