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Mastery Check 7-7 (A)

Last updated 9 months ago

8 questions

1

Question 1

1.

Mastery checks are pledged activities. You may ONLY use: a calculator. No assistance from notes, friends, the internet, etc.
You may write "I pledge" and sign your name here.

1

2

2

2

Question 2

2.

Light waves travel through a vacuum (empty space) so they don't have a medium

True

False

1

1

1

Question 6

6.

A wave of visible light has a frequency of 4.6 \times 10^{14} Hz. Calculate the wavelength of the wave, and say which color it is:

Question 7

7.

While on Burch, you see a lightning bolt flash across the sky, and then hear the thunder a few seconds later. The next day, you hike over to the spot the lightning struck and find that it was 1500 m away from where you were when you saw it.

If the speed of light is 3 \times 10^8 m/s, calculate how much time passes between the lightning bolt hitting the ground and the light from the bolt traveling to your eyes.

Question 8

8.

While on Burch, you see a lightning bolt flash across the sky, and then hear the thunder a few seconds later. The next day, you hike over to the spot the lightning struck and find that it was 1500 m away from where you were when you saw it.

If the speed of sound is 320 m/s, calculate how much time passes between the lightning bolt hitting the ground and the sound of thunder traveling to your ears.

Question 3

3.

The color with the highest frequency is:

Purple

Blue

Red

They all have the same

Question 4

4.

The color with the longest wavelength is:

Purple

Blue

Red

They all have the same

Question 5

5.

The color with the highest velocity is:

Purple

Blue

Red

They all have the same