Question

the electromagnetic spectrum

1. which of the following are not examples of em radiation?

a. visible light waves
b. radio waves
c. sound waves

1. what phenomenon tells us that galaxies are moving away from us?

a. spectroscope shift
b. blue shift
c. red shift

1. why can’t we view the stars with a ground - based x - ray telescope?

a. the earth’s atmosphere blocks x - rays
b. they are too far away
c. there is no such thing as an x - ray telescope

1. what do the fingerprints from spectral lines tell us?

a. the color of the star
b. the elements found in a star
c. if a star has water on it

1. which type of electromagnetic radiation causes sunburn?

a. ultraviolet waves
b. gamma rays
c. visible light waves

name
period

Explanation:

Question 1

EM (electromagnetic) radiation consists of waves like visible light and radio waves, which are part of the electromagnetic spectrum. Sound waves are mechanical waves that require a medium to travel and are not electromagnetic. So option C is correct.

Red shift occurs when galaxies are moving away from us, causing the light they emit to be shifted towards the red end of the spectrum. Blue shift is for objects moving towards us, and spectroscope shift is not the correct term for this phenomenon. So option C is correct.

The Earth's atmosphere blocks X - rays from reaching the ground, which is why ground - based X - ray telescopes can't be used to view stars. Stars being too far away is not the reason for X - ray telescopes not working on the ground, and X - ray telescopes do exist. So option A is correct.

Answer:

C. sound waves

Question 2