Question

Match what is seen through a telescope in Column A with the information that is learned from it in Column B. Column A 1. the visible light spectrum emitted by a star : the visible light spectrum emitted by a star 2. the brightness of a star : the brightness of a star 3. the color of a star : the color of a star Column B a. the distance between the star and Earth b. the chemical composition of the star c. the temperature of the star

Answer 1

Answer:

1. the visible light spectrum emitted by a star (1) ⇔ the chemical composition of the star (b)

2. the brightness of a star (2) ⇔ the distance between the star and Earth (a)

3. the color of a star (3) ⇔ the temperature of the star (c)

Explanation:

Answer 2

Ans: The matching is as follows:
1. the visible light spectrum emitted by a star (1) ⇔ the chemical composition of the star (b)
2. the brightness of a star (2) ⇔ the distance between the star and Earth (a)
3. the color of a star (3) ⇔ the temperature of the star (c)

Explanation:
The brighter the star is, the closer it will be from the Earth. Hence, the brightness of a star depends upon the distance between the star and the Earth. The color of a star tells you how cool or hot it is. Blue colored stars are cool while red colored stars are hot (like sun). Hence, the color of star tells us its temperature. Stars emit different kinds of radiations (which we see in the radiation spectrum). That radiation spectrum tells us the chemical composition of the star.

NOTE: Do not confuse a star with a planet! (most students make this mistake)