Deck 53: Solar Activity

Question 1

Sunspots appear dark because

A) they have a different composition than the surrounding surface of the Sun.
B) they are holes in the photosphere of the Sun.
C) they are cooler than the surrounding surface of the Sun.
D) light is prevented from escaping because of the strong magnetic field.

Answer 1

they are cooler than the surrounding surface of the Sun.

Question 2

The sunspot cycle going from low point to low point in its cycle takes about ______.

A) 7 yrs
B) 25 yrs
C) 11 yrs
D) 3 yrs

Answer 2

11 yrs

Question 3

Sunspots are a ________ storm on the sun.

A) magnetic
B) wind
C) tornado
D) hurricane

Answer 3

magnetic

Question 4

Huge plumes in the lower chromosphere of the sun following magnetic lines are called _____.

A) flares
B) spicules
C) prominences
D) sunspots

Question 5

A huge gas cloud thrown from the sun is called a _____.

Question 6

A high energy ______ is particularly dangerous to astronauts outside the Earth's magnetic field.

Question 7

Sunspots can be 4500 K.

Question 8

A flare is exactly the same as a sunspot.