F3 CHAPTER 9 SPACE WEATHER

The following information shows the characteristics of a phenomenon which occurs on the surface of the Sun. What is this phenomenon?

• Sunspots

• Solar flares

• Prominence

• Solar wind

Diagram 1 shows the structure of the Sun. Which of the following represents P, Q and R?

• P: Corona, Q: Photosphere, R: Chromosphere

• P: Corona, Q: Chromosphere, R: Photosphere

• P: Photosphere, Q: Corona, R: Chromosphere

• P: Chromosphere, Q: Corona, R: Photosphere

Which of the following matches is correct?

• Part of the Sun: Radiation Zone, Phenomenon: Prominence

• Part of the Sun: Corona, Phenomenon: Aurora

• Part of the Sun: Photosphere, Phenomenon: Sunspots

• Part of the Sun: Core, Phenomenon: Solar flare

What will happen if the Earth is not protected by its magnetosphere?

• Formation of aurora

• Increase in the potential of electric power line

• Disruption in the telecommunication system and navigation system

• The occurrence of tides

What is brought about by the solar wind?

I. High speed particles

II. Space dust and debris

III. High frequency sound

IV. Interplanetary magnetic field

• I and II

• III and IV

• II and III

• I and IV

Which of the following phenomena of the Sun probably occur at the same time?

I. Coronal mass ejection

II. Solar flares

III. Solar wind

IV. Prominence

• I and II

• III and IV

• II and III

• I and IV

The following information describes phenomenon Y which occurs at the Earth's poles.

• Aurora

• Solar wind

• Prominence

• Sunspots

Diagram 2 shows two space probes used to observe the Sun. The data collected is used to

• determine the structure of the Sun.

• estimate the size of the Sun.

• determine the position of the Sun with other planets.

• forecast the occurrence of the coronal mass ejections on the Sun.

What will happen to the Earth when prominences, solar flares or sunspots occur?

• The strength of magnetic field on the Earth decreases.

• The Earth becomes brighter.

• The temperature on Earth rises.

• The atmosphere of the Earth becomes thin.