J1V2C9-11 Revision

Which of the following is a star?

• Mercury

• Moon

• Saturn

• Sun

The Sun is a ___ celestial body.

• terrestrial

• aqueous

• gaseous

Which layer of the Sun is the hottest?

• Nuclear reaction zone

• Radiative zone

• Convection zone

Which part of the Sun’s atmosphere we are actually seeing?

• Photosphere

• Chromosphere

• Corona

Two layers of the Sun’s atmosphere is observable during solar eclipse.

• photosphere

• chromosphere

• corona

What is the large bright feature extending from the Sun's surface?

• Sunspots

• Solar flare

• Prominence

What is the effect of solar wind to the Earth?

• It will disturbs telecommunication signals

• It will interfere with communications in space shuttles and threated the safety of astronauts

• Sunburn caused by the UV light from the Sun

• It can formed beautiful Aurora.

Which of the following is a planet?

• Moon

• Mercury

• Pluto

• Halley's comet

Which celestial body has the largest mass in the Solar system?

• Earth

• Jupiter

• Sun

• Neptune

Which planet is closest to the Sun?

• Venus

• Mars

• Mercury

• Earth