Asteroids, Comets and Meteors

Where do long-period comets originate?

• Kuiper's Belt

• Moon

• Oort Cloud

• Sun

Which is more likely a “frequent visitor” of the Earth?

• Asteroids

• Comets

• Moon

• Planet

Asteroids are sometimes called ___________.

• Constellation

• Meteor Shower

• Moon

• Planetoid

When is tail of a Comet visible?

• As a comet moves.

• As a comet gets closer to the sun

• As the comet revolves around the sun

• As the comet revolves around the Earth

Most of the asteroids orbit around the sun between the orbits of _______.

• Biyo and Venus

• Earth and Mars

• Mars and Jupiter

• Mercury and Neptune

When Halley’s Comet last appeared in 1986 and its periodic appearance is

every 75-79 years, when will be its next appearance near Earth?

• 2046-2050

• 2052-2062

• 2061-2065

• 2071-2076

Which of the following are the parts of a comet?

• head, body, tail

• head, electron, nucleus

• nucleus, coma, tail

• nucleus, proton, electron

Why do meteors seem to originate from only one point in the sky during a meteor shower?

• Comets travel away from the sun.

• Meteors survive burning in the atmosphere.

• Meteoroids are travelling in perpendicular paths.

• Meteoroids are traveling in parallel paths at the same velocity.

Which of the following will most likely happen when a comet or asteroid hits the Earth?

• No impact craters will be formed.

• Impact will be negligible to cause end of the world.

• Plants and animals grow abundantly in the crash site.

• Plants and animals will be affect near or on the crash site.

What do scientists think may have killed the dinosaurs?

• Because the tail of a comet passing near Earth.

• The impact of huge asteroid that hits the Earth.

• The impact of meteorite that landed in the ocean

• They are frighten caused by seeing meteors in the sky