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Are you a planets expert?

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

Let's warm up...

Which is the tiniest planet of the Solar System?

a)

Mars

b)

Earth

c)

Pluto

d)

Mercury

2.

In the Solar System, how many planets have rings?

a)

1

b)

4

c)

2

d)

All

3.

Io is the solar system's most volcanic object and it is the beautiful moon of which planet?

a)

Earth

b)

Mars

c)

Venus

d)

Jupiter

4.

What are X-rays?

a)

A type of electromagnetic radiation

b)

The machines used in hospitals for radiographies

c)

A musical band

d)

The light produced during the storms

5.

Do planets emit X-rays by themselves like the Sun does?

a)

Yes, they are very hot

b)

Yes, they have a nuclear bomb inside

c)

No, they do not contain hot gas

d)

No, they rotate too fast

6.

In Jupiter and Saturn we see X-rays because...

a)

There are many hospitals using their X-rays machines there

b)

They burn gas, like our Sun and emit X-rays

c)

The hydrogen in their atmosphere reflects the Sun's X-ray light

d)

They are planets composed mainly of radioactive elements

7.

Which is the main mechanism causing equatorial emission of X-rays in Venus and Mars?

a)

Efervescence

b)

Fluorescence

c)

Delicatessen

d)

Bioluminiscence

8.

Jupiter's auroras are produced by "Charge Exchange"

Which of these is the best explanation?

a)

There are volcanoes in Jupiter which expel colorful particles to the atmosphere

b)

The electrical storms in Jupiter emits lightnings which are visible in X-rays

c)

Molecules in Jupiter poles exchange their protons and electrons to form new molecules, emitting X-rays

d)

Highly charged particles steal electrons from molecules in the atmosphere of Jupiter and then emit X-rays

9.

Saturn rings are bright in X-rays because...

a)

They are made of radioactive material

b)

Many supernova explosions are produced ther

c)

They are very hot, at millions of degrees, and shine bright like the Sun

d)

Solar X-rays strike oxygen atoms in the icy rings and produce fluorescence

10.

Which of these missions can observe (now or in the future) planets in X-rays?

a)

Athena

b)

XMM-Newton

c)

Hubble

d)

Chandra

e)

James Webb