Answers2001310 Earth Science Sem 1 - ReevesThe Expanding Universe

The Sun Answers

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Suppose a scientific team is trying to recreate the energy-producing reactions that occur in the Sun. What would they need for the experiments?

A
hydrogen atoms, heat, and pressure
B
hydrogen atoms, helium atoms, heat, pressure, and energy
C
helium atoms and energy
D
helium atoms and hydrogen atoms
2
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Carrie is making a presentation on solar winds. Her notes of the steps that must occur for solar winds to form are below.1. The stream of electrically charged particles collide with gas atoms, causing the latter to give off light.2. The electrically charged particles flow outward in all directions as far as Saturn.3. The stream of electrically charged particles flows outward from the corona.4. The particles of the solar wind flow along lines of the magnetic field.Which shows the correct sequence in the formation of solar winds?

A
1, 2, 3, 4
B
2, 3, 4, 1
C
3, 2, 4, 1
D
4, 2, 1, 3
3

What is the solar process that results in the production of energy?

A
nuclear fission
B
nuclear fusion
C
convection
D
radiation
4

How are Van Allen belts formed?

A
High-energy particles from the Sun get trapped in Earth’s magnetic field.
B
Metals in Earth’s core sink and rise, producing a circular movement of the metals.
C
Particles in solar wind travel along lines of Earth’s magnetic field and collide with gas atoms.
D
Material from the surface of the Sun erupts and forms a loop due to the Sun’s magnetic field.
5

Taden has found a table of the atmospheric layers of the Sun. However, he can’t make out the names of the layers in the chart.What are the names of the Sun’s layers described in columns A, B, and C?

Question illustration
A
A: Corona; B: Photosphere; C: Chromosphere
B
A: Core; B: Chromosphere; C: Photosphere
C
A: Chromosphere; B: Corona; C: Core
D
A: Photosphere; B: Chromosphere; C: Corona
6

What is the temperature of the middle most layer of the Sun's atmosphere?

A
It’s temperature is 5,500 degrees celsius to 6,000 degrees celsius.
B
It’s temperature is 6,000 degrees celsius to 20,000 degrees celsius.
C
It’s temperature is 20,000 degrees celsius to 2,000,000 degrees celsius.
D
It’s temperature is 2,000,000 degrees celsius to 3,000,000 degrees celsius.
7

Dr. Perez is part of a team of researchers who are working on designing and building a probe to study solar flares. What condition must the probe meet?

A
It must be able to travel over 300,000,000 km to reach the Sun.
B
It must be able to withstand a temperature of up to 20 million degrees Celsius.
C
It must be able to penetrate to the core since solar flares originate there.
D
It must be able to remain in the Sun for at least eleven years.
8

What is an astronomical unit?

A
the average distance between planets in the solar system
B
the average distance between the Earth and the moon
C
the approximate diameter of the Sun including its atmosphere
D
the average distance between the Earth and the Sun
9

What are formed when particles in solar wind travel along lines of Earth’s magnetic field and collide with gas atoms?

A
Van Allen belts
B
sunspots
C
auroras
D
solar flares
10

A magnetic field protects Earth from the Sun’s high-energy particles. What two processes are involved in the formation of Earth’s magnetic field?

A
the movement of materials in Earth’s mantle and Earth’s rotation
B
the movement of metals in Earth’s core and Earth’s rotation
C
the movement of solar wind toward Earth and Earth’s revolution
D
the movement of eruptions from the Sun’s surface and Earth’s revolution

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