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9.1 activities of the sun that affect earth

Total questions: 20

Worksheet time: 12mins

Name
Class
Date
1.
The center of the sun is called the ______
a)
convective zone
b)
radiative zone
c)
the core
d)
chromosphere
2.
It's loops are seen extending from the photosphere. 
a)
Flares
b)
Corona
c)
Prominences
3.
What is A?
a)
photosphere
b)
Core
c)
prominence
d)
flares 
4.
What is F?
a)
sun spots
b)
filaments 
c)
prominence
d)
flare
5.

____________are areas of gas on the sun that are cooler than the gas around them.

a)

Solar Wind

b)

Solar Flares

c)

Sunspots

d)

Core

6.
a brief burst of energy from the sun’s photosphere
a)
corona
b)
solar flare
c)
solar wind
d)
photosphere
7.
What protects life on Earth from gamma rays, X rays, and particles emitted by the Sun?
a)
The ozone layer in the stratosphere
b)
The ionosphere
c)
The magnetosphere (Earth's magnetic field)
d)
Clouds
8.
When prominences erupt into space releasing gas and energy we call this: 
a)
solar winds
b)
coronal outburst
c)
solar flares
d)
auroras
9.

The surface of the sun is called ______________________.

a)

photosphere

b)

chromosphere

c)

sunspots

d)

flares

10.

What is a solar wind?

a)

The surface of the sun

b)

Darker, cooler areas of the sun

c)

Outer layer of the sun

d)

Constant flow of tiny, fast, electrically charged particles

11.

Coronal Mass Ejections "CME's"

a)

massive emissions of electrically charged material

b)

Explosions that occur when multiple loops suddenly connect

c)

hydrogen and nitrogen together

d)

Sun spots

12.

How does the Sun's Corona affect Earth

a)

It can blind people during lunar eclipses

b)

It doesn't affect Earth.

c)

The Coronal Mass Ejections (CME's) throw particles into space which cause solar winds. Leads to Auroras

d)

Leads to colder sun spots.

13.
The number of sunspots on the sun varies in a cycle that is about how long?
a)
6-8 years
b)
10-11 years
c)
12-15 years
d)
365 days
14.

photosphere

a)

outermost surface of the sun emitting light we see; outermost layer of sun's atmosphere visible only to us during solar eclipse

b)

visible layer of the sun emitting light we see; lowest layer of sun's atmosphere

c)

hottest part of the sun; produces energy through nuclear fusion

15.

Solar flares

a)

cause Earth's auroras at the poles.

b)

can cause damage to the ISS and satellites.

c)

increase charged particles in gases creating magnetic storms in Earth's atmosphere.

d)

can disrupt radio, telephone and television signals.

16.

Can we land on the sun?

a)

Yes, If we use metal suits

b)

No, It doesn't have a solid surface

c)

Yes, but we can't stay very long

d)

No, It's against the law.

17.
Can only be seen during a solar eclipse; outer layer; looks like a white halo
a)
corona
b)
photosphere
c)
core
d)
fusion
18.

Which of the following is a effect of the sun?

a)

Disrupts radio Signals

b)

Blackouts

c)

Lightning

d)

Earthquakes

19.

What protects us from the Sun's radiation

a)

Moon

b)

Magnetic Field

c)

Asteroid Belt

d)

Atmosphere

20.
Which of the following is NOT a solar ejection?
a)
solar flare
b)
prominence
c)
sunspot
d)
coronal mass ejection