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The Universe: Stars & EMS

Total questions: 46

Worksheet time: 37mins

Name
Class
Date
1.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
2.
Select the correct order of waves on the EMS 
a)
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
b)
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
c)
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
d)
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
3.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
4.
Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy
a)
Radio waves
b)
Ultraviolet Rays
c)
Gamma Rays
d)
X-rays
5.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
6.
As the frequency of an electromagnetic wave increases, the amount of energy in that wave...
a)
increases.
b)
decreases.
c)
stays the same.
7.
The height of the wave is known as the _____________.
a)
amplitude
b)
crest
c)
trough
d)
wavelength
8.
The blue section of the wave is measuring _________________.
a)
wavelength
b)
crest
c)
trough
d)
amplitude 
9.

Which of the following has the shortest wavelength?

a)

microwaves

b)

UV rays

c)

Infrared

d)

the color blue

10.

Which of the following has the most energy?

a)

Red

b)

Blue

c)

Green

d)

Violet

11.

Which of the following has the most energy?

a)

X-rays

b)

The color green

c)

Microwaves

d)

ultraviolet

12.

Which of the following has the longest wavelength?

a)

Infrared

b)

The color Indigo

c)

gamma rays

d)

TV

13.

Which of the following has the least amount of energy?

a)

UV rays

b)

The color yellow

c)

infrared

d)

Gamma rays

14.

Which of the following has the shortest wavelength?

a)

Gamma rays

b)

The color blue

c)

AM radio

d)

Infrared

15.

Which of the following has the lowest energy?

a)

The color yellow

b)

The color blue

c)

The color indigo

d)

The color orange

16.

Which of the following has the lowest frequency?

a)

The color blue

b)

The color green

c)

The color yellow

d)

The color violet

17.

Most stars are?

a)

Red giants

b)

White dwarfs

c)

Main sequence

d)

Supergiants

18.

If our Sun died out, what would it become?

a)

Pulsar

b)

White dwarf

c)

Black hole

d)

Neutron Star

19.

What type of stars are the hottest?

a)

yellow

b)

white

c)

red

d)

blue

20.

What is the main factor that determines what a star will become?

a)

mass

b)

brightness

c)

temperature

d)

color

21.

Our solar system is part of this galaxy.

a)

Betelheuse

b)

Milkee Whey

c)

Alpha Centauri

d)

Milky Way

22.

Where are stars "born"?

a)

from the sun

b)

in a nebula

c)

in a supernova

d)

in a white dwarf

23.

The brightness of a star depends on?

a)

its size

b)

its temperature

c)

its distance from earth

d)

All of the options

24.

All stars____?

a)

Reflect light from the Sun

b)

Produce their own light

c)

wander off their star path

d)

are cold

25.

What type of star is our Sun?

a)

A very hot star

b)

an average star

c)

a cool star

d)

It's not a star.

26.

Stars are made mostly

of which two elements?

a)

Hydrogen and helium

b)

Hydrogen and oxygen

c)

Nitrogen and helium

d)

Nitrogen and oxygen

27.

Which is the stage where a massive star

explodes and releases a lot of energy?

a)

Red supergiant

b)

Supernova

c)

Black hole

d)

Main sequence

28.

An early stage in the formation

of a star before nuclear synthesis

begins is called a(n)

a)

Protostar

b)

Supernova

c)

Neutron star

d)

Black hole

29.

During which phase does the core of a

massive star have so much gravity that

even light can’t escape?

a)

Supernova

b)

Black hole

c)

White dwarf

d)

Neutron star

30.
What are the three shapes galaxies take?
a)
spiral, circular, elliptical
b)
elliptical, irregular, pancake shaped
c)
spiral, elliptical, irregular
d)
irregular spiral, flat
31.

A Group of stars, and or star systems, star clusters, dust and gas held together by gravity is known as:

a)

Universe

b)

Galaxy

c)

Solar System

d)

Planet

32.

How many main sequence stars is in our solar system?

a)

2

b)

8

c)

1

d)

None

33.

Which of these correctly identifies different objects in the universe according to their size and composition?

a)

A nebula is larger than a galaxy

b)

a solar system contains many stars

c)

a galaxy contains many solar systems

d)

a galaxy is bigger than a universe

34.
In the diagram given, what happens as we move to the left?
a)
Stars Get Larger
b)
Stars get Colder
c)
Stars get hotter
35.
Which star is the coldest?
a)
Yellow Star
b)
Red Star
c)
Orange Star
d)
Blue Star
36.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
37.
What is found on the x axis of an H-R diagram?
a)
Luminosity
(or brightness)
b)
Temperature
c)
Star Size
d)
Distance
38.
As you move from the bottom to the top of the H R diagram the __________ changes.
a)
Temperature
b)
Luminosity or Brightness
39.
Which spectral class does our star, the sun, belong to?
a)
M
b)
K
c)
G
d)
F
40.
What determines the color of a star? 
a)
It's size
b)
It's temperature
c)
It's composition
d)
They are all the same color 
41.

These are composed mainly of rock and metal.

a)

comets and stars

b)

stars and meteors

c)

asteroid and meteors

d)

comets and asteroid

42.

I am a rock entering a planet's atmosphere.

a)

meteor

b)

moon

c)

asteroid

d)

comet

43.
What do comets, asteroids and meteors all have in common?
a)
They all are made of ice
b)
They all hit Earth's surface
c)
They all orbit the sun
d)
They have nothing in common
44.

A meteor when it burns in the atmosphere is also known as a ____.

a)

rock

b)

shooting star

c)

ball of ice

45.

Check all the following statements that are TRUE

a)

Asteroids are made of rock and metal

b)

Comets are made of ice, rock, and dust

c)

Comets can be found in the Oort Cloud

d)

All the above

46.

A meteoroid is found

a)

in Space

b)

entering earths atmosphere

c)

impacting earths surface

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