Transcript Which object is a meteor?

OBJECT
What it is made
of
1
Gases and dust
2
Rock
3
Rock
4
rock
Location
where seen
Orbiting the
Sun
Orbiting the
Sun
Entering Earth’s
atmosphere
Lying in a hole
in a field
Which object is a meteor?
• Not Object 1 because it’s made of gas and
dust (and orbiting the Sun) implies a
comet
• Not Object 2 because it is orbiting the Sun
(must be an asteroid)
• Not Object 4 because it is not in space
(meteorite?)
• CORRECT ANSWER: Object 3 (a meteor
is a streak of light produced by friction with
air when an object (rock) from space
enters a planet’s atmosphere)
2. A student created a diagram showing a region of the solar
system
Planet 1
Star
Planet 2
• Option A (kilometer is too small)
• Option B (miles is also too small)
• Option C (Light-year, it would only be a
few light minutes between the planets, too
large a unit to use)
• CORRECT ANSWER: Option D
(Astronomical unit, the distance between
the Earth and the Sun, 150 million Km)
3. A student created a graphic organizer below,
describing the ultimate fate of stars:
Dwarf
stars
Red
giants
Super
giant
Neutron
star
X
• Not Option A (Nebular Star? What the
heck is that?)
• Not Option C (A Binary Star isn’t formed
as a result of a star dying)
• Not Option D (A supernova can be created
when a star dies, but nothing is left -like
with a the other options listed)
• CORRECT ANSWER: Option B must be
correct. A Black Hole can form at the end
of a star’s life cycle.
4. A cross-section of
the Sun is shown to
the left:
Which energy-releasing
process is happening at
The region of the Sun
Indicated by the arrow?
• Option B is the breaking apart of
atoms (the opposite of what happens
in stars)
• Option C is not even a real thing
• Option D is not a real thing either
• CORRECT ANSWER: Option A
nuclear fusion is the process of atoms
fusing together and releasing HUGE
amounts of energy.
Distance
SUN
EARTH
• It’s not A because it only takes 8 light
minutes to get to Earth from the Sun, a
light-year is too far!
• It’s not C because a kilometer is way too
short…
• It’s not D because the distance is only 93
MILLION miles, not 1 trillion miles.
• CORRECT ANSWER: B 1 astronomical
unit is defined as the average distance
between the Earth and the Sun.
6. Study the HR
Diagram on the
right.
Which of the
following is
TRUE
according to
the diagram?
A
B
C
D
The hottest stars are red stars.
White dwarfs are brighter [more luminous] than
supergiants.
Blue-white stars are the coldest stars.
Red-orange giants are bright, cool stars.
7. An object composed mainly of ice is
orbiting the Sun in an elliptical path.
This object is most likely A. a planet
B. an asteroid
C. a meteor
D. a comet
Even I know the
answer to this one!
8. Which of the following
keeps the planets in our
solar system in orbit
around the Sun?
A
B
C
D
atmospheric
pressure
electromagnetic
energy
gravitational force
thermal energy
I should know
the answer to
this one…
9. Whether a star would ultimately
become a White Dwarf, or a
Supergiant, would depend on its’...
A surface temperature
B distance from the Sun
C original mass
D color and spectral type
If I were a star, I’d
be a super giant!
10. The process shown below occurs in
all stars:
This process is accompanied by a...
A
production of extremely massive particles
B
release of a great amount of energy
C
breakdown of very heavy nuclei
D
loss of a huge amount of pressure