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Unit 3.2 and 3.3 Review

Total questions: 59

Worksheet time: 50mins

Name
Class
Date
1.

What's the difference between comets and asteroids?

a)

Asteroids are made of metal and rock, while Comets are ice and rock

b)

Asteroids are made of ice and rock, while Comets are made of metals and rock

c)

There is no difference

d)

Asteroids are made of stardust, while Comets are made up of water

2.

Where do comets not come from?

a)

Kuiper belt

b)

Oort cloud

c)

Past Neptune

d)

Asteroid Belt

3.

How does the orbit of a comet compare to the orbit of a planet?

a)

Comets have a shorter rounder orbit than a planet

b)

Comets have a longer more elliptical like orbit than a planet

c)

They have the same orbit

d)

Comets do not have an orbit, they are all random

4.

What's the difference between meteoroid, meteor, and meteorite?

a)

Meteoroids are in space, meteors are streaks of light in the sky, and a meteorite is the meteors that land.

b)

Meteoroids are huge, Meteors are the pieces that land, and Meteorites are shooting stars

c)

There are no differences

d)

Meteoroids are small, Meteors are another name for comets, and Meteorites are shooting stars

5.

What is the composition of most Comets?

a)

Rock, Ice, Salt, Carbon

b)

Rock, Ice, Magma, Frozen Gases

c)

Ice, Dust, Rock, Frozen Gases

d)

Ice, Dust, Rock, Soil

6.

What causes Meteoroids to burst into flames upon entering the Earth's Atmosphere?

a)

They are made out of flammable materials

b)

They cannot handle the pressure of Earth

c)

They do not burst into flames, they only reflect the Sun's light

d)

Friction from the Earths atmosphere

7.

An object described as a ball of dust, ice, and gases, and usually has a tail is called an ______

a)

Asteroid

b)

Meteor

c)

Meteorite

d)

Comet

8.

What do we call the path of an object that revolves around another object in space?

a)

Gravitational pull

b)

Orbit

c)

Free fall

d)

Spinning

9.

What is the invisible force that causes massive objects to pull other objects towards them?

a)

Orbit

b)

Gravitational Pull

c)

Might

d)

Force

10.
The belt between Mars and Jupiter
a)
Comets
b)
Asteroids
c)
Meteors
d)
Stars
11.

A meteorite is DIFFERENT from a comet mainly because

a)

has a tail of ice and gas

b)

is found in orbit between Jupiter and Mars

c)

enters the Earth's atmoshere

d)

has a nucleus made of rock and snow.

12.

What causes days and nights on earth?

a)

Revolution

b)

Rotation

13.

What causes years on Earth?

a)

Revolution

b)

Rotation

14.

Planets that are small, close to the sun, and rocky are....

a)

Jovian

b)

Gas Giants

c)

Terrestrial

d)

Dwarf

15.

Planets that are large, mostly atmosphere, and farther from the earth are...

a)

Rocky

b)

Dwarf

c)

Jovian

d)

Terrestrial

16.

An object that orbits a planet

a)

Sun

b)

Asteroid

c)

Moon

d)

Comet

17.

These planets have more moons

a)

Jovian

b)

Terrestrial

c)

Dwarf

d)

Rocky

18.

What is the part of the comet that is always present as it orbits the sun?

a)

Tail

b)

Nucleus

c)

Coma

d)

Shooting star

19.

Which of the following are the Jovian Planets?

a)

Earth, Jupiter, Uranus, Mars

b)

Mars, Mercury, Venus, Earth

c)

Jupiter, Uranus, Neptune, Saturn

d)

Jupiter, Saturn, Uranus, Pluto

20.

Whish of the following are the Terrestrial Planets

a)

Ceres, Eris, Mercury, Mars

b)

Mars, Earth, Venus, Mercury

c)

Mercury, Venus, Uranus, Mars

d)

Pluto, Jupiter, Earth, Venus

21.

Which fact about our solar system is true?

a)

It is the center of our galaxy.

b)

Earth is at its center.

c)

It is our sun and everything that orbits it.

d)

It is going to collapse into our sun.

22.
Our galaxy is called the
a)
Earth Nebula
b)
The Hubble Galaxy
c)
The Milky Way
d)
The Snickers
23.
Distance measurement used by astronomers for distant objects.
a)
Kilometers
b)
Light Years
c)
Miles
d)
Light Seconds
24.

The moon is a

a)

Natural Sattelite

b)

Artificial Sattelite

c)

A and B only

d)

None of the above

25.

Two factors effecting the strength of gravity between 2 objects are...

a)

weight and mass

b)

distance and weight

c)

mass and matter

d)

mass and distance

26.

WHAT IS THE CORRECT ORDER FROM THE SUN FOR THE LAST FOUR PLANETS?

a)

NEPTUNE, URANUS, SATURN, JUPITER

b)

URANUS, SATURN, JUPITER, NEPTUNE

c)

JUPITER, URANUS, NEPTUNE, MARS

d)

JUPITER, SATURN, URANUS, NEPTUNE

27.
Gravity attracts all objects towards one another.
a)
False
b)
True
c)
It depends
28.
A person would weigh more on Jupiter than on the Earth because . . .
a)
Jupiter has more mass, and therefore more gravity
b)
Jupiter has less mass, and therefore more gravity
c)
Jupiter has more mass, and therefore less gravity
d)
Jupiter has less mass and therefore less gravity
29.
As the distance between 2 objects increases, what happens to gravitational force?
a)
increases
b)
decreases
c)
stays the same
d)
i don't know
30.
As mass increases, what happens to gravitational force?
a)
increases
b)
decreases
c)
stays the same
d)
i don't know
31.
What keeps a planet moving on its path around the sun
a)
gravity & inertia
b)
heat & pressure
c)
inertia & pressure
d)
gravity & heat
32.
What is an astronomical unit?
a)
distance between the moon and earth
b)
distance between the earth and pluto
c)
distance between the earth and sun
d)
distance between NJ and Cali
33.
The closer a planet is to the sun...
a)
the faster it travels
b)
the slower it travels
34.
What is a common characteristic of the inner  planets?
a)
Gaseous
b)
Distance between them is longer
c)
Rings
d)
Distance between them is shorter
35.
A force of attraction between any two objects is called _____________.
a)
static electricity 
b)
rotation
c)
gravity
d)
orbit
36.
Which of the following is a common characteristic of outer planets?
a)
have rings
b)
shorter years
c)
terrestrial
d)
less than 5 satellites
37.
All planets have the following characteristics EXCEPT
a)
They rotate
b)
They revolve
c)
They have an atmosphere
d)
They have elliptical orbits
38.
Describe an asteroids origin and orbit
a)
Between Mars and Jupiter, long elliptical orbit
b)
Between Mars and Jupiter, circular orbit
c)
Another galaxy, long elliptical orbit
d)
Oort cloud, long elliptical orbit
39.
Describe a comets origin and orbit.
a)
Between Mars and Jupiter, long-elliptical orbit
b)
Oort cloud or Kuiper belt, circular orbit similar to a planet
c)
Another galaxy, long-elliptical orbit
d)
Oort cloud or Kuiper belt, long elliptical orbit
40.
The tail of a comet usually faces
a)
toward the sun
b)
toward the Earth
c)
away from the Sun
d)
away from the Earth
41.

The Sun takes up 99.8% of the Solar System

a)

True

b)

False

42.

The distance light can travel in one year is ______________

a)

15,000 kilometers

b)

1 light-year

c)

15 Astronomical Units

d)

6,000 miles

43.

Which unit of measurement is used to measure distances within our solar system?

a)

inches

b)

kilometers

c)

miles

d)

Astronomical units

44.

What unit of measurement is used to calculate distance in our universe?

a)

astronomical units

b)

kilometers

c)

light years

d)

parsecs

45.

Why do we use light years and astronomical units to measure distances in space?

a)

Scientists want to sound smart.

b)

Hubble discovered these units and wanted to use them.

c)

Space is too small to use km, it wouldn't make sense.

d)

Space is too big, vast, enormous to use traditional units, like miles.

46.

As distance between two objects increases, the pull of gravity between them...

a)

increases.

b)

decreases.

c)

stays the same.

d)

has no effect.

47.

If an object's mass increases, its gravitational force...

a)

Increases

b)

Decreases

c)

Stays the same

d)

Disappears

48.

Which object in our solar system has the strongest gravitational force?

A
B
C
D
E
F
G
H
I
49.

Which of the following is true about dwarf planets?

a)

Their gravity is stronger than planets since they are larger

b)

They still have asteroids in their path around the Sun

c)

Their gravity is so strong that it shaped it into a square

d)

They revolve around planets not the Sun

50.

Place these objects in order from largest (1) to smallest (5).

a)

Planets

b)

Solar system

c)

Galaxies

d)

Universe

e)

Us

1)
2)
3)
4)
5)
51.

If a star is 100 light years away form Earth, which of the following is TRUE?

a)

It would take us 100 years to travel to the star

b)

The star is 100 trillion miles away from Earth

c)

The light from that star takes 100 years to reach us

d)

The star is dangerously close to Earth

52.

A measure of how much matter an object has is--

a)

weight

b)

gravity

c)

mass

d)

volume

53.
What is the definition of "weight"?
a)
measure of the force of gravity on your body
b)
the time it takes to get on a ride 
c)
the amount of matter in an object
d)
the size of an object
54.

On which celestial object (outer space) would your mass be the greatest?

a)

Earth

b)

Jupiter

c)

Sun

d)

Your mass doesn't change on different celestial objects

55.
On which celestial object would you weigh the most?
a)
Earth
b)
Jupiter
c)
Sun
d)
You would weigh the same on all celestial objects
56.
Why would you weigh less on the moon compared to Earth?
a)
less air
b)
less sunlight
c)
more gravitational pull
d)
less gravitational pull
57.
Which model has greater gravitational attraction (if any)
a)
Model A
b)
Model B
c)
Both Model A and Model B (same gravity)
58.
Which system has the greater gravitational attraction between the two objects (if any)?
a)
System A
b)
System B
c)
Same gravitational attraction fro System A and System B
59.

Differences in the moon's and sun's pull on different sides of the Earth cause _________.

a)

gravity

b)

thunderstorms

c)

tides

d)

Earth's orbit

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