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Our Solar System

Total questions: 25

Worksheet time: 34mins

Name
Class
Date
1.

Earth is a _____ planet.

a)

Jovian

b)

Terrestrial

c)

Jovian

d)

Minor Planet

2.

Jupiter is a ________ planet.

a)

Terrestrial

b)

Minor Planet

c)

Jovian Planet

d)

Asteroid

3.
The rounder the ellipse, the ______________ the eccentricity
a)
lower
b)
higher
4.
The rounder the ellipse, the ______________ the eccentricity
a)
lower
b)
higher
5.
How many planets are in the solar system?
a)
6
b)
7
c)
8
6.
What is the sun?
a)
a moon
b)
a planet
c)
a star
7.
The group of inner planets are known as:
a)
The Terrestrial Planets
b)
The Gas Giants
c)
The Outer Planets
d)
The Hallow Planets
8.
What caused the lighter elements to leave the terrestrial planets?
a)
Gravity from the Gas Giants
b)
Nothing, the lighter elements stayed
c)
Gravity from the Sun
d)
Heat from the Sun
9.

What makes life possible on Earth

a)

atmosphere

b)

right temperature

c)

water

d)

all answers are correct

10.
Why does the Earth orbit the sun? 
a)
The sun pulls Earth toward it.
b)
The sun pulls Earth in an orbit.
c)
The sun pushes Earth away.
d)
Electromagnatism from the sun keeps Earth in orbit.
11.
What happens to orbital speed as a planet is farther from the sun? 
a)
slower
b)
faster
c)
constant
d)
variable
12.

Craters show that planets are formed from smaller objects in space coming together. This occurs through:

a)

Accretion

b)

Fusion

c)

Collapse

d)

Massive Bulge

13.

How did the bits of dust and gas that eventually formed the solar system behave while falling into orbit around each other?

a)

They collided and went spiraling in opposite directions.

b)

They expanded as they were pulled farther apart and eventually cooled.

c)

They created new gases that caused them to cool after interacting with each other.

d)

They ran into each other and stuck together due to gravitational and other forces.

14.
What caused the lighter elements to leave the terrestrial planets?
a)
Gravity from the Gas Giants
b)
Nothing, the lighter elements stayed
c)
Gravity from the Sun
d)
Heat from the Sun
15.

Where would you expect to find a planet that is small, dense, and rocky?

a)

close to the sun

b)

outside of the sun's gravitational pull

c)

far away from the sun

d)

close to the gas planets

16.

Where in our solar system would you expect to find a planet that is mostly made of gas?

a)

very close to the sun

b)

outside of the sun's gravitational pull

c)

very far from the sun

d)

very close to other planets

17.

How does the diameter of the terrestrial and Jovian planets compare?

a)

The diameters of the Jovian planets are much larger.

b)

The diameters of the terrestrial planets are much larger.

c)

All but one of the terrestrial planets have diameters about equal to the diameters of the Jovian planets.

d)

All but one of the Jovian planets have diameters about-equal to the diameters of the terrestrial planets.

18.
The outer planets are called the terrestrial planets.
a)
True
b)
False
19.
An astronomical unit is the average distance
a)
from Earth to Mars.
b)
from Earth to the Sun.
c)
from Earth to the Moon.
d)
from Earth to the asteroid belt.
20.
Earth, Mars, Mercury, and Venus are the 
a)
gas giants.
b)
terrestrial planets.
21.
The outer planets have atmospheres composed mostly of
a)
nitrogen and oxygen.
b)
hydrogen and helium.
c)
water vapor and carbon dioxide.
22.
Earth is the only planet with a wide variety of life because of its
a)
size and shape.
b)
closeness to the Sun.
c)
moderate temperature and liquid water.
23.
What keeps planets in orbit around the Sun?
a)
the Sun's mass
b)
the Sun's period of rotation
c)
the Sun's gravitational force
d)
the Sun's electromagnetic energy
24.
Asteroids "hang out" in our solar system in a place called:
a)
The Kupier Belt
b)
The Oort Cloud
c)
The Planetary Rings
d)
The Asteroid Belt
25.
Asteroids "hang out" in the Asteroid Belt between the planets of:
a)
Earth and Mars
b)
Mercury and Venus
c)
Saturn and Neptune
d)
Mars and Jupiter