Answers25-26 Dally -- Earth and Space Science 4th 9 Weeks BLDGUnit Test

Unit Test — Unit test Answers

25 verified answers4 views
1
Free Preview

Which type of star system has the most stars?

A
open cluster
B
globular cluster
C
eclipsing binary
D
binary star system
2
Free Preview

Which planet is terrestrial?

A
Jupiter
B
Mars
C
Saturn
D
Uranus
3

Which phrase describes the composition of the outer planets?

A
are gaseous
B
contain water
C
have high densities
D
are made mostly of liquid
4

Which correctly lists three planets that have rings?

A
Jupiter, Mars, Saturn
B
Mars, Jupiter, Mercury
C
Mercury, Mars, Venus
D
Neptune, Uranus, Jupiter
5

How is the moon illuminated?

A
It produces its own light.
B
It reflects light from the Sun.
C
It transforms energy into light.
D
It absorbs light from the Earth.
6

According to the big bang theory, which statement is accurate about how the universe came to be?

A
It expanded slowly.
B
It gradually warmed.
C
Stars and galaxies formed.
D
Atoms such as hydrogen were destroyed.
7

Which object(s) formed last in our solar system?

A
the Sun
B
the solar nebula
C
the inner planets
D
the planetesimals
8

About how long does it take Earth to complete one revolution around the Sun?

A
1 year
B
14 days
C
24 hours
D
27.3 days
9

What is some of the evidence used by Galileo to support Copernicus’s model and disprove Aristotle and Ptolemy’s?

A
Each planet spins in an epicycle.
B
Planets appear to move backward.
C
Jupiter has moons orbiting it.
D
The religious and cultural beliefs supported this model.
10

Look at the diagram of the moon and three different paths that it could take.

Question illustration
A
the path of the moon toward the Sun
B
the path of the moon’s orbit around Earth
C
the path the moon would take if it had a larger mass than the Sun
D
the path the moon would take if there was no force of Earth’s gravity
11

What is a nebula?

A
the core of a massive star
B
a cloud of gas and dust in space
C
a swirling disk with a lot of gravity
D
the debris remaining after a supernova
12

When two objects are near each other, how would increasing one object’s mass affect it?

A
The shape of the object would change.
B
The weight of the object would decrease.
C
The gravitational force of the object would increase.
D
The mass of the object would be stronger than gravity.
13

What are the two main types of star clusters?

A
binary and wobbling
B
eclipsing and binary
C
globular and eclipsing
D
open and globular
14

What is released through nuclear fusion in stars?

A
energy
B
gas
C
mass
D
pressure
15

Which statement explains how planets move in orbit as supported by Newton’s first law of motion?

A
Planets can change the direction of their own orbital path.
B
Planets can change orbits due to their inertia.
C
Planets in motion will have a constant speed unless acted on by an outside force.
D
Planets with a greater mass will orbit more quickly than smaller planets.
16

Which characteristic is common to all inner planets?

A
rings
B
moons
C
rocky surfaces
D
slow revolutions
17

What will a medium-mass star become at the very end of its life cycle?

A
a red giant
B
a black hole
C
a black dwarf
D
a neutron star
18

Which planet revolves slowly around the Sun, has rings, and is known for its Great Red Spot?

A
Jupiter
B
Mars
C
Neptune
D
Saturn
19

How was Aristotle’s model similar to Ptolemy’s model?

A
Both models stated that the planets rotate on their axes.
B
Both models stated that Earth is the center of the system around which other objects orbit.
C
Both models stated that the planets and objects in the solar system have small orbits called epicycles.
D
Both models stated that the Sun is the center of the system around which objects have elliptical orbits.
20

Which two characteristics are used to classify stars on the Hertzsprung-Russell diagram?

A
size and density
B
density and composition
C
composition and temperature
D
temperature and absolute brightness

Did you find these answers helpful?

More from this Course

Quiz
25 verified answers

Unit Test

RC
25 verified answers

Cumulative Exam

Quiz
50 verified answers

Cumulative Exam