AnswersOC27 EarthSpace Sci-2001310-S2-NelsonUnit 9 Test

Unit 9 Test Answers

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1
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Which planet is terrestrial?

A
Jupiter
B
Mars
C
Saturn
D
Uranus
2
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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.
3

Which does a reference point provide?

A
a position from which to measure future distance
B
a set of standard units for measuring displacement
C
a standard method for evaluating variables
D
a method for determining the speed of an object
4

Why does the same side of the Moon always face Earth?

A
The Moon no longer rotates on its axis.
B
Earth’s gravity pulls more on one side of the Moon than the other.
C
The Sun’s gravity keeps the Moon in the same position next to Earth.
D
It takes the same amount of time for the Moon to rotate as it does to revolve.
5

A toy car is placed at 0 on a number line.It moves 9 cm to the left, then 4 cm to the right, and then 6 cm to the left. What is the total distance the toy car traveled?

Question illustration
A
1 cm
B
5 cm
C
11 cm
D
19 cm
6

Suppose the Sun suddenly no longer had gravity. Which of these would most likely happen?

A
Earth would fly off into space.
B
Earth would be pulled into the Sun.
C
The orbit of Earth would get larger.
D
The orbit of Earth would get smaller.
7

What occurs when the moon blocks the view of the Sun?

A
neap tide
B
spring tide
C
solar eclipse
D
lunar eclipse
8

Which is capable of housing astronauts while they conduct research?

A
a rover
B
a satellite
C
a space station
D
a space observatory
9

Which technology can observe electromagnetic radiation and avoid light pollution to allow for exploration beyond our solar system?

A
space probe
B
space station
C
space shuttle
D
space observatory
10

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
11

Andrew watched the Moon rise exactly at sunset. Which statement describes what Andrew was doing at that moment?

A
He was facing east and saw a full moon.
B
He was facing west and saw a full moon.
C
He was facing east and saw a new moon.
D
He was facing west and saw a new moon.
12

Emmanuel drew this model of a new moon.

Question illustration
A
The model should show the lighted half on the left because the lighted part is decreasing each day.
B
The model should show only a lighted crescent because the lighted part is just beginning to be visible.
C
The model should show the entire circle shaded because the lighted part is no longer visible from Earth.
D
The model should show the entire circle lighted because the lighted part is now completely visible from Earth.
13

In what way has technology used aboard the International Space Station benefited humans back on Earth?

A
Robotic arms used aboard the ISS are now used in delicate surgeries on Earth.
B
Air purifiers developed for the ISS now provide cleaner air for humans on Earth.
C
Software created for the ISS was adapted and is now used to conduct brain surgery on Earth.
D
Research conducted on the ISS crew about heart disease is now used to help patients on Earth.
14

Olivia places her pet frog on a line to observe the frog’s motion. The line is divided into sections that measure 1 centimeter each. The frog begins at 0, moves 18 centimeters forward, moves 6 centimeters backward, and then 12 centimeters backward.What is the frog’s displacement?

A
0
B
6
C
18
D
36
15

What was the purpose of the Apollo program?

A
to put a man in orbit
B
to launch a spy satellite
C
to launch a space station
D
to put man on the moon
16

Which event occurs during high tide?

A
All of Earth’s ocean levels rise.
B
The moon’s orbit is closer to Earth.
C
The gravity of the Sun and moon cause the Earth’s crust and water to bulge.
D
Earth’s crust and water are being pulled in opposite directions by the Sun and moon.
17

What is most often given a value of zero to describe an object’s position on a straight line?

A
displacement
B
reference point
C
distance
D
ending location
18

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.
19

How did Galileo increase public support for Copernicus’s model?

A
by publishing his work in Italian
B
by using data collected by Tycho Brahe
C
by explaining why planets appear to move backward
D
by arguing that Earth’s rotation makes objects appear to move in the sky
20

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.

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