AnswersOC27 EarthSpace Sci-2001310-S2-NelsonUnit Test

Unit 6: Test Answers

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Which is capable of housing astronauts while they conduct research?

A
a rover
B
a satellite
C
a space station
D
a space observatory
22
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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
23

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
24

Which planet is terrestrial?

A
Jupiter
B
Mars
C
Saturn
D
Uranus
25

Alisha organizes her data about the element lead into a table.Which did Alisha place in the wrong column?

Question illustration
A
Density: 11.34 g/cm3
B
Soft
C
Solid at room temperature
D
Malleable
26

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.
27

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
28

Which statement best describes how waves carry energy?

A
Energy moves from one place to another through the wave.
B
Energy increases as it moves through the wave.
C
Energy is completely consumed by the beginning of the wave.
D
Energy builds through the wave and is released at the end.
29

Which types of waves requires matter to carry energy?

A
electromagnetic waves only
B
mechanical waves only
C
electromagnetic and mechanical waves
D
longitudinal and electromagnetic waves
30

Which part of the electromagnetic spectrum is necessary for the sense of sight in humans?

A
radio waves
B
gamma rays
C
infrared light
D
visible light
31

If humans cannot see ultraviolet waves, how can ultraviolet light be used to gather evidence of a crime?

A
Ultraviolet light detects the presence of radioactive substances.
B
Ultraviolet light shows cold areas as blue and warm areas as red.
C
Ultraviolet light causes substances to fluoresce and give off visible light.
D
Ultraviolet light transmits information to AM and FM radio receivers.
32

Atomic bombs send out a shock wave when they are detonated. This occurs because the bomb’s detonation superheats the air particles nearby, which cause them to bump into other air particles that further the wave.Which statement can most likely be made about the shock waves of atomic bombs?

A
They are mechanical waves.
B
They are electromagnetic waves.
C
They will act like x-rays.
D
They will act like light rays.
33

Which part of the electromagnetic spectrum has the longest wavelengths?

A
radio waves
B
gamma rays
C
infrared light
D
ultraviolet light
34

Which example would contain only longitudinal waves?

A
a crowd doing the wave at a sporting event
B
an ultrasound that transmits soundwaves
C
the waves formed by the ocean
D
playing the guitar strings
35

A museum sets up a display of fluorescent minerals. Which best describes how electromagnetic waves can be used to enhance the display?

A
Infrared light shining on the minerals will cause them to give off visible light.
B
Visible light shining on the minerals will cause them to give off infrared light.
C
Ultraviolet light shining on the minerals will cause them to give off visible light.
D
Visible light shining on the minerals will cause them to give off ultraviolet light.
36

Look at this image of a galaxy.

Question illustration
A
barred
B
elliptical
C
irregular
D
spiral
37

What is the main element that stars are made of?

A
helium
B
hydrogen
C
magnesium
D
sodium
38

Suppose a scientific team is trying to recreate the energy-producing reactions that occur in the Sun. What would they need for the experiments?

A
hydrogen atoms, heat, and pressure
B
hydrogen atoms, helium atoms, heat, pressure, and energy
C
helium atoms and energy
D
helium atoms and hydrogen atoms
39

In 1998, scientists discovered that the expansion of the universe has been accelerating.What force is causing this phenomena?

A
dark energy
B
Hubble’s law
C
the Doppler effect
D
background radiation
40

Which object is created during the formation of a star?

A
a nebula
B
a protostar
C
a supergiant
D
a supernova

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