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CFE Review: Day 1 Flashcards | StudBud
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CFE Review: Day 1
CFE Review: Day 1
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Earth/Space Science CFE Review Nature of Science Universe Solar System
Flashcards
35 cards
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Practice quiz
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Host live
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Questions
35
Answers
1
Which of these is not a potential galaxy shape?
Irregular
Cosmic
Elliptical
Spiral
2
A(n) ________ is a massive system of stars, dust, and gas held together by gravity.
Galaxy
Universe
Solar system
Cinematic multiverse
3
Which of the following is NOT involved in a scientific investigation?
Using a pointer
Gathering data
Asking a question
Forming a hypothesis
4
In a fair experiment, how many variables are changed?
1
3
4
2
5
What does empirical evidence include?
Personal beliefs
Observations
Explanations
Ideas
6
What is the difference between inferring and hypothesizing?
Inference: an explanation, hypothesis: an interpretation.
Inference: an interpretation, hypothesis: an explanation.
An inference is a guess, a hypothesis is certain.
An inference is controlled, a hypothesis is not.
7
Which graph shows the correct relationship between gravity and distance?
D
C
A
B
8
Earth's gravity pulls everything towards the _______
north
sky
Sun
center
9
Revolution time and rotation time of a planet determine what?
Revolution: year Rotation: day
Revolution: day Rotation: year
Revolution: hour Rotation: year
Revolution: day Rotation: seasons
10
To be useful in science, a hypothesis must:
Be correct
Be testable
Be measureable
Be observable
11
Which of the following statements about scientific theories is NOT true?
It enables scientists to make accurate predictions.
They are based on a large body of evidence.
It has the same meaning in daily life as in science.
It ties in many hypotheses.
12
Which is true about a light year?
It is a measure of time
It is shorter than astronomical units
It takes one light year for Earth to orbit the sun
It is a measure of distance
13
5.43x10
3
is the equivalent of what?
0.00543
543
5,430
543,000
14
Do theories become laws?
Yes, but only after many years of evidence.
Yes, but only after the idea is peer reviewed over 100X
Maybe, if Bill Nye likes it enough.
No, theories are explanations. Laws are statements.
15
In an experiment what is a control?
Controls experience the same conditions, but has no changes.
Controls are the part of the experiment that changes.
None of these
Controls experience nothing that the experimental group does
16
Which of the following is not a criteria of a planet?
Enough self-gravity to become round
Has at least one moon
Orbiting a star
A cleared orbital neighborhood
17
What is the largest unit that scientists use to measure distance in space?
kilometers
parsecs
light years
astronomical units
18
The geocentric model of the solar system states that...
The biggest planet is at the center of the solar system
The moon is at the center of the solar system
The sun is at the center of the solar system
The Earth is at the center of the solar system
19
Why is Venus the hottest planet in our solar system?
High carbon dioxide levels in Venus' atmosphere
It's not, this is a trick question.
It is the closest planet to the Sun
There is no water to cool the planet
20
A(n) _________ is a visual or mathematical representation of an object or system.
observation
model
method
theory
21
How do scientists believe the Big Bang started?
Several galaxies collided and exploded
The universe appeared in its current location
Light waves condensed in a single area and matter formed
From a tiny point of pure energy
22
Orbiting the Sun Between Mars and Jupiter is...
Earth
Saturn
comets
asteorids
23
What type of observation is this: the corn snake is 40cm long.
Quantitative
Constant
Independent
Qualitative
24
Which of the following is not true about gravity?
It decreases as distance increases
It holds together the universe
It is an attractive force
It decreases as mass increases
25
The doppler effect makes an object moving away from you sound...
Higher
Disappear
Lower
The same
26
If you want to perform an experiment that your friend has already completed what are you doing?
Designing the experiment
Repeating the experiment
Analyzing the results
Replicating the experiment
27
How does the nebular theory describe the formation of the solar system?
Chunks of matter from the big bang were blasted into space
A cloud of spinning dust and gas
A giant asteroid collision
A star exploded
28
If a galaxy was moving towards us it would look...
More blue
Very pretty
More red
More green
29
Which of the following would be the best model of the Big Bang Theory?
Lighting a firecracker
Launching a rocket engine
Throwing a ball
Dropping a bag of oranges off of a tall building
30
How old do scientists think the Universe is?
1.38 billion years
1.38 million years
13.8 billion years
13.8 million years
31
What is the biggest difference between the orbits of comets and the orbits of planets?
Comets have a tilted orbital plane
Comets always move faster in their orbit
Comets orbit closer to the sun
Comets don't orbit the sun
32
Which is listed from largest to smallest?
galaxy -> universe -> star -> planet
universe -> galaxy -> planet -> star
universe->galaxy->star->planet
galaxy -> universe -> planet -> star
33
What is the independent variable in an experiment?
The variable that doesn't react.
The variable that receives a variety of changes.
The variable that is not changed.
The variable that is deliberately changed.
34
What is the largest thing in our solar system?
Earth
Saturn
Sun
Jupiter
35
In what galaxy do we find our solar system?
The Butterfinger Galaxy
The Elliptical Galaxy
The Andromeda Galaxy
The Milky Way Galaxy
