What does an engineer primarily do?

develops and manufactures structures for human use

A circle graph shows _______

how a whole is broken into parts

Which of the following is a good scientific question?

Does eating less fat increase a mouse's life span?

Which of the following is a scientific question that this data can answer?

Does pressure increase when the temperature rises?

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Earth Science MCA Practice 1

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Questions 20

Answers

1
A hypothesis is best described as
a conclusion based upon evidence.
a summary.
a detailed list.
an educated guess.
2
What does an engineer primarily do?
makes predictions about future events
develops and manufactures structures for human use
makes discoveries about the natural world
develops scientific theories and laws
3
Convert to meters: 3,900 cm
3,900 m
39,000 m
0.39 m
39 m
4
Hal has a glass of water. Which of the following tools could he use to measure the volume?
a graduated cylinder
a spring scale
a triple beam balance
a metric ruler
5
Which of the following objects would best be used to understand how the human heart works?
water pump
coffee filter
plastic bag
block of wood
6
According to the chart provided, how much precipitation is produced in a considerable tornado?
181-253 inches
10+ inches
2 inches
not enough information
7
Based on the chart provided, what would be the damage level of a tornado that had 275 mph winds
devastating
moderate
light
severe
8
Heat is _______ of the system.
an output
a trigger
a subsystem
an input
9
Which of the following tools could measure the gravitational force being exerted on an apple?
a metric ruler
a spring scale
a graduated cylinder
a triple beam balance
10
A circle graph shows _______
how a whole is broken into parts
how many pieces of data are found in a data set.
how an object changes over time.
how one piece of data compares to other pieces of data.
11
_______ is a system in which both matter and energy flow into and out of the system.
An isolated system
An open system
A closed system
A dynamic system
12
What is the crucial element of a good hypothesis?
It must be written in question form.
It must contain the words “if” and “then”.
It must confirm the results of a scientific experiment.
It must be testable.
13
Which of the following events is an important part of the engineering design process?
testing and evaluating models
evaluating design constraints
designing and building models
all of these
14
When developing a question for a scientific inquiry, the question will ideally
all of these
be measurable.
identify variables.
not just simply ask why.
15
Convert 97 centimeters to meters.
0.097 meter
9.7 meters
0.97 meter
970 meters
16
Which of the following types of investigation takes place in a natural setting?
development of models
field studies
reviews of existing work
controlled experiments
17
Which word is best used as a synonym for scientific conclusions?
explanations
results
data
observations
18
Which of the following is a good scientific question?
How do star fish fall in love?
Why do crickets chirp?
Does eating less fat increase a mouse's life span?
Are dragons lizards or birds?
19
Which of the following is a scientific question that this data can answer?
Is the weather nice in Abilene, TX?
Does pressure increase when the temperature rises?
What was the highest temperature in Abilene over the four da
Why does pressure change?
20
A scientific question
produces repeatable investigations
is testable.
involves things that are measurable.
all of these

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