A scientific theory is an explanation that

has been tested by many observations

The main branches of natural science are

life, physical, and earth science

Pure science is best described as:

continuing search for new knowledge

What does it mean to say that "no experiment is a failure"?

all experiments are observations of real events

What is a scientific law?

it is a description of a natural event

A scientific model is a

representation of a real event or object

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Physical Science Chapter 1 Test Review

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Questions 22

Answers

1
Which of the following is not a branch of biology?
medicine
geology
ecology
zoology
2
The first steps in the scientific method is usually:
forming a hypothesis
testing a hypothesis
collecting data
making an observation
3
Find the volume of a cube that is 2.5 cm x 2.65 cm x 3.456 cm. How many sig figs should be in your answer?
4
2
1
3
4
What is the area of a room that is 4 x 10^2 cm long and 2 x 10^3 cm wide?
8 x 10^5 cm2
6 x 10^3 cm2
8 x 10^3 cm2
8 x 10^7 cm2
5
Find the area of a room that is 4.56 m long and 5.668 m wide. How many sig figs should be in your answer?
3
5
6
7
6
The SI unit for measuring temperature is:
Degree
Ampere
Mole
Kelvin
7
The two main branches of science are:
Natural and social science
Physics and chemistry
Natural and physical science
Biological and Earth science
8
Technology can best be defined as
science that uses computers
the use of lenses and microscopes
applied science
new inventions
9
A scientific theory is an explanation that
has been tested by many observations
a scientist has tested with an experiment
predicts what will happen
has been published in a journal or book
10
A measurement that is as accurate as possible is one that:
contains at least 5 decimal points
is as exact as possible
is close to the true value
contains at least 4 significant figures
11
The main branches of natural science are
physics and chemistry
medicine and agriculture
life, physical, and earth science
biology, zoology, and ecology
12
Scientists use computer models to study complicated events to...
change theories into laws
make predictions
state theories
perform experiments
13
Scientists test a hypothesis by...
formulating questions
doing experiments
drawing conclusions
designing models
14
What instrument has been used to detect the oldest, most distant objects in the solar system?
light telescope
radio telescope
particle accelerator
spectrophotometer
15
The force at which gravity pulls on a quantity of matter is referred to as:
Mass
Length
Volume
Weight
16
Pure science is best described as:
study of the makeup of living things
continuing search for new knowledge
use of science to solve human problems
application of scientific knowledge
17
What does it mean to say that "no experiment is a failure"?
all experiments yield the desired results
all experiments give scientists work to do
all experiments are observations of real events
all experiments involve manipulating variables
18
What is 78,900,000,000 expressed in scientific notation?
7.89 x 10^10
7.89 X 10^11
7.89 x 10^9
789 x 10^9
19
What is a scientific law?
it is the same as a hypothesis
it is a description of a natural event
it is the conclusion of a scientific experiment
it is an explanation of a scientific observation
20
A scientific model is a
mathematical statement of a theory
new theory that takes the place of an incorrect one
representation of a real event or object
small building used to conduct experiments
21
The SI unit that means one million is:
Kilo-
Milli-
Mega-
Giga-
22
A precise measurement is one that...
contains at least 3 significant figures
contains the correct number of significant figures
is as exact as possible
is close to the true value

Physical Science Chapter 1 Test Review Flashcards | StudBud