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Phys Sci Ch 1
Test Description: Ch 1 practice
Instructions: Answer all questions to get your test result.
1) What is a system of knowledge and the methods used to find that knowledge?
A
science
B
curiosity
C
technology
D
measurement
2) How are science and technology related?
A
advances in science may lead to advances in technology and vice versa
B
technology is a branch of natural science
C
science and technology are not related
D
science is a branch of technology
3) Which of the following is NOT a branch of natural science?
A
earth and space science
B
physical science
C
life science
D
social science
4) How does Earth science overlap with life science?
A
It does not overlap with life science
B
It involves the study of systems that include living organisms
C
It involves the study of the composition of matter
D
It involves the study of Earth's rocks
5) Which of the following is NOT one of the main ideas of physical science?
A
Energy can be transferred from one form to another but never destroyed
B
The universe is very old and very large.
C
Forces cause changes in motion
D
One of the main branches of natural science is biology.
6) What are the building blocks of all matter?
A
kinetic and potential energy
B
atoms
C
magnetic fields
D
forces
7) In which step of the scientific method is information obtained through the senses?
A
drawing conclusions
B
making observations
C
analyzing data
D
revising a hypothesis
8) What happens when the data in an investigation do not support the original hypothesis?
A
The hypothesis is revised
B
The data are altered so that they suppot the original hypothesis
C
The scientist gives up and starts an investigation on a new topic
D
The data must be incorrect and are thrown out
9) What is a statement that summarizes a pattern found in nature?
A
a hypothesis
B
a scientific law
C
a fact
D
a scientific theory
10) Which of the following statements is true about scientific theories?
A
they are never proven
B
they summarize patterns found in nature.
C
they become hypotheses
D
scientific theories become scientific laws
11) What is a physical or mental representation of an object or an event?
A
a hypothesis
B
a theory
C
a scientific law
D
a model
12) Which of the following conversion factors would you use to change 18 km to m?
A
They help visualize things that are very complex, very large, or very small
B
They make it harder to understand things
C
They never change
D
They prove scientific theories
13) What is the most important safety rule?
A
always use unbreakable glassware
B
never do expeirments that involve flames or hot objects
C
Always follow your teacher's instructions and textbook directions exactly
D
never work with chemicals
14) Why are scientific models important?
A
tying back long hair and loose clothing
B
testing an odor by directly inhaling the vapor
C
touching hot objects with your bare hands
D
eating or drinking from lab glassware
15) How is 0.00069 written in scientific notation?
A
6.9x10^4
B
6.9x10^-4
C
69x10^-5
D
0.69x10^-3
16) Which of the following is an example of a safe lab procedure?
A
1 km/100 m
B
1 km/1000 m
C
100 m/1 km
D
1000m/1 km
17) What are 6 centimeters equal to?
A
600 millimeters
B
60 millimeters
C
600 meters
D
6/10 of a millimeter
18) There are 1660 megawatts of wind-generated electricity produced globally every year. This amount is equal to
A
166,000 kw
B
1,660,000 kw
C
16,600,000 watts
D
1,660,000 watts
19) Timers at a swim meet used four different clocks to time an event. Which recorded time is the most precise?
A
55.25 s
B
55 s
C
55.2 s
D
55.254 s
20) Which of the following clocks offers the most precision?
A
with a hands for hour, for minutes, and for seconds
B
a clock with a hand to measure the hour and a hand to measure minutes
C
a clock with only one hand to measure the hour
D
a clock with only one hand to measure the minutes
*select an answer for all questions
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