Physics Test 1B
 
Name:     ID: 
 
Email: 

Physics Test 1B

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Accuracy is judged by
a.
how close a value is to the true value.
b.
the precision of the tool used for measurement.
c.
the reputation of the scientist.
d.
None of the above
 

 2. 


mc002-1.jpg

According to the graph above, how long does it take this car to travel 270 kilometers?
a.
6 hours
c.
12 hours
b.
9 hours
d.
15 hours
 

 3. 


mc003-1.jpg

According to the graph above, what is the dependent variable?
a.
Distance (km)
c.
Cannot be determined
b.
Time (h)
d.
Speed
 

 4. 


mc004-1.jpg

According to the graph above, what is the independent variable?
a.
Distance (km)
c.
Cannot be determined
b.
Time (h)
d.
Speed
 

 5. 


mc005-1.jpg

According to the graph above, what does the slope indicate?
a.
time/distance =  speed
c.
Cannot be determined
b.
distance/time = speed
d.
distance/time = acceleration
 

 6. 

How many significant figures are in 70,200?
a.
two
c.
three
b.
four
d.
five
 

 7. 

Which of the following shows 0.0000043 g?
a.
4.3 ´ 107 g
c.
4.3 ´ 10–6 g
b.
4.3 ´ 106 g
d.
4.3 ´ 10–7 g
 

 8. 

The main branches of natural science are
a.
physics and chemistry.
b.
biology, zoology, and ecology.
c.
medicine and agriculture.
d.
life, physical, and Earth science.
 

 9. 

What do scientists who do pure science do?
a.
They look for ways to use scientific knowledge to solve problems.
b.
They develop new uses for scientific knowledge.
c.
They do experiments to find out about the world.
d.
They build faster and more powerful computers.
 

 10. 

A scientific law is
a.
the same as a hypothesis.
b.
a description of a natural event.
c.
an explanation of a scientific observation.
d.
the conclusion of a scientific experiment.
 

 11. 


mc011-1.jpg

According to the graph, for which year was the smallest number of pennies found?
a.
1988
c.
1990
b.
1989
d.
1991
 

 12. 

Scientists test a hypothesis by
a.
formulating questions.
c.
doing experiments.
b.
designing models.
d.
drawing conclusions.
 

 13. 

Maria is 123 centimeters tall. Her height in meters is
a.
0.0123 m.
c.
1.23 m.
b.
0.123 m.
d.
12.3 m.
 

 14. 

Maria is 123 millimeters tall. Her height in meters is
a.
0.0123 m.
c.
1.23 m.
b.
0.123 m.
d.
12.3 m.
 

 15. 

Which SI prefix means one one-hundredth (1/100)?
a.
nano-
c.
milli-
b.
micro-
d.
centi-
 

 16. 

A loaf of bread weighs 1,362 g. The weight in kilograms is
a.
1.362 kg.
c.
0.1362 kg.
b.
1,362 kg.
d.
0.01362 kg.
 

 17. 

The speed of light is approximately 3 ´ 108 m/s. How would this be written in conventional notation?
a.
300,000 m/s
c.
30,000,000 m/s
b.
3,000,000 m/s
d.
300,000,000 m/s
 

 18. 

You are asked to find the volume of a cube that is 2.5 cm high, 2.65 cm wide, and 3.456 cm long. How many significant figures should you show in your answer?
a.
1
c.
3
b.
2
d.
4
 

 19. 

A measurement that is accurate is one that
a.
is as exact as possible.
b.
is close to the true value.
c.
contains at least four significant figures.
d.
contains five decimal places.
 

 20. 

An important science skill is critical thinking. This means
a.
thinking logically to solve a problem.
b.
discovering the shortcomings of others.
c.
knowing when something is very important.
d.
testing a hypothesis during an experiment.
 

 21. 

A tool used by physicists to smash atoms is a
a.
spectroscope.
c.
particle accelerator.
b.
stopwatch.
d.
radio telescope.
 

 22. 

The two main branches of science are
a.
physics and chemistry.
c.
natural and physical science.
b.
natural and social science.
d.
biological and Earth science.
 

 23. 

A scientific theory is an explanation that
a.
has been published in a journal or book.
b.
predicts what will happen.
c.
has been tested by many observations.
d.
a scientist has tested with an experiment.
 

 24. 

For a scientific theory to be valid, it must allow you to
a.
perform experiments.
c.
form a hypothesis.
b.
obtain new results each time.
d.
make predictions.
 

 25. 

A scientific model is a
a.
representation of a real event or object.
b.
small building used to conduct experiments.
c.
mathematical statement of a theory.
d.
new theory that takes the place of an incorrect one.
 

 26. 

The SI unit for measuring temperature is the
a.
degree.
c.
mole.
b.
kelvin.
d.
ampere.
 

 27. 

Which SI prefix means one million?
a.
kilo-
c.
giga-
b.
mega-
d.
milli-
 

 28. 

The decimal equivalent of 10–2 is
a.
100.
c.
0.1.
b.
10.
d.
0.01.
 

 29. 

What is 78,900,000,000 expressed in scientific notation?
a.
789 ´ 109
c.
7.89 ´ 109
b.
78.9 ´ 108
d.
7.89 ´ 1010
 

 30. 

You are asked to find the area of a room that is 4.56 m long and 5.668 m wide. How many significant figures should you show in your answer?
a.
3
c.
6
b.
5
d.
7
 

Matching
 
 
Match each item with the correct statement below.
a.
science
f.
chemistry
b.
technology
g.
physics
c.
model
h.
geology
d.
scientific law
i.
meteorology
e.
scientific theory
j.
ecology
 

 31. 

the application of scientific knowledge for practical purposes
 

 32. 

a branch of Earth science that studies the physical nature and history of Earth
 

 33. 

observing, studying, and experimenting to find the nature of things
 

 34. 

a branch of physical science that studies matter and its changes
 

 35. 

an explanation of how a natural process works
 

 36. 

a branch of Earth science that studies the atmosphere and the weather
 

 37. 

a branch of biology that studies the balance in nature
 

 38. 

a representation used to study an object or event
 

 39. 

a description of a process in nature that can be tested by repeated experiments
 

 40. 

a branch of physical science that studies forces and energy
 



 
         Start Over