Name:     ID: 
 
    Email: 

MidTerm Exam 2007_08

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

 1. 

The conclusion of an experiment is based upon the interpretation of __?__.
                                   
a.
control
c.
models
b.
theories
d.
observations
 

 2. 

An educated guess is a(n) __?__.
                          
a.
constant
c.
hypothesis
b.
experiment
d.
observation
 

 3. 

A(n) __?__ is a fact.
                                   
a.
control
c.
conclusion
b.
observation
d.
inference
 

 4. 

The _?_ is adjusted by the experimenter.
                       
a.
law
c.
property
b.
independent variable
d.
dependent variable
 

 5. 

The factor controlled by the independent variable is the __?__.
                           
a.
unchanged variable
c.
control
b.
controlled variable
d.
dependent variable
 

 6. 

How close a measurement is to an accepted value is called __?__.
                              
a.
significant digit
c.
law
b.
standard
d.
accuracy
 

 7. 

A balance is used to measure __?__.
                                                  
a.
mass
c.
length
b.
force
d.
volume
 

 8. 

Numbers that result from measurements are __?__.
                                 
a.
exact
c.
significant digits
b.
standards
d.
units
 

 9. 

The amount of matter in an object is its __?__.
                                          
a.
volume
c.
mass
b.
density
d.
length
 

 10. 

The SI unit of length is the __?__.
                                         
a.
kilogram
c.
liter
b.
second
d.
meter
 

 11. 

A milliliter of water has a mass of __?__.
                             
a.
1 kilogram
c.
1 decigram
b.
1 gram
d.
1 milligram
 

 12. 

One cubic decimeter is equal to one __?__.
                                  
a.
liter
c.
meter
b.
kelvin
d.
kilogram
 

 13. 

The second is the SI unit of length.
                 
a.
true
b.
false
 

 14. 

The prefix in SI that means 1/100 is __?__.
                                          
a.
hecto
c.
centi
b.
deci
d.
milli
 

 15. 

Liters, dm3, mL, cm3, and cc are all units of__?__.
                                        
a.
area 
c.
volume
b.
length
d.
mass
 

 16. 


Find the correct measured value indicated by the arrow for the ruler shown below.
a.
0.4
c.
1.4
b.
4/8
d.
1 4/16
 

 17. 

Find the correctmeasured value indicated by the arrow for the ruler shown below.
midterm07_08_files/i0180000.jpg
a.
0.7
c.
10.7
b.
7/10
d.
10 7/16
 

 18. 

Convert the following measurement to the designatedunit.
3.2 m = __?__ dam    
a.
32
c.
0.0032   
b.
0.32
d.
320
 

 19. 

Convert the followingmeasurement to the designated unit.
5.6 km = __?__ m   
a.
0.56
c.
5600
b.
56
d.
5.600
 

 20. 

The space that an object occupies is its __?__.
                                      
a.
length 
c.
density
b.
volume
d.
mass
 

 21. 

The SI unit for mass is the __?__.
                                
a.
meter
c.
cubicdecimeter
b.
liter
d.
kilogram
 

 22. 

Atemperature rise means that there is an increase in __?__.
                     
a.
mass
c.
kineticenergy     
b.
height
d.
weight
 

 23. 

Scientific Method:
Asks "What methods will be usedto carry out the experiment?"
                         
a.
problem
c.
conclusion
b.
procedure
d.
data
 

 24. 

Scientific Method:
Asks "What question do you hope to answer?"
                         
a.
problem
c.
conclusion
b.
hypothesis
d.
observations
 

 25. 

Scientific Method:
These are facts recorded during an experiment.
                           
a.
data
c.
conclusion
b.
procedure
d.
problem
 

 26. 

Scientific Method:
Asks "What is the scientific 'guess' the experiment willtest?"
                        
a.
problem
c.
conclusion
b.
hypothesis
d.
observations
 

 27. 

Scientific Method:
Results are reported here; asks "Is your hypothesis correct?"
                         
a.
problem
c.
conclusion
b.
procedure
d.
observations
 

 28. 

Scientific Method:
Record of "What you see, hear, touch, taste or smell?"
                         
a.
problem
c.
conclusion
b.
procedure
d.
data
 

 29. 

An automobile moving at a 90 km/h has this kind of energy.
                         
a.
Grav. P.E.
c.
K.E.
b.
Velocity
d.
Energy of Position
 

 30. 

Width X Height X Length of a box equals its ___________.
a.
area
c.
volume
b.
weight
 

 31. 

How many cubic centimeters are there in one liter?
a.
1,000
c.
1,000,000
b.
100
d.
10
 

 32. 

A bottle marked 1.5 liters has a volume of __________
a.
500 cm
c.
1,500 milliliters
b.
1.5 cubic liters
d.
150 cm2
 

 33. 

A box that is 10cm X 10cm x 5cm has a volume of _____________
a.
500 cm
c.
500 cm3
b.
500 cm2
 

 34. 

A rectangle 4 cm X 6 cm has an area of _________
a.
10 square centimeters
c.
24 cubic centimeters
b.
24 square centimeters
 

 35. 

The sun gives off ______ energy and ______ energy.
a.
sound, heat
c.
mechanical, chemical
b.
light, electrical
d.
light, heat
 

 36. 

Mechanical energy used to break a metal strip becomes _______ energy.
a.
heat
c.
mechanical
b.
chemical
d.
potential energy
 

 37. 

Most wasted energy from machines is given off as ______ energy.
a.
light
d.
atomic
b.
heat
e.
electrical
c.
sound
 

 38. 

When energy changes form, some ______ energy is always produced.
a.
sound
d.
light
b.
atomic
e.
heat
c.
chemical
 

 39. 

Energy cannot be ______________.
a.
made or changed
c.
made or destroyed
b.
destroyed or changed
 

 40. 

A theory is based on ________________.
a.
a guess
c.
observations and experiments
b.
what you think should happen
 

 41. 

Energy comes from ___________.
a.
theories
c.
experiments
b.
other forms of energy
 

 42. 

Energy from the sun is __________.
a.
never changed in form
c.
destroyed in space
b.
always conserved
 

 43. 

There are how many kinds of energy?
a.
one
c.
three
b.
two
d.
eight
 

 44. 

The faster things move the more _________ energy they have.
a.
potential
c.
electrical
b.
mechanical
d.
kinetic
 

 45. 

A stretched rubber band has ________ energy.
a.
potential mechanical
c.
chemical potential
b.
gravitational potential
d.
kinetic
 

 46. 

Match heads store energy as _____________ energy.
a.
gravitational poteniial
c.
chemical potential
b.
mechanical potential
 

 47. 

Aluminum is
a.
more dense than iron
c.
the same density as itron
b.
less dense than iron
 

 48. 

To find the density of a solid, you must know its
a.
size and shape
c.
mass and volume
b.
size and volume
 

 49. 

To find the volume of a solid with a regular shape, you could use a
a.
pulley
c.
ruler
b.
spring scale
 

 50. 

When a metal rod is cut in half, the density of each half
a.
is doubled
c.
remains the samne
b.
is cut in half
 

 51. 

Different liquids have
a.
the same densities
c.
a density of 1 g/cc
b.
different densities
 

 52. 

To find the volume of a liquid, you could use a
a.
graduated cylinder
c.
thistle tube
b.
balance scale
d.
centimeter ruler
 

 53. 

5 cc of a liquid has a mass of 10 grams.  The denisty of the liquid is
a.
2 grams per centimeter
c.
1/2 gram per centimeter
b.
5 grams per centimeter
d.
50 grams per centimeter
 

 54. 

Which of the following materials is more dense than iron?
a.
water
c.
cooking oli
b.
aluminum
d.
mercury
 

 55. 

The density of water is
a.
1 gram per centimeter
c.
1 gram per cubic centimeter
b.
1 grams per square centimeter
 

 56. 

Which is lightest, a cup of water, a cup of alcohol, or a cup of mercury?
a.
water
c.
mercury
b.
alcohol
 

 57. 

What is the mass of 10cc of  water?
a.
1 g/cc
c.
10 g/cc
b.
10 g
 

 58. 

Which is heavier. 1 kilogram of mercury or 1 kilogram of water?
a.
mercury
c.
the one with the greater volume
b.
water
d.
neither
 

 59. 

What is the formula for finding density?
a.
d = m/v
c.
v = m/d
b.
m = d•v
 

Matching
 
 
Correctly identify the metric prefix for each of the following:
a.
100
e.
10.0
b.
0.000001
f.
1,000,000
c.
0.01
g.
1000
d.
0.1
h.
0.001
 

 60. 

milli
 

 61. 

kilo
 

 62. 

deca
 

 63. 

mega
 

 64. 

deci
 

 65. 

micro
 

 66. 

hecto
 

 67. 

centi
 
 
a.
theory
e.
mechanical potential energy
b.
kinetic energy
f.
potential energy
c.
Albert Eienstein
g.
sound and heat energy
d.
kinetic and potential energy
h.
gravity
 

 68. 

The force that pulls things down toward the center of the earth.
 

 69. 

Stored energy.
 

 70. 

Energy in moving things.
 

 71. 

The energy in a wound clock spring.
 

 72. 

Always conserved.
 

 73. 

Released when a falling rock hits the ground.
 

 74. 

An idea based on scientific experiments or observations.
 

 75. 

Proved that matter and energy are different forms of the same thing.
 
 
midterm07_08_files/i0800000.jpg
Match each letter with the correct answer.
 

 76. 

hottest part of flame
 

 77. 

coolest region (not hot)
 

 78. 

chiminey
 

 79. 

air inlet
 

 80. 

hose connection
 

 81. 

base
 



 
Submit          Help