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Physical Science Chp 1 Exploring Physical Science Flashcards | StudBud
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Physical Science Chp 1 Exploring Physical Science
Physical Science Chp 1 Exploring Physical Science
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Review of what physical science is, the scientific method, metric system and tools of measurement.
Flashcards
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Questions
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Answers
1
How many degrees Celsius are there between freezing and boiling of water?
10
273
100
180
2
Which of the following is dangerous in the lab?
all of these
leaving a lighted Bunsen burner unattended
using fire-polished glassware
pointing a heated test tube away from yourself
3
The curved surface of the liquid in a graduated cylinder is called the _
wave
ligament
dish
meniscus
4
A liter is slightly larger than a
gallon
pint
quart
cup
5
The basic unit of volume in the metric system is the
liter
m3
milliliter
gram
6
The standard system of scientific measurement is called the _ system.
Egyptian
standard
British
metric
7
Normal human body temperature is
73 oC
98 oC
41 oC
37 oC
8
In the metric system, a centimeter is 10 times larger than a
millimeter
decimeter
kiometer
meter
9
The basic unit of mass in the metric system is the
kilogram
meter
gram
milligram
10
A proposed explanation to account for observed phenomena is called a(n)
educated guess
hypothesis
theory
law
11
Mathematics is a branch of science.
False
True
12
Never heat chemicals unless you are instructed to do so.
True
False
13
7000 g is equal to _ kg
0.7
700
7
70
14
A centimeter is equal to 100 m.
True
False
15
It is important to follow safety procedures in the lab in order to
avoid injury to others
prevent accidents
prevent damage to the equipment
all of these
16
A logical explanation of events that occur in nature is called a(n) _.
experiment
law
theory
conclusion
17
The formula for finding the volume of a rectangular solid is _
l x w
l x w x h
1/2 a (b1 + b2)
1/2 b x h
18
The _ temperature scale is used in the metric system.
Fahrenheit
Smurdley
Rankine
Celsius
19
Large distances are best measured in _
kilometers
nanometers
millimeters
centimeters
20
The metric system is based on units of five.
True
False
21
_ should be used to safely pick up hot glassware
Bare hands
Your shirt
all of these
Gloves
22
In which unit is mass measured?
milliliters
meters
kilometers
kilograms
23
Weight is the amount of matter in an object.
True
False
24
How do you find the mass of water using a balance?
Pour water into beaker and find mass
Mass empty beaker, pour in water, find mass, subtract beaker
Pour into a graduated cylinder and measure
Pour water on the balance
25
A graduated cylinder is used to measure
mass
density
weight
volume
26
A scientific experiment should always have a control setup.
True
False
27
When measuring a liquid you read the top of the meniscus.
False
True
28
The digital balance is used to measure
volume
mass
density
weight
29
The mass of VERY small objects is best measured in _
kilograms
grams
pounds
milligrams
30
The amount of liquid in a drinking glass would most likely be measured in which units?
centimeters
liters
grams
milliliters
31
A meter is slightly larger than a(n)
mile
yard
foot
inch
32
The goal of science is to _ the world around us.
manipulate
measure
understand
observe
33
The reason a variable is placed in an experiment.
the factor that remains the same
aid in development of the hypothesis
provide same results as the control
serve as the factor that gets tested
34
The density of an object with a mass of 30 g and a volume of 10 mL is _ g/mL
20
300
3
40
35
The basic unit of weight in the metric system is the newton.
True
False
36
To visually compare data a scientist makes a _ on which to plot the data
graph
all of these
list
chart
37
The basic unit of volume in the metric system is the
gram
mile
liter
meter
38
An object's _ is its mass divided by its volume
weight
density
temperature
area
39
You would use a _ to determine the temperature of boiling water.
metric ruler
digital balance
thermometer
graduated cylinder
40
If the mass of an object is 300 g and its volume is 150 mL, its denstiy is
2.0 g/mL
0.5 g/mL
0.2 g/mL
5 g/mL
41
Scientists test their hypothesis in which step of the scientific process?
experimenting
stating the problem
analyzing results
recording data
42
A scientific theory that has been tested many times and is accepted as true is called a
hypothesis
theory
law
fact
43
Which is a hypothesis?
I think the tire went flat because of a nail puncture.
There was no hole found in the tire.
Inflate the tire to a pressure of 16 kg/cm2.
The air leak is due to a faulty valve stem on the tube.
44
Chemicals may be touched, tasted and smelled in the lab.
False
True
45
Which is NOT a safe procedure to follow when using glassware?
Never use chipped or cracked glassware
Touch glassware with your hands to see if it is hot
Clean glassware thoroughly before putting it away
Use heat resistant gloves for hot glassware
46
A measure of the amount of matter in an object is its
density
weight
volume
mass
47
The basic unit of length in the metric system is the
liter
meter
gram
mile
48
A metric unit that may be used to measure volumes of solids and liquids.
gram
cubic centimeter
milliliter
liter
49
A gram is about the same as the mass of a(n)
science book
dime
apple
beaker
50
The metric prefix
milli-
means
one thousandth
one million
one thousand
one hundredth
51
When measuring the temperature of water, you can expect to report your answer in
nanometers
degrees Celsius
centimeters
milligrams
52
Mass is best defined as the
density of an object
size of an object
amount of matter in an object
weight of an object
53
The basic unit of length in the metric system is the _.
meter
inch
centimeter
foot
54
In which units would the length of a river most likely be measured?
meters
centimeters
millimeters
kilometers
55
To measure out 25 mL of salt solution, you would use a
metric ruler
Celsius thermometer
graduated cylinder
triple-beam balance
56
The metric prefix
kilo-
means
one thousand
one millionth
one hundred
one thousandth
57
The amount of space an object takes up is called its
density
mass
area
volume
58
In the metric system the prefix
kilo-
means 10.
False
True
59
A kilometer is equal to 1000 meters.
False
True
60
On the Celsius thermometer scale,
water boils at 100 oC
water freezes at 37 oC
water boils at 0 oC
water freezes at 100 oC
