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Tri. 1 Final review: Chapters 1 & 2 Flashcards | StudBud
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Tri. 1 Final review: Chapters 1 & 2
Tri. 1 Final review: Chapters 1 & 2
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StudBud Administration
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Review of chapters 1 and 2
Flashcards
40 cards
F
Practice quiz
P
Host live
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Questions
40
Answers
1
New substances are always formed when matter undergoes a
physical change
change in state
chemical change
change in temperature
2
What is an endothermic change?
a change in which energy is given off
a change in which energy is taken in
a change in which no energy is lost or gained
a change in which energy is given off and then taken back in
3
902 m = ? cm
90,200 cm
0.902 cm
9.02 cm
9,020 cm
4
A pure substance made of two or more elements chemically combined in a set ratio is called a(n)
element
solution
mixture
compound
5
In this graph, what is the Independent variable?
Global temperatures (˚C)
Year
Bounce height (cm)
% of CO2 in atmopshere
6
How is
mass
different than
weight
?
One's measured with a graduated cylinder & one with a scale.
Both are measured with a balance.
Weight includes gravity, mass doesn't.
They are the same.
7
Through water displacement we know that the rock has a volume of...
125 mL
75 mL
50 mL
25 mL
8
Which of the following is an example of a solution?
oxygen gas
water
air
hydrogen gas
9
The maximum depth of Lake Anderson is
244m
. What is the depth of the lake in kilometers?
244,000 km
24,400 km
0.0244 km
0.244 km
10
In this graph, what is the dependent variable?
Time
Year
% of CO2 in atmopshere
Global temperatures (˚C)
11
Looking at the chart, what is the independent variable.
Water
Number of water fleas
Water temperature
Water flea heart rate
12
Which one of these observations is an example of quantitative data?
The color of the sky
The type of
The softness of a blanket
The number of skittles in a bag
13
What is the slope of this line?
-2
4
1/2
2
14
A balance is a scientific tool used to quantitatively measure
temperature
mass
time
volume
15
Chemical energy is the energy
that travels through space as waves.
of moving, electrically charged particles.
of temperature.
stored in the bonds between atoms.
16
Water is an example of
a mixture
an element
a compound
an atom
17
In a controlled experiment,
your hypothesis is always correct
you are changing multiple variables
the outcome is controlled.
You change 1 variable, & the others remain unchanged.
18
An explanation of an event that is based on repeated observations is a/an
Theory
Inference
Hypothesis
Guess
19
0.6034 has __________ significant figures
3
5
6
4
20
What is the base unit for mass?
Milligrams
Liters
Grams
Pounds
21
A material made up of two or more substances that can easily be separated by physical means.
compound
atom
mixture
element
22
The form of energy that travels through space as waves is called
electromagnetic energy
Electrical energy
thermal energy
chemical energy
23
A physical change is a change...
in shape or state, but remains the same substance.
into a different substance.
by burning or combustion.
into a substance with different properties.
24
The ability to dissolve in water and to conduct electricity are examples of
physical properties
chemical bonding
chemical properties
chemical change
25
This picture shows...
Low accuracy, high precision
High accuracy, high precision
High accuracy, low precision
Low accuracy, low precision
26
What is matter?
The gravitational pull of an object
The state of matter (solid, liquid, or gas)
Anything that has mass and takes up space
The amount of matter in an object
27
The law of conservation of matter states that...
matter is never destroyed, always created
matter is never created, always destroyed
matter is never created or destroyed
matter us always created and destroyed
28
Both physical change and chemical change results in a change in...
temperature
energy
volume
mass
29
Fruit salad is an example of a
homogeneous mixture
Chemical mixture
compound mixture
heterogeneous mixture
30
If you've ever warmed your hands near a wood fire, you've experienced energy from a(n)
endothermic change
physical change
exothermic change
change of state
31
Which branch of science is NOT included in physical science?
chemistry
zoology
physics
astronomy
32
Which of the following is an example of a chemical change?
Mixing sugar into hot tea
Ice melting
Chopping nuts
Burning a match
33
Hardness, temperature, color, size, and smoothness are all
states of matter
used to describe elements not compounds
chemical properties of matter
Physical properties of matter
34
Which of these is an SI
base unit
?
Liter
Centimeter
Kilogram
Inches
35
A __________ slope is represented by a downward slant.
Negative
Positive
Undefined
Zero
36
The energy released when paper burns comes mostly from...
thermal energy
chemical energy
electric energy
electromagnetic energy
37
Which type of graph BEST shows changes over time?
Bar graph
Any of these is fine.
Line graph
Pie chart
38
When matter changes, the most common form of energy released or absorbed is
chemical energy
thermal energy
electric energy
electromagnetic energy
39
Which would be the best unit to use to measure the amount of liquid in a test tube?
Kiloliters
Milliliters
Meters
Liters
40
Indications a chemical reaction is occurring. (More than 1 answer)
change in temperature
bubbling
melting
change in color
