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Worksheets3.22
Total questions: 67
Worksheet time: 1hrs 7mins
Name
Class
Date
1.
Compounds are made up of two or more atoms physically combined.
a)
True
b)
False
2.
How many elements are represented in the compound?
Na2CO3
Na2CO3
a)
1
b)
2
c)
3
d)
4
3.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
4.
How many carbon atom/s are present in the compounds CaCO3?
a)
1
b)
2
c)
3
d)
4
5.
A compound consists of two or more elements bound together.
a)
True
b)
False
6.
Is Iron (Fe) an element or a compound?
a)
Element
b)
Compound
7.
How many elements are in HHe
a)
3
b)
4
c)
2
d)
5
8.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
9.
The mass of an object ___________________________.
a)
changes, depending on where it is located
b)
changes randomly
c)
changes, depending on temperature
d)
does not change
10.
One piece of matter is cut into two pieces. What would be the mass of the two new pieces if we combined them?
a)
the two pieces would have the same mass as the original piece
b)
the two pieces would have more mass than the original piece
c)
the two pieces would have less mass than the original piece
d)
there is no way to tell which would have more mass
11.
Which of these things contains matter?
a)
rocks
b)
x-rays
c)
light
d)
heat
12.
What is mass?
a)
the force of an object caused by gravity
b)
the amount of space something takes up
c)
the amount of matter in an object
d)
how fast something is moving
13.
Suppose an astronaut were to visit a planet where the gravity is half that of Earth. His MASS on that planet would be ______________.
a)
half his Earth mass
b)
the same as his Earth mass
c)
twice his Earth mass
d)
zero
14.
Energy due to motion is ____________ energy.
a)
Potential
b)
Energy
c)
Kinetic
d)
Friction
15.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
all of the above
16.
__________ is stored energy.
a)
Potential
b)
Kinetic
c)
None of the above
d)
All of the above
17.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
18.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
19.
What kind of energy is in a stretched rubber band?
a)
Potential
b)
Kinetic
20.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
21.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
22.
Which is an example of potential energy?
a)
a roller coaster speeding down a hill
b)
the pulled back string on an archers's bow
c)
releasing the strings on a guitar
d)
an electric current lighting a light bulb
23.
At the top of a loop there is more of this type of energy?
a)
Potential
b)
Kinetic
24.
On a roller coaster, where is maximum potential energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
25.
On a roller coaster, where is maximum kinetic energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
26.
Which point has the most potential energy?
a)
G
b)
f
c)
b
d)
a
27.
Which 2 letters have the most kinetic energy
a)
W & Y
b)
X & Z
28.
Where would a person have to be located to have the minimum gravitational potential energy?
a)
up on the roof
b)
down in the basement
c)
in the middle
d)
outside
29.
Is music playing from a record an analog or digital signal?
a)
Analog
b)
Digital
30.
Is a video game coded as analog or digital data?
a)
Analog
b)
Digital
31.
The string of 1s and 0s that control a computer is called _____ code.
a)
binary
b)
dichotomous
c)
Morse
d)
two-number
32.
Numbers in an analog code can have _____ values.
a)
any
b)
only high
c)
only low
d)
only set
33.
Which type(s) of signal(s) can be easily corrected to remove noise?
a)
Analog
b)
Digital
c)
Both
d)
Neither
34.
How do computer hard drives and USB drives store data?
a)
Binary code
b)
Pictures
c)
Symbols
d)
Words
35.
Which type(s) of signal(s) can be transmitted as radio waves?
a)
Analog
b)
Digital
c)
Both
d)
Neither
36.
Setting the color of each pixel on a computer screen requires a _____ signal.
a)
analog
b)
digital
c)
loud
d)
fast
37.
The signal above is an example of a(n)
a)
Digital Signal
b)
Analog Signal
38.
Which is an example of an analog signal?
a)
Blu-Ray DVD
b)
VHS Tape
39.
Smooth and continuous data
a)
analog
b)
digital
c)
pulse
d)
binary
40.
This is how analog signal looks like.
a)
True
b)
False
41.
A big disadvantage of digital technology is the recording does degrade over time.
a)
True
b)
False
42.
Is this digital or analog?
a)
Digital
b)
Analog
43.
Is this digital or analog?
a)
Digital
b)
Analog
44.
Is this digital or analog?
a)
Digital
b)
Analog
45.
Is this digital or analog?
a)
Digital
b)
Analog
46.
The picture shows an example of what kind of signal?
a)
Analog
b)
Digital
47.
Which of the following is an example of an Digital signal storage?
a)
b)
c)
d)
All of these
48.
Why are digital signals more reliable in transmitting information than analog signals?
a)
They are more powerful
b)
They carry less information
c)
They have less interference over long distances
d)
They have more interference over long distances
49.
Identify a disadvantage of an analog signal:
a)
Requires low power
b)
Doesn't get interference
c)
When copied, quality goes down
d)
Hardware is usually small
50.
What does the number 3 represent in 4NH3?
a)
Subscript
b)
Superscript
c)
Coefficient
51.
What does the number 4 represent in 4NH3?
a)
Subscript
b)
Superscript
c)
Coefficient
52.
How many Nitrogen (N) atoms are in 4NH3?
a)
4
b)
1
c)
3
d)
12
53.
How many Hydrogen (H) atoms are in 4NH3?
a)
4
b)
1
c)
3
d)
12
54.
How many total molecules is 4NH3?
a)
4
b)
1
c)
3
d)
12
55.
How many total atoms make up 4NH3?
a)
4
b)
16
c)
3
d)
12
56.
In the equation shown, what are the reactant(s)?
a)
N2 + H2
b)
NH3
57.
In the equation shown, what are the product(s)?
a)
N2 + H2
b)
NH3
58.
Is this equation balanced?
a)
Yes
b)
No
59.
Is this equation balanced?
a)
Yes
b)
No
60.
Identify the reactant(s) and product(s) of the reaction.
a)
All three are reactants and none are products.
b)
Hydrogen and water are the reactants, and oxygen is the product.
c)
Water and oxygen are the reactants, and hydrogen is the product.
d)
Hydrogen and oxygen are the reactants, and water is the product.
61.
Which is the Law of Conservation of Matter?
a)
matter cannot be created or destroyed, it only rearranges
b)
matter can be created but it cannot be destroyed, it never rearranges
c)
matter can be destroyed but it cannot be created, it usually just rearranges
d)
matter is an unproven theory created by Hans Geiger
62.
Which one is a compound?
a)
Co
b)
Br
c)
Fe
d)
CO
63.
Which one is an element?
a)
Co
b)
CO
c)
CO2
d)
CO3-2
64.
Chemical reactions
a)
create and destoy atoms
b)
only occurs outside living organisms
c)
occurs only in living organisms
d)
produce new substances
65.
Which side of a chemical equation is the product side?
a)
Left (before the yields sign)
b)
Right (after the yields sign)
66.
What is a coefficient?
a)
The small number on the right of the chemical symbol.
b)
The large number to the left of a formula.
67.
At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?
a)
the product is doubled
b)
the product is half the mass of the reactants
c)
the mass is the same
d)
the mass changes depending on the reaction
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