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WorksheetsMidterm Review
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
What is the mean of the numbers 63,60,73,67,67?
a)
63
b)
65
c)
66
d)
67
2.
What is the median of the numbers 63,60,73,67,67?
a)
63
b)
65
c)
66
d)
67
3.
What is the mode of the following numbers: 63,60,73,67,67?
a)
63
b)
65
c)
66
d)
67
4.
How many oxygen (O) atoms are there in H202?
a)
0
b)
1
c)
2
d)
3
5.
At least 2 atoms of different elements that are combined chemically is the definition for...
a)
molecule
b)
compound
c)
mixture
d)
solid
6.
Two atoms of the same element that combine chemically is the definition for...
a)
molecule
b)
compound
c)
mixture
d)
solid
7.
What is the location and charge for an electron?
a)
outer shell, negative
b)
outer shell, positive
c)
nucleus, negative
d)
nucleus, positive
8.
What is the location and charge for a proton?
a)
outer shell, negative
b)
outer shell, positive
c)
nucleus, negative
d)
nucleus, positive
9.
What is the location and charge of a neutron?
a)
outer shell, neutral
b)
nucleus, positive
c)
nucleus, negative
d)
nucleus, neutral
10.
Atomic mass (rounded)- atomic number is the formula for finding...
a)
protons
b)
neutrons
c)
electrons
d)
Weight
11.
Atomic number tells you...
a)
number of protons
b)
number of neutrons
c)
number of electrons and protons
d)
number of electrons
12.
A substance that cannot be broken down by chemical or physical means is also known as ...
a)
a compound
b)
an element
c)
a mixture
d)
a molecule
13.
Elements can easily change into other elements?
a)
True
b)
False
14.
When elements react chemically, what is formed?
a)
compound
b)
heterogeneous mixture
c)
homogeneous mixture
d)
element
15.
What happens to properties of the elements when they react to form a compound?
a)
elements keep their original properties
b)
elements lose their original properties
c)
elements keep some of their properties
16.
If two poisonous elements are combined chemically, then what can we predict of the resulting compound?
a)
it will be poisonous
b)
it may or may not be poisonous
c)
it will not be poisonous
17.
Which of the following is/ are a pure substance?
a)
just elements
b)
elements and compounds
c)
just compounds
d)
mixtures
18.
Which is not a characteristic of solids?
a)
vibrate in a fixed position
b)
definite volume
c)
flow easily
d)
low energy
19.
Which is not a characteristic of liquids?
a)
flow easily
b)
loosely packed
c)
definite shape
d)
definite volume
20.
Which is not a characteristic of gas?
a)
indefinite volume
b)
very loosely packed
c)
indefinite shape
d)
low energy
21.
Which is NOT a chemical property of matter?
a)
reactivity
b)
ductility
c)
combustivity
d)
flammability
22.
Which is not a physical property of matter?
a)
solubility
b)
density
c)
state
d)
reactivity
23.
Ice melting in sweet tea would be an example of a
a)
physical change
b)
chemical change
24.
The density of water is 1.00g/mL. What would happen to a piece of cork with a density of 0.25 g/mL?
a)
It would sink
b)
It would float
c)
They would mix
25.
What is the formula for density?
a)
v/m
b)
d/v
c)
m/v
d)
d/m
26.
How could you know a chemical change has occurred?
a)
bubbles
b)
temperature change (with in system)
c)
odor
d)
all of the above
27.
A change that does not change the identity of the substance is known as a
a)
chemical change
b)
physical change
c)
non-identity change
d)
identity change
28.
A change that does change the identity of a substance is known as a
a)
chemical change
b)
physical change
c)
non-identity change
d)
identity change
29.
Which of the following is NOT a property of metals?
a)
right of the zig-zag
b)
poor conductor
c)
malleable
d)
solid
30.
Which of the following is NOT a property of non-metals?
a)
right of the zig-zag
b)
poor conductors
c)
shiny
d)
gas
31.
Elements are more similar going
a)
across a period
b)
down a group (family)
32.
The law of conservation of mass only occurs in
a)
open systems
b)
closed systems
c)
isolated systems
33.
A student has two different liquids in open jars. She pours the liquid from one jar into the other jar, she observes bubbles. After the bubbling stops, she finds the total weight of the liquids is now less than it was before the liquids were mixed together. How can her observations be explained?
a)
some atoms went into the air
b)
some atoms were destroyed
c)
some atoms became heavier
d)
some atoms became lighter
34.
What is the formula for speed?
a)
distance/ time
b)
distance/ speed
c)
distance/ time + direction
d)
speed x time
35.
What is the formula for velocity?
a)
distance/ time
b)
distance/ speed
c)
distance/ time + direction
d)
speed x time
36.
Which is not a type of acceleration?
a)
Speeding up
b)
Slowing down
c)
Constant speed
d)
Changing directions
37.
more mass = ________ gravity
a)
more
b)
less
38.
more distance = ________ gravity
a)
more
b)
less
39.
The amount of matter in a substance is the definition for
a)
weight
b)
mass
40.
Mass is measured in
a)
pounds
b)
grams
c)
newtons
41.
weight is measured in...
a)
pounds
b)
grams
c)
newtons
42.
The gravitational pull on an object is the definition for
a)
weight
b)
mass
43.
Mass is
a)
constant wherever you go
b)
can change depending on where you are
44.
Weight is
a)
constant wherever you go
b)
can change depending on where you are
45.
An object at rest will stay at rest and an object in motion will stay in motion, without changing direction, until an unbalanced force acts on it. Which law is this?
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
46.
F = ma is
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
47.
For every action there is an equal and opposite reaction is
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
48.
As you are sitting in your chair you exert a force on the chair, but the chair also exerts a force back on you to be able to keep you seated. This is an example of
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
49.
When you are driving and the car suddenly slams on the brakes you continue to move forward until your seat belt stops you. This is an example of...
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
50.
I am going to study all of the additional material because I understand that this quizzizz is only a review and NOT a study guide.
a)
True
b)
False
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