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WorksheetsFinal Review
Total questions: 90
Worksheet time: 1hrs 1mins
Name
Class
Date
1.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
2.
What characteristic defines all chemical changes?
a)
There is a change of state.
b)
Electricity is produced.
c)
A new material is formed.
d)
Bubbles are produced.
3.
a phase change is always a _______ change
a)
physical
b)
chemical
c)
ductile
d)
maluable
4.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
5.
Is hammering wood together to build a house a chemical or physical change?
a)
chemical
b)
physical
6.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
7.
A change in the size, shape, or state of matter.
a)
chemical change
b)
physical change
c)
chemical reaction
d)
electron change
8.
Cannot be broken down into a simpler type of matter by either physical or chemical means
a)
Element
b)
Compound
c)
Mixture
9.
Parts that make it up do NOT keep their individual properties
a)
Element
b)
Compound
c)
Mixture
10.
Has a chemical formula
a)
Element
b)
Compound
c)
Mixture
11.
Calcium
a)
Element
b)
Compound
c)
Mixture
12.
Salt
a)
Element
b)
Compound
c)
Mixture
13.
Consists of only one type of atom
a)
Element
b)
Compound
c)
Mixture
14.
every molecule is the same
a)
Element
b)
Compound
c)
Mixture
15.
has a definite chemical composition
a)
Element
b)
Compound
c)
Mixture
16.
Potassium
a)
Element
b)
Compound
c)
Mixture
17.
Substances that make it up keep their own properties
a)
Element
b)
Compound
c)
Mixture
18.
Formed by joining two or more elements through a chemical reaction
a)
Element
b)
Compound
c)
Mixture
19.
a)
Element
b)
Compound
c)
Mixture
20.
NaHCO3
a)
Element
b)
Compound
c)
Mixture
21.
Can be separated physically
a)
Element
b)
Compound
c)
Mixture
22.
Not a pure substance
a)
Element
b)
Compound
c)
Mixture
23.
Can be separated by chemical methods.
a)
Element
b)
Compound
c)
Mixture
24.
There is no fixed amount for the substances that make it up
a)
Element
b)
Compound
c)
Mixture
25.
ice cream
a)
Element
b)
Compound
c)
Mixture
26.
a)
Pure Substance
b)
Mixture of Elements
c)
Mixture of Compounds
d)
Mixture of Elements and Compounds
27.
a)
Pure Substance
b)
Mixture of Elements
c)
Mixture of Compounds
d)
Mixture of Elements and Compounds
28.
Air
a)
Pure Substance
b)
Mixture of Elements
c)
Mixture of Compounds
d)
Mixture of Elements and Compounds
29.
What is the formula to calculate speed?
a)
S = t/d
b)
S = d/t
c)
S = d x t
d)
S = t x d
30.
What is speed?
a)
how far you go
b)
how much distance is covered over a period of time
c)
how fast you accelerate
d)
the change in the location of a object
31.
What is velocity?
a)
speed
b)
speed plus location
c)
acceleration
d)
speed in a specific direction
32.
A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
33.
Alan travels 100km in 5hrs. Find his average speed in km/h
a)
5km/hr
b)
10km/hr
c)
50km/hr
d)
20km/hr
34.
What is happening at D?
a)
not moving
b)
speeding up
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
35.
What is happening at E?
a)
no motion
b)
speeding up
c)
steady speed; moving away from the starting position
d)
Steady speed; returning to start position
36.
What is happening at A?
a)
no motion
b)
Accelerating
c)
Slower steady speed; moving away from the starting position
d)
Steady speed; returning to start position
37.
Which runner won the race?
a)
A
b)
B
c)
C
38.
The lowest possible temperature where all molecules stop moving. No more energy can be removed from matter
a)
freezing point
b)
absolute zero
c)
32 degrees Fahrenheit
d)
0 degrees Celsius
39.
a temperature scale that defines the freezing point of water as 0 degrees and the boiling point of water as 100 degrees
a)
Celsius
b)
Fahrenheit
c)
Kelvin
d)
Thermometer
40.
the temperature scale in which the freezing point of water is 273 and the boiling point is 373; 0 is absolute zero
a)
Celsius
b)
Fahrenheit
c)
Kelvin
d)
Thermometer
41.
a temperature scale that defines the freezing point of water as 32 degrees and the boiling point of water at 212 degrees
a)
Celsius
b)
Fahrenheit
c)
Kelvin
d)
Thermometer
42.
The transfer of heat through space in electromagnetic waves
a)
conduction
b)
convection
c)
radiation
d)
insulator
43.
The circulation of particles within a material (gas or liquid) caused by differences in thermal energy and density
a)
conduction
b)
convection
c)
radiation
d)
insulator
44.
a material that transfers heat well
a)
conductor
b)
radiator
c)
insulator
d)
compressor
45.
a material that does not transfers heat well
a)
conductor
b)
radiator
c)
insulator
d)
compressor
46.
a measure of the average kinetic energy of a substance
a)
temperature
b)
thermometer
c)
thermal energy
d)
thermal expansion
47.
the total energy of the particles in an object
a)
temperature
b)
thermometer
c)
thermal energy
d)
thermal expansion
48.
tool used to measure temperature
a)
scale
b)
thermometer
c)
balance
d)
ruler
49.
The heat from a hot burner to a pot is transferred by ______.
a)
convection
b)
insulation
c)
radiation
d)
conduction
50.
The way the heat is moving from the hot coffee is called...
a)
convection
b)
radiation
c)
insulation
d)
conduction
51.
Warm air rises and the cool air sinks demonstrates this type of heat transfer.
a)
conduction
b)
convection
c)
radiation
d)
Insolation
52.
Heat transfers from an area of ____temperature to an area of ___ temperature.
a)
high to low
b)
low to high
c)
high to high
d)
It can travel high to low and low to high.
53.
Warm air is __________ dense than cold air and rises creating convection currents.
a)
more
b)
less
54.
The candle will slowly heat the metal and transfer the heat directly to the mans hand.
a)
conduction
b)
convection
c)
radiation
55.
Transfer of thermal energy through "space"
a)
conduction
b)
convection
c)
radiation
56.
Transfer of thermal energy through "touch"
a)
conduction
b)
convection
c)
radiation
57.
Transfer of thermal energy through "flow"
a)
conduction
b)
convection
c)
radiation
58.
You get sunburned due to __________ from the sun.
a)
conduction
b)
convection
c)
radiation
59.
All substances are made from tiny particles called
a)
molecules
b)
atoms
c)
compounds
d)
neutrons
60.
The center of the atom is known as the
a)
core
b)
nucleus
c)
neutron
d)
shell
61.
The two subatomic particles found in the nucleus are
a)
protons and neutrons
b)
protons and electrons
c)
electrons and neutrons
d)
protons and nucleotrons
62.
The subatomic particle found outside the nucleus is the
a)
atom
b)
electron
c)
proton
d)
neutron
63.
The subatomic particle with a positive charge is the
a)
electron
b)
proton
c)
neutron
d)
nucleus
64.
The subatomic particle with a negative charge is the
a)
electron
b)
proton
c)
neutron
d)
nucleus
65.
The subatomic particle with a neutral charge is the
a)
electron
b)
proton
c)
neutron
d)
nucleus
66.
If the number of protons equal the number of _____, the atom will have no charge
a)
protons
b)
neutrons
c)
electrons
d)
nucleus
67.
How many electrons can the first three energy levels hold (up to argon)
a)
8, 8, 8
b)
2, 8, 8
c)
2, 4, 8
d)
8, 8, 2
68.
Which is the smallest subatomic particle
a)
proton
b)
neutron
c)
electron
d)
nucleus
69.
A push or a pull on a object
a)
Weight
b)
Friction
c)
Force
d)
Gravity
70.
A force that resists the motion of two surfaces that are touching
a)
Gravity
b)
Friction
c)
Centripetal Force
d)
Momentum
71.
This law is known as the law of inertia.
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
d)
Newton's motion law
72.
Which has more Inertia? (so need more force to move)
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
73.
What is the speed of the graphed object?
a)
0.5 meters / minute
b)
2 meters / minute
c)
25 meters / minute
d)
50 meters / minute
74.
Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?
a)
first
b)
second
c)
third
d)
fourth
75.
According to Newton's First Law, an object's velocity will not change unless _____ acts upon it.
a)
a balanced force
b)
an unbalanced force
c)
zero force
d)
inertia
76.
A soccer ball accelerates more than a bowling ball when thrown with the same force shows Newton's ___.
a)
1st Law
b)
2nd Law
c)
3rd Law
77.
If you slide a hockey puck on ice, eventually it will stop because of the friction of the ice. This is an example of which Law of Motion.
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
78.
What pulls a ball back to earth?
a)
Gas
b)
Gravity
c)
Friction
d)
Molecules
79.
Which of Newton's laws was observed when your balloon car moved when the air came out of the balloon?
a)
1st
b)
2nd
c)
3rd
d)
none
80.
Atomic Number
a)
28
b)
58
c)
59
d)
31
81.
Atomic Mass
a)
28
b)
58
c)
59
d)
31
82.
Number of protons
a)
28
b)
58
c)
59
d)
31
83.
Number of electrons
a)
28
b)
58
c)
59
d)
31
84.
Number of neutrons
a)
28
b)
58
c)
59
d)
31
85.
Atomic number
a)
18
b)
39
c)
40
d)
22
86.
Atomic mass
a)
18
b)
39
c)
40
d)
22
87.
Number of neutrons
a)
18
b)
39
c)
40
d)
22
88.
Number of protons
a)
18
b)
39
c)
40
d)
22
89.
Number of electrons
a)
18
b)
39
c)
40
d)
22
90.
When are you undergoing an acceleration in a car?
a)
speed up
b)
slow down
c)
make turns
d)
All of the above
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