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WorksheetsRNJH 8th Grade Science Fall Final Exam Review
Total questions: 60
Worksheet time: 1hrs 3mins
Name
Class
Date
1.
What determines how chemically reactive an element is?
a)
electrons
b)
valence electrons
c)
protons
d)
neutrons
2.
An object in motion will stay in motion, and an object at rest will stay at rest unless acted upon by an outside force is Newton's law of __________
a)
force and acceleration
b)
inertia
c)
action-reaction
3.
Unbalanced forces describe objects that ___________
a)
travel at a constant speed
b)
travel at a constant velocity
c)
change speed/direction
4.
Balanced forces would describe objects that_____
a)
move at a constant speed
b)
change speed
c)
travel at a slower speed
d)
change direction
5.
Groups on the periodic table..........
a)
are horizontal
b)
are rows
c)
are from left to right
d)
go up and down
6.
Periods on the periodic table ..........
a)
are verticle
b)
go from left to right
c)
are families
d)
go up and down
7.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
8.
The positive particles of an atom are called:
a)
electrons
b)
positrons
c)
neutrons
d)
protons
9.
2H2O + 2N → 4H + 2NO
The chemical symbols on the RIGHT are called:
The chemical symbols on the RIGHT are called:
a)
products
b)
reactants
c)
yields/produces
10.
2H2O + 2N → 4H + 2NO
The chemical symbols on the LEFT are called:
The chemical symbols on the LEFT are called:
a)
products
b)
reactants
c)
yields/produces
11.
What is the atomic number of an atom with 13 protons, 14 neutrons, and 10 electrons?
a)
1
b)
13
c)
27
d)
37
12.
_______ and _______ are located inside of the nucleus.
a)
Electrons and Protons
b)
Protons and Neutrons
c)
Neutrons and Electrons
13.
If a Carbon atom has 6 protons, how many electrons will it have?
a)
2
b)
4
c)
6
d)
8
14.
Is Potassuim (K) a metal, non-metal, or a metalloid?
a)
Metal
b)
Non-Metal
c)
Metalloid
d)
Other
15.
The elements in a column of the periodic table...
a)
have similar atomic numbers
b)
start with the same letter
c)
have similar properties
d)
are not related in any way
16.
A row on the periodic table of elements is called a...
a)
Period
b)
Group
c)
Family
d)
Column
17.
The elements in this group only have 1 outer electron.
a)
Group 11
b)
Group 1
c)
Group 3
d)
Group 18
18.
Carbon has an atomic number of 6. What can you conclude about carbon from this fact?
a)
It has six protons
b)
It has six neutrons
c)
It has six electrons
d)
It has six positrons
19.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
20.
The _________ of an element equals the number of protons in an atom of that element
a)
mass number
b)
atomic weight
c)
atomic number
d)
isotopes
21.
The __________ of an atom is the sum of the protons and neutrons in the nucleus of that atom.
a)
mass number
b)
atomic number
c)
atomic weuight
d)
isotope weight
22.
The mass number of an element that has18 protons, 18 electrons, and 19 neutrons is _____.
a)
12.5
b)
13
c)
25
d)
37
23.
The symbol for a warm front is red circles.
a)
true
b)
false
24.
A warm front brings warmer temperatures.
a)
true
b)
false
25.
The symbol for a High Pressure system is a blue H
a)
false
b)
True
26.
In what areas of the world do hurricanes form?
a)
Warm ocean waters
b)
Polar ocean waters
c)
On lakes and rivers
d)
Over the central plains of the U.S
27.
A hurricane gets its energy from
a)
Warm ocean waters
b)
high air pressure
c)
winds along surface
d)
Sun
28.
Which of the following statements best describes the subatomic particle at location X?
a)
It has a very large mass and is negatively charged.
b)
It has almost no mass and no charge.
c)
The charge of the subatomic particle at location x is opposite of the charge at location y.
d)
It has a positive charge similar to location y.
29.
What is the net force acting on this balloon?
a)
7 N to the right
b)
10 N to the right
c)
6 N to the left
d)
4 N to the right
30.
Capt. Sanchez announces to the passengers on his airplane they are traveling at 300 mph 950 eastbound. He is describing the ___________________ of the airplane.
a)
velocity
b)
speed
c)
direction
d)
acceleration
31.
A train is traveling away from you at a constant speed. What would a distance-time graph look like for this train?
a)
A
b)
B
c)
C
d)
D
32.
What is the formula for force?
a)
F=M/A
b)
F=A/M
c)
F=M*A
d)
F=M*F
33.
What is the acceleration of a 50 kg object pushed with a force of 500 newtons? To solve this problem you must do -
a)
500 ÷ 50
b)
50 ÷ 500
c)
500 x 50
34.
The mass of a car is 1000 kg. How much force would be required to accelerate the car at a rate of 3 m/s2?
a)
1000 ÷ 3
b)
3 ÷ 1000
c)
1000 x 3
35.
What is the force on a 1000 kg elevator that is falling freely at 9.8 m/s2? To solve this problem you must do -
a)
1000 ÷ 9.8
b)
9.8 ÷ 1000
c)
1000 x 9.8
36.
Which of the following is a unit of speed?
a)
km/hr
b)
hr
c)
km
d)
s
37.
Which of the following is a unit of distance ?
a)
miles/hr
b)
hr
c)
km
d)
min
38.
Where is the mass of the atom located?
a)
Nucleus
b)
Proton
c)
Neutron
d)
Positive
39.
_____ - made up of two or more elements.
a)
Element
b)
Compound
40.
_____ - only has one capital letter.
a)
Element
b)
Compound
41.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
42.
There are always an equal number of protons and __________ in an atom.
a)
electrons
b)
neutrons
c)
mass
d)
elements
43.
If you take the mass number and subtract the atomic number (# of protons), you get the number of _______________
a)
electrons
b)
protons
c)
atoms
d)
neutrons
44.
Which is an electron?
a)
A
b)
B
c)
C
45.
____________ is a push or pull on an object.
a)
Motion
b)
Force
c)
Speed
d)
Velocity
46.
Force is measured in ________.
a)
Joules
b)
Kilograms
c)
Pounds
d)
Newtons
47.
(8.5C) A student is studying the ways different elements are similar to one another. Diagrams of atoms from four different elements are shown below.
Which two atoms are of elements in the same group in the periodic table?
Which two atoms are of elements in the same group in the periodic table?
a)
Atom 1 and Atom 2
b)
Atom 1 and Atom 4
c)
Atom 2 and Atom 3
d)
Atom 3 and Atom 4
48.
_________ is an objects tendency to resist changes in motion (ex. speeding up, slowing down, stopping)
a)
Force
b)
Inertia
c)
Friction
d)
Newton
49.
F=ma
a)
Newton's
1st
Law of Motion
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
50.
For every action, there is an equal and opposite reaction.
a)
Newton's
1st
Law of Motion
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
51.
An automobile you are riding in suddenly stops, but you continue to go forward.
a)
Newton's
1st
Law of Motion
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
52.
When the force on a car is doubled, the acceleration is doubled.
a)
Newton's
1st
Law of Motion
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
53.
The picture of the position vs. time graph shows an object that is...
a)
accelerating/speeding up
b)
moving at a constant speed
c)
not moving
d)
accelerating/slowing down.
54.
What law of motion does this picture represent?
a)
Newtons 1st law
b)
Newtons 4th law
c)
Newtons 3rd law
d)
Newtons 2nd law
55.
What Newtons law does this picture represent
a)
Newtons 2nd law
b)
Law of gravity
c)
Newtons 1st law
d)
Newtons 5th law
56.
A distance vs. time graph shows an object's
a)
frame of reference
b)
speed
c)
acceleration
d)
favorite food
57.
On a distance-versus-time graph, a straight line ALWAYS indicates that an object’s speed is _____.
a)
constant
b)
zero
c)
increasing
d)
decreasing
58.
When something has speed in a certain direction it is called ___________.
a)
motion
b)
position
c)
velocity
d)
speed
59.
LT4: The graph shows Ashley riding her bike to Maria's house.
What is occurring from point A to point B?
What is occurring from point A to point B?
a)
they are traveling at a constant speed
b)
they are decreasing in speed
c)
they stopped to take a break
60.
LT4: The graph shows Ashley riding her bike to Maria's house.
What was occurring from point B to point C?
What was occurring from point B to point C?
a)
She was increasing her speed.
b)
She stopped for 4 minutes
c)
She was decreasing in speed
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