WorksheetsPhysical Science Practice Exam
Total questions: 80
Worksheet time: 3590secs
Name
Class
Date
1.
Changes in one or more physical properties
a)
Physical change
b)
Chemical change
c)
Chemical property
d)
Physical property
2.
Simplest pure substance
a)
Element
b)
Homogeneous mixture
c)
Compound
d)
Heterogeneous mixture
3.
Describes how a substance changes into a new one
a)
Chemical property
b)
Colloid
c)
Solution
d)
Physical property
4.
Changes that result in a new substance formed
a)
Chemical change
b)
Physical change
c)
Physical property
d)
Chemical property
5.
Which of the following is a chemical property?
a)
Flammability
b)
Density
c)
Viscosity
d)
Melting point
6.
Which of the following is a physical change?
a)
Burning
b)
Rusting
c)
Cooking
d)
Cutting
7.
This substance has properties that are very different from the materials that make it up.
a)
Element
b)
Compound
c)
Mixture
d)
Solution
8.
Which is an example of a heterogeneous mixture?
a)
Salad dressing
b)
Water
c)
Salt
d)
Sugar
9.
The simplest part of an element is a(n) _____________
a)
Atom
b)
Particle
c)
Molecule
d)
Unit
10.
Glass shattering
a)
Physical Change
b)
Chemical Change
11.
Bicycle rusting
a)
Physical Change
b)
Chemical Change
12.
Salt
a)
Heterogeneous
b)
Homogeneous
13.
Lucky Charms
a)
Homogeneous
b)
Heterogeneous
14.
Change from Gas to Solid is called........
a)
Sublimation
b)
Deposition
c)
Fusion
d)
condensation
15.
No Definite Shape and No Definite Volume
a)
Gas
b)
Liquid
c)
Solid
16.
No definite shape, but has a definite volume
a)
Gas
b)
Liquid
c)
Solid
17.
What is happening at "D" on the graph?
a)
Water is boiling
b)
water is freezing
c)
water is melting
d)
the sublimation of water
18.
The change of state from a liquid to a solid
a)
freezing
b)
melting
c)
evaporation
d)
boiling
19.
Change of state from a solid to a liquid.
a)
sublimation
b)
deposition
c)
freezing
d)
melting
20.
What is the change of state from a gas to a liquid called?
a)
deposition
b)
sublimation
c)
evaporation
d)
condensation
21.
Change of state from a solid directly to a gas is called
a)
deposition
b)
melting
c)
evaporation
d)
sublimation
22.
The opposite of vaporization is ________.
a)
melting
b)
freezing
c)
boiling
d)
condensation
23.
What does this picture represent?
a)
solid
b)
liquid
c)
gas
d)
plasma
24.
What does this picture represent?
a)
solid
b)
liquid
c)
gas
d)
plasma
25.
What does this picture represent?
a)
solid
b)
liquid
c)
gas
d)
plasma
26.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
27.
How many protons does this atom have?
a)
2.5
b)
6
c)
5
d)
10.811
28.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
29.
Which of these is the electron?
a)
A
b)
B
c)
C
d)
D
30.
How many protons are in Zirconium (Zr) ?
a)
40
b)
91
c)
30
d)
65
31.
Which element has 56 electrons ?
a)
Barium
b)
Boron
c)
Beryllium
d)
Bromine
32.
Which element has 12 neutrons ?
a)
Magnesium
b)
Sodium
c)
Silicon
d)
Sulfur
33.
Which element has 30 neutrons and 26 electrons?
a)
Iron
b)
Nickel
c)
Zinc
d)
Silver
34.
What element is represented in this Bohr Model? ?
a)
Helium
b)
Oxygen
c)
Sodium
d)
Phosphorous
35.
Which scientist conducted experiments using alpha particles and thin gold foil, which later helped him determine that the atom was mostly empty space with a central nucleus?
a)
Ernest Rutherford
b)
Kneels Bore
c)
Niels Bohr
d)
Earnest Rutherfraud
36.
Which scientist discovered the electron, which helped him develop a model of the atom?
a)
Niels Bohr
b)
John Dalton
c)
Ernst Rutherford
d)
J.J Thompson
37.
Who is the scientist who proposed the "planetary¨ model of an atom where the electrons revolve around the nucleus?
a)
Dmitri Mendeleev
b)
Niels Bohr
c)
Ernest Rutherford
d)
Copernicus
38.
Which two elements would have similar properties?
a)
Li, Be
b)
P, S
c)
Ca, Ba
d)
Fr, Po
39.
What element is in group 17, period 5?
a)
vanadium
b)
iodine
c)
astatine
d)
rubidium
40.
Which element has 5 valence electrons and 4 energy level?
a)
arsenic
b)
zirconium
c)
antimony
d)
hydrogen
41.
Isotopes have different numbers of
a)
protons
b)
neutrons
c)
electron
d)
properties
42.
How many dots would a Lewis dot diagram of Sulfur have?
a)
6
b)
16
c)
32
d)
2
43.
A bond between a metal and a nonmetal is a(n) ______ bond.
a)
Ionic
b)
Covalent
c)
Metallic
d)
Does not form
44.
A bond between a nonmetal and a nonmetal is a(n) ______ bond.
a)
Ionic
b)
Covalent
c)
Metallic
d)
Does not form
45.
In an ionic bond, electrons are ____.
a)
Transfered
b)
Shared
c)
In a sea of electrons
d)
Destroyed
46.
In a covalent bond, electrons are ____.
a)
Transfered
b)
Shared
c)
In a sea of electrons
d)
Destroyed
47.
Name CaCl2
a)
Calcium chlorine
b)
Chlorine calcium
c)
Calcium chloride
d)
Calcium dichloride
48.
Name CO3
a)
Carbon trioxide
b)
Carbon oxide
c)
Monocarbon trioxide
d)
Tricarbon Trioxide
49.
Write the formula for aluminum oxide
a)
AlO
b)
Al3O2
c)
Al2O3
d)
Al3O3
50.
Write the formula for Trisulfur dioxide
a)
S3O2
b)
SO
c)
S2O3
d)
SO3
51.
4Si + S8 --> 2Si2S4
a)
Synthesis
b)
Decomposition
c)
Single displacement
d)
Double displacement
52.
3Ca + 2AlCl3 --> 3CaCl2 + 2Al
a)
Synthesis
b)
Decomposition
c)
Single diplacement
d)
Double displacement
53.
3KOH + H3PO4 --> K3PO4 + 3H2O
a)
Synthesis
b)
Decomposition
c)
Single displacement
d)
Double displacement
54.
2Pb(NO3)2 --> 2PbO + 4NO2 + O2
a)
Synthesis
b)
Decomposition
c)
Single displacement
d)
Combustion
55.
In the equation,
2Mg + O2 ---> 2MgO, which are the reactants?
2Mg + O2 ---> 2MgO, which are the reactants?
a)
Mg and O2
b)
MgO
c)
Mg and MgO
d)
O2 and MgO
56.
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
57.
A car accelerates from a standstill to 80 km/s in 10 seconds. What is its acceleration?
a)
80 km/s2
b)
8 km/s2
c)
-8 km/s2
d)
-80 km/s2
58.
A car accelerates from 35 km/s to 5 km/s in 5 seconds. What is it's acceleration?
a)
-60 km/s2
b)
6 km/s2
c)
-6 km/s2
d)
60 km/s2
59.
A plane traveled for 3.5 hours at a velocity of 600 km/hr. What distance did it travel?
a)
-2100 km
b)
21 km
c)
171 km
d)
2100 km
60.
A 2 kg cart has a momentum of 10 kg m/s. What is its velocity?
a)
22 m/s
b)
.2 m/s
c)
5.0 m/s
d)
20 m/s
61.
How much time does it take for a car travelling at 65 miles/hour to travel 300 miles?
a)
4.6 hours
b)
0.22 hours
c)
19,500 hours
d)
none of the above
62.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
63.
Which is the best example of Newton's First Law of Motion?
a)
a basketball thrown in the air falls to the ground
b)
a soccer ball remains motionless until it is kicked by a player
c)
a baseball player swings at an approaching ball
d)
an ice skater pushes back from a wall and moves backwards
64.
What law of motion does this picture represent?
a)
Newtons 1st law
b)
Newtons 4th law
c)
Newtons 3rd law
d)
Newtons 2nd law
65.
A pair of scissors is a ______ class lever.
a)
1st
b)
2nd
c)
3rd
66.
A bar that is free to pivot about a fixed point is a __________.
a)
Ramp
b)
Lever
c)
Screw
d)
Fulcrum
67.
If the MA=7, how many times is the effort force multiplied?
a)
7
b)
10
c)
5
d)
3
68.
A force of 5,000N is applied to a stationary wall. How much work is performed?
a)
5000
b)
50000
c)
0
d)
1
69.
An ant does 2J of work while dragging a 0.20N grain of sugar. How far does the ant drag the sugar?
a)
10
b)
0.4
c)
0.1
d)
2.20
70.
A bulldozer performs 8,000 J of work pushing dirt a distance of 32 m. What is the total force exerted by the bulldozer?
a)
250
b)
256000
c)
0.004
d)
5
71.
If you can use 500W of power in 25 seconds, how much work can you accomplish?
a)
12500
b)
20
c)
0.05
d)
10
72.
A 500N car is lifted 25m in 10 seconds. What is the power?
a)
1250
b)
12500
c)
20
d)
125000
73.
If a generator uses 25,000W of power doing 1250J of work, how long did it take?
a)
20
b)
0.05
c)
31250000
d)
31250
74.
When a pendulum swings, at which point is potential energy at its greatest
a)
1
b)
2
c)
3
d)
4
75.
How much gravitational potential energy does a 75 kg diver have stepping off the edge of a 5 m platform? PE = mgh
a)
375 J
b)
15 J
c)
147 J
d)
3, 675J
76.
How much kinetic energy does a moving object have if its mass is 100 kg and it is moving at a speed of 5 meters per second? KE = 1/2 mv2
a)
2,500 J
b)
250 J
c)
1,250 J
d)
125,000 J
77.
At which point is potential energy greatest
a)
W
b)
X
c)
Y
d)
Z
78.
What is the transfer of heat by movement of liquids or gases?
a)
Radiation
b)
Convection
c)
Conduction
d)
Heat
79.
What is the transfer of heat by direct contact?
a)
Convection
b)
Electromagnetic waves
c)
Radiation
d)
Conduction
80.
A red ball and a yellow ball have the same mass. The red ball is resting 8 meters above the yellow ball. Compare their kinetic energies.
a)
Their gravitational potential energies are the same.
b)
Their kinetic energy is the same.
c)
The kinetic energy of the red ball is less than the Ek of the yellow ball.
d)
The gravitational potential energy of the red ball is more than the Eg of the yellow ball.
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