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Physical Science CSMA Review

Total questions: 40

Worksheet time: 51mins

Name
Class
Date
1.
When a firecracker explodes, chemical energy changes to light and sound energy.  This is an example of how energy:
a)
Can be transformed as well as created or destroyed.
b)
Can be transformed but not created or destroyed.
c)
Cannot be transformed, created, or destroyed. 
d)
Cannot be transformed and created, but can be destroyed. 
2.
The stored energy in a battery can BEST be described as:
a)
Thermal
b)
Nuclear
c)
Kinetic
d)
Chemical
3.
An object at rest begins to move when:
a)
Balanced forces act on it.
b)
An unbalanced, or net force, acts on it. 
c)
Forces are no longer acting on it. 
d)
An object at rest stays at rest no matter what. 
4.
A 200-kg student kicks a 2.5 kg ball with a force of 500 N.  What force does the ball apply on the student?
a)
200 N
b)
1250 N
c)
300 N
d)
500 N
5.
Newton's 3rd Law states that:
a)
An object in motion will stay in motion unless acted on by an unbalanced force. 
b)
For every action, there is an equal and opposite reaction. 
c)
The acceleration of an object depends on the mass of the object and the force applied to it.
d)
Energy cannot be created or destroyed, only transferred. 
6.
A car is traveling at a constant speed of 30 m/s.  The driver has to come to a complete stop to avoid hitting a chupacabra. The time it took to stop was 5 seconds.  What is the average acceleration of the car?
a)
2 m/s/s
b)
-6 m/s/s
c)
6 m/s/s
d)
25 m/s/s
7.
In which of the following situations is acceleration occurring?
a)
A Ferrari driving at a constant speed of 100 mph.
b)
An airplane traveling in a straight line at a constant speed.
c)
A Prius rounding a curve driving at a constant speed of 55 mph. 
d)
A car sitting in the driveway. 
8.
An atom has 29 protons, 29 electrons, and 35 neutrons.  What is the mass number of the atom?
a)
29
b)
35
c)
93
d)
64
9.

Which pair of elements have similar chemical properties?

a)

Ca and F

b)

Na and Cl

c)

Ne and Ar

d)

Li and Ne

10.
In the periodic table, the rows are called ___________ and they tell us _________.
a)
Groups, Number of valence electrons
b)
Groups, Number of energy levels
c)
Periods, Number of valance electrons
d)
Periods, Number of energy levels
11.
An unknown substance has a mass of 37 grams and a volume of 10 cubic centimeters.  What is the density of the unknown substance?
a)
3.7 g
b)
3.7 g/cm ^3
c)
370 g
d)
370 g/ cm ^3
12.
A gold bar was found to have a mass of 45 g.  Gold has a density of 19.32 grams per cubic centimeters.  What is the volume of the gold bar?
a)
869.4 g
b)
2.32 cm ^ 3
c)
2.32 g 
d)
64 g
13.
When atoms covalently bond, they:
a)
Gain protons
b)
Lose protons
c)
Share protons
d)
Share electrons
14.
NaCl is a compound that results from what kind of bonding?
a)
Covalent
b)
Ionic
c)
Hydrogen
d)
Metallic
15.
Which situation provides the best evidence that a chemical reaction has taken place?
a)
A metal strip bends when heated. 
b)
A cold piece of glass breaks when placed in hot water.
c)
 Two solutions mixed in a beaker produce a solid.
d)
A chemical completely dissolves in water and the temperature remains constant.
16.
How many hydrogen atoms are in two molecules of glucose 2C6H12O6
a)
48
b)
12
c)
24
d)
12
17.

To be correctly balanced, what numbers should precede Ca and O2 in the following equation? ___Ca + ___O2 --> 2CaO2

a)

2, 2

b)

3, 2

c)

4, 2

d)

2, 4

18.
Which of the following states the Law of Conservation of Mass?
a)
Atoms are rearranged in a chemical reaction and some join new molecules. 
b)
Two compounds combine to form a new compound with different properties. 
c)
Mass cannot be created or destroyed in a chemical reaction. 
d)
Energy is neither created nor destroyed in a chemical reaction. 
19.
Is the following equation balanced or unbalanced? 
AlBr3 + 3K --> 3KBr + Al 
a)
Balanced
b)
Unbalanced
20.
The weight of a person on Earth is 6 times his or her weight on the Moon.  What type of force is responsible for a person's weight?
a)
Inertia
b)
Electromagnetic
c)
Gravitational
d)
Mechanical
21.

Jane wants to measure the distance her kangaroo can jump.  Sarah's final results should be reported in which metric unit?

a)

Meters

b)

Liters

c)

Grams

d)

Miles

22.

A substance change state or phase from a solid to a liquid; the phase change is ___________.

a)

releasing energy

b)

endothermic

c)

exothermic

d)

changing chemical composition

23.
When a substance is cooled, its particles typically
a)
move slower and closer together
b)
move faster and farther apart
c)
do not change size, and their motion does not change
d)
becomes smaller, and their motion does not change
24.
A force of 20 N acts on a 5 kg block.  What is the acceleration? 
a)

4 g

b)

4 ms2\frac{m}{s^2}

c)

50 ms2\frac{m}{s^2}

d)

50 g

25.
What force is required to accelerate a car at a rate of 2 m/s/s if the car has a mass of 3000 kg?
a)
1500 N
b)
1500 g
c)
6000 g
d)
6000 N
26.
What is the mass of a falling rock if it produces a force of 147 N? 
a)
147 g
b)
147 N
c)
15 g
d)
15 N
27.

Information learned using the all senses

a)

observation

b)

conclusion

c)

prediction

d)

communicate

28.
A possible explanation to a problem that has not yet been tested. 
a)
data
b)
theory
c)
hypothesis
d)
fact
29.

Which statement is an inference about this picture?

a)

The van is beige or tan color.

b)

The van ran into KFC.

c)

The driver was hungry.

d)

Red and white are part of the KFC building.

30.

Hydrochloric acid reacts with magnesium to produce hydrogen gas.

a)

physical change

b)

chemical change

31.

Jack was observing a chemical reaction. He wrote on his lab notebook some observations and some inferences about the chemical reaction. Which one of his notes is an inference ?

a)

it is an exothermic reaction because the temperature increased

b)

one of the products of the chemical reaction was a gas because a gas was given off

c)

after 2 minutes a precipitate was formed

d)

the product is expected to be an acid

32.
What is the name of this element?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
33.
If an atom loses an electron it is a(n)
a)
Positive ion
b)
Negative ion
c)
Isotope
d)
Neutral Atom
34.
Carbon-14 is an example of a(n)
a)
Positive ion
b)
Negative ion
c)
Isotope
d)
Neutral Atom
35.
The group number tells us how many _________ there are in an element.
a)
groups
b)
valence electrons
c)
energy levels
d)
chemicals
36.
How many valence electrons do elements in group 17 have in their outer energy level?
a)
7
b)
17
c)
1
d)
0
37.
What group on the periodic table is stable on its own because they have all their valence electrons?
a)
Noble Gases
b)
Halogens
c)
Alkali
d)
Alkaline Earth
38.

What is the location of the electron?

a)

the free floating negatively charged electron cloud (energy levels)

b)

the free floating positively charged electron cloud (energy levels)

c)

the very dense positively charged electron orbital

d)

the positively charged very dense nucleus

39.
Which wave has the largest amplitude?
a)
A
b)
B
c)
C
d)
none of the above
40.

What is the wavelength and the amplitude of the wave?

a)

10 cm, 24 cm

b)

20 cm, 12 cm

c)

20 cm, 24 cm

d)

10 cm, 12 cm

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