Name: 
 

Chapter 2



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

1. 

A(n) ____ is a substance that cannot be chemically divided into a simpler substance.
a.
molecule
c.
atom
b.
element
d.
matter
 

2. 

The number of ____ in the nucleus determine what kind of element an atom is.
a.
protons
b.
neutrons
c.
protons and neutrons
 

3. 

The atomic number of an element is the same as the number of ____ in the nucleus.
a.
neutrons
b.
protons
c.
neutrons and protons
 

4. 

A basic law of physics states that a spinning object will pull away from its center point and that the faster it spins, the greater the ____ force becomes.
a.
attractive
c.
positive
b.
centrifugal
d.
electrical
 

5. 

Any electrons located in the outer shell of an atom are known as ____ electrons.
a.
orbital
c.
neutral
b.
valence
d.
mass
 

6. 

A ____ is generally made from material that contains one or two valence electrons.
a.
insulator
c.
conductor
b.
resistor
d.
element
 

7. 

Rubber, wood, plastic, and glass are good examples of ____ materials.
a.
conductive
c.
insulator
b.
neutral
d.
valence
 

8. 

Producing electricity with heat is referred to as the ____ effect.
a.
photon
c.
Seebeck
b.
piezoelectric
d.
static
 

9. 

Producing electricity from light involves the use of particles called ____.
a.
photons
c.
protons
b.
neutrons
d.
electrons
 

10. 

____ can be produced when electrons move from one energy level to another.
a.
Protons
c.
Neutrons
b.
Photons
d.
Matter
 



 
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