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Worksheets

FPC

Total questions: 12

Worksheet time: 4mins

Name
Class
Date
1.

How is plasma?

a)

3000 degrees Fahrenheit and above

b)

3000 degrees Fahrenheit and below

2.

Plasma can be made in a laboratory by

a)

melting a solid to let gas fumes out

b)

letting hot gas out roam in the laboratory

c)

heating gas to extremely hot temperatures

3.

What does Plasma consist?

a)

Liquid

b)

Neutrons and proton atoms in the gas

c)

Gas particles

d)

A gas of ions atoms

4.

which of these DO NOT consist of plasma?

a)
b)
c)
d)
e)
5.

In a plasma, the electrons are no longer associated with a particular nucleus

a)

true

b)

false

6.

where can plasma be found?

a)

lightning

b)

moon

c)

led light bulbs

d)

fluorescent lights

e)

aurora

7.

is there a thing such as cold plasma?

a)

no, there is only hot plasma that can go over 1000 degrees

b)

yes, it is often created using strong electric fields

c)

no, there is no such thing as a cold or hot plasma. it is only in between due to the atoms making it in between.

8.

who discovered plasma?

a)

Sir William Crookes

b)

Thomas Francois D'Alibard

c)

Marie Curie

d)

Galen

9.
___________ cutting is a process that cuts through electrically conductive materials by means of an accelerated jet of hot plasma. 
a)
Plasma
b)
Oxy-Acetylene
c)
Oxy- Propolene
d)
None of the above
10.
__________ ________ will remove the molten metal when plasma cutting
a)
Compressed Aluminum
b)
Electrified Cutter
c)
Compressed Air
d)
Presurized water
11.
Identify the undesired material on the underside of metal which has been cut with the arc from a plasma cutter.
a)
Rust
b)
Burr
c)
Swarf
d)
Dross
12.
What phase change occurs between points B and C if heat is added?
a)
Freezing
b)
Melting
c)
Boiling
d)
Condensing