One of the most remarkable tool inventions of the 20th century was the plasma cutter. Today, it is becoming increasingly useful in more and more fields of work, as well as being smaller and more affordable. Find out how much do you know about the plasma cutter by taking this quiz.
Why do we use metal components to build industrial and everyday items?
because they're both strong and durable
because they reflect light
because they conduct electricity well
When was the plasma cutter introduced?
during World War I
during World War II
during the Persian Gulf War
What was the breakthrough discovery that led to the invention of the plasma cutter?
Atomic particles could be harnessed to form highly compressed gases.
Gas could be heated to extreme temperatures and transformed into plasma.
Charging a gas with an electric current protected a weld from oxidation.
During the 1960s, what did engineers discover about the cutting properties of a gas that was heated to very high temperatures?
When used as a tool, it worked more like a welder than a saw.
When used as a tool, it worked more like a cutting saw than a welder.
When used as a tool, it can cut and weld simultaneously.
What are the four states of matter in the universe?
atomic, nuclear, dark, extrasensory
earth, wind, fire, water
solid, liquid, gas, plasma
Which state of matter fits the description: It has a fixed volume but no fixed shape?
What happens to molecules with the application of heat?
They repel each other.
They become more tightly bound.
They break loose of the bonds that bind them together in their colder state.
In a plasma, where would you find the electrons?
separated from the nucleus
within the nucleus
surrounding the protons
What is another name for the positively charged nuclei?
What happens to rapid-moving electrons when they collide with one another in a plasma state?
They break apart.
They release enormous energy.
They bond incredibly strongly.
What is a good example of plasma on our planet Earth?
Can cool plasma cut metals?
Sometimes, depending on the cutting tool and the type of metal.
Yes, it can.
No, it can't.
How small can a plasma cutter be?
about the size of a small television
small enough to be handheld
as small as a pinhead
Which of these gases might be found in a plasma cutter?