GH PHYSICS WEEK 20

Inventions

100

What kind of electricity enables a photocopier to produce instant copies?

Static electricity

200

An AIR CLEANER uses this to remove fine particles from the air.

Electrostatic precipitator

300

What type of filter is used in an air cleaner?

Carbon filter

400

Atoms that have an electrical charge are called this.

IONS

500

Name the two types of electrical current

DC -  Direct Current

AC- Alternating Current

The Atom Family

100

I am entirely neutral and unaffected by electromagnetism.

Neutron

200

I am the opposite of normal matter

Antimatter

300

I am the force of attraction that holds an atom's nucleus together by holding quarks together.

Strong Force

400

We form larger subatomic particles such as neutrons and protons.  We hang out in groups.

Quarks

500

It is believed that I am the particle that gives matter its mass.

Higgs Boson

Vocab

100

A device containing an electric cell or a series of electric cells storing chemical energy that can be converted into electrical power, usually in the form of direct current.  

battery

200

The opposition offered by an electrical conductor to the flow of a current through itself,

resistance

300

Define Voltage

noun

1. A measure of the difference in electric potential between two points in space, a material, or an electric circuit, expressed in volts.   
2. Electric potential or potential difference, expressed in volts.  
3. The amount of electrostatic potential between two points in space.  

400

This flow of charged particles, such as electrons or ions, moving through an electrical conductor or space is called _________________.

An electric current

500

Define Ohm's Law

 Electric current through a conductor between two points is directly proportional to the voltage across the two points.

True or False

100

Neutrinos travel close to the speed of light

True

200

Humans can generally see ten thousand colors

False -  10 Million

300

Electrons are positively charged

False

400

Antimatter is a billion times more powerful than burning oil.

True

500

Protons are the key to nuclear reactions

False- neutrons

Review

100

What particle orbits an atom's nucleus?

electron

200

Melanin blocks the absorption of what vitamin?

Vitamin D

300

Up, down, top, bottom, strange and charm are different types of these.

Quarks

400

What is cost per milligram of antimatter?

$300 Billion

500

When an atom's nucleus splits, what is released?

radioactive alpha particles