Understanding Electricity and Electric Charge

What does the Bohr model help to explain?

• The principles of electric current

• The process of ionization

• The structure of an atom

• The behavior of electrons in conductors

What determines the reactivity of an atom?

• The number of protons in the nucleus

• The total number of electrons and protons

• The speed at which electrons orbit the nucleus

• The number of electrons in the valence shell

Which materials allow electrons to move freely?

• Conductors

• Non-metals

• Insulators

• Semiconductors

What happens when an atom loses electrons?

• It becomes a negative ion

• It remains neutral

• It becomes a positive ion

• Its reactivity decreases

What is the unit of measurement for electric current?

• Volt

• Coulomb

• Ohm

• Ampere

Which fuel contains the most SULFUR?

• wood

• oil

• natural gas

• coal

Type of fuel source that causes DEFORESTATION

• Solar energy

• Nuclear fission

• Geothermal

• Biomass

Which of the following 2 use PASSIVE solar energy?

• south-facing room with windows

• solar oven

• solar panels

• photovoltaic cells

Differences in __________ SEPARATE the various components of crude OIL.

• viscosity

• sulfur

• solubility

• boiling points

What is the half-life of Iodine 131?

• 32 days

• 24 days

• 16 days

• 8 days