Physical Science Electricity

Electricity is the flow of what?

• Protons (at least in solids)

• Neutrons

• Electrodes

• Electrons (at least in solids)

The electrical "pressure" that pushes charges through a circuit is called what?

• Voltage

• Current

• Electrical Power

• Resistance

The amount of electricity flowing through a wire is called what?

• Voltage

• Current

• Electrical Power

• Resistance

How does the length of a wire affect its resistance?

• Longer wire = more resistance

• Shorter wire = more resistance

• The material the wire is made of is the only thing that affects resistance

• The length doesn't affect the resistance, just the diameter of the wire

What happens in a wet cell battery when a low current is passed through the battery in reverse of the normal flow?

• The battery is re-charged (because the chemical reaction occurs in reverse)

• The battery will get hot and explode

• Nothing, batteries only work in one direction

• The chemical reactions will undo themselves and atoms will begin to split in a chain reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

This is the unit used to measure resistance.

• Volts

• Amperes

• Killowatts

• Ohms

• Joules or Kilowatt-hours

This is a unit for Electrical Power. It is 1,000 Joules per second.

• Volt

• Ampere

• Ohm

• Kilowatt

• Joule or Kilowatt-hour

This is the unit of electrical flow. It measures current.

• Volt

• Ampere

• Ohm

• Kilowatt

• Joule or Kilowatt-hour

Resistance in a wire causes electrical energy to be converted into which type of energy? (Ohms Law)

• Potential

• Elastic

• Thermal

• Chemical

• Nuclear

Tags

NGSS.MS-PS3-3

An object becomes positively charged when it ___________.

• Loses Electrons

• Gains Electrons

• Loses Protons

• Gains Neutrons

• Loses Neutrons

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5