pm 6

An atomic nucleus consists of balanced numbers of protons and neutrons and, therefore, has no electrical charge.

• true

• false

The tendency for electrons to jump from one atom to another makes electricity possible.

• true

• false

n ampere is a unit of measure related to a certain number of electrons passing a given point per second.

• true

• false

Ohm's law states that current in a circuit is proportional to the voltage and the resistance.

• true

• flase

Electrical power is measured in watts (W).

• true

• false

The power formula is the relationship between ___ in a circuit.

• power, polarity, and conductivity

• power, resistance, and voltage

• power, resistance, and current

• 
  power, voltage, and current

A conductor is a material that has little ___ .

• resistance

• electrical charge

• insulation

• polarity

A(n) ___ is a subatomic particle that has a positive electrical charge of one unit.

• proton

• neutron

• electron

• atom

Current is measured in ___ .

• volts

• amperes

• ohms

• watts

A(n) ___ is a subatomic particle that has a negative electrical charge of one unit.

• proton

• neutron

• electron