1470 25/Sp 2P3

Which subatomic particles have an electrical charge?

• Electrons/Protons

• Neurons/Electrons

• Photons/Protons

• Neurons/Photons

A proton has a negative charge, and an electron has a positive charge.

• True

• False

Current is measured in units called ______________________.

• Amperes

• Volts

• Ohms

• Resistance

Direct current reverses direction continuously as it flows through a circuit.

• True

• False

Voltage is the driving force that causes current flow.

• True

• False

Voltage is measured in units called ______________________.

• amperes

• volts

• ohms

• resistance

 

Resistance ______________________ the movement of electrons.

• Accelerates

• Opposes

• attracts

• insulates

Resistance is measured in units called ______________________.

• Amperes

• Volts

• Ohms

• Resistanc

If voltage remains constant, Ohm’s Law can be used to predict the effect that a change

in resistance will have on current.

• True

• False

The two major differences between series and parallel circuits are (1) the ways in which they are

arranged, and (2) the ways in which current, voltage, and resistance behave.

• True

• False