Objective: Introduction to Electrical Circuits

Atomic structure as it relates to electricity involves the components of an atom. Which of the following correctly identifies the components of an atom?

• Protons, neutrons, and electrons

• Protons, photons, and neutrons

• Electrons, positrons, and neutrons

• Ed Edd and Eddy

Atomic structure as it relates to electricity involves the movement of which subatomic particle, and what is the role of magnetism in electrical devices?

• Electrons; Magnetism is used to generate and control electric currents in devices.

• Protons; Magnetism has no role in electrical devices.

• Neutrons; Magnetism only affects non-electrical devices.

• Electrons; Magnetism is unrelated to electricity.

A basic electrical circuit contains a ______ source, a load, and conductors to carry the current.

• voltage

• resistance

• magnetic

• Football

Current flow (in amps) is affected by the ______ (in ohms) presented by the load.

• resistance

• capacitance

• inductance

• weight

The amount of energy consumed by a load is often expressed in ______ (W).

• watts

• joules

• amperes

• cheeseburgers

Which of the following is NOT a component of a basic electrical circuit?

• Voltage source

• Load

• Conductor

• Magnet

Refer to the diagram of the simple circuit. What component is labeled as the 'load' in the diagram?

• Light bulb

• Switch

• Battery

• Wire

The nucleus of an atom contains one or more positive particles called _________?

• protons

• neutrons

• electrons

• photons

The nucleus of an atom is orbited by one or more negative particles called _________?

• electrons

• protons

• neutrons

• positrons

Refer to the diagram of the atom. What is the charge of the particle labeled 'NUCLEUS'?

• Positive (+)

• Negative (-)

• Neutral (0)

• No charge