Mod 3, Unit 1, Quiz 1, Basic Electricity
Which of the following is a characteristic of a good conductor?
A. It has few free neutrons.
B. It has a great number of free electrons.
C. It is inexpensive.
D. It has many free protons. - answer It has a great number of free electrons.
Which of the following is the Basis of Electricity?
A. The movement of neutrons from one atom to another.
B. The movement of outer orbit electrons from one atom to another.
C. The repulsion of electrons by the nucleus.
D. The movement of protons from one atom to another. - answer The movement of
outer orbit electrons from one atom to another.
What does the term "Dielectric" mean?
A. The same as electrolyte.
B. A good conductor.
C. Insulator.
D. Electrically operated. - answerInsulator.
Which of these materials could not be used as an insulator?
A. Glass
B. Lead
C. Wood
D. Plastic - answerLead
What is the direction of current flow in the external circuit? [Outside of the battery]
A. From north to south.
B. From negative to positive.
C. From positive to negative.
D. From south to north. - answerFrom negative to positive.
Which of the following metals is the best conductor (one with least resistance)?
A. Silver
B. Gold
C. Aluminum
D. Copper - answerSilver
An atom that has lost or gained electrons:
A. Is said to be ionized.
B. Has a positive charge.
C. Becomes electrical neutral.
, D. Is negatively charged. - answerIs said to be ionized.
Using metric prefixes, 0.55 amperes is equal to:
A. 0.000550 milliamperes.
B. 550 microamperes.
C. 0.55 milliamperes.
D. 550 milliamperes. - answer550 milliamperes.
Which of the following statements is NOT correct?
A. A positive charge occurs when there is an excess of electrons.
B. Electrons revolve around the nucleus of an atom.
C. Like charges repel.
D. Unlike charges attract. - answerA positive charge occurs when there is an excess of
electrons.
If you reduce the element silicon to its smallest possible part that still has all the
properties of silicon, it would be:
A. A neutron.
B. An electron.
C. A molecule.
D. An atom. - answerAn atom.
Electricity can be generated by:
A. Friction.
B. Combining sodium and chlorine.
C. Heating a glass rod.
D. Combining carbon and oxygen. - answerFriction.
The nucleus of an atom is made up of protons and neutrons. How are the protons
electrically charged?
A. Neutrally charged
B. Positively charged
C. Negatively charged
D. Uncharged - answerPositively charged
A good insulating material is one in which:
A. Electrons are easily moved from one atom to another.
B. Electrons are not easily moved from one atom to another.
C. There are fewer electrons than protons.
D. There are more electrons than protons. - answerElectrons are not easily moved from
one atom to another.
Which of the following is true about atoms?
A. They are all positively charged.
B. They all have electrons and protons.
C. They are all negatively charged.
Which of the following is a characteristic of a good conductor?
A. It has few free neutrons.
B. It has a great number of free electrons.
C. It is inexpensive.
D. It has many free protons. - answer It has a great number of free electrons.
Which of the following is the Basis of Electricity?
A. The movement of neutrons from one atom to another.
B. The movement of outer orbit electrons from one atom to another.
C. The repulsion of electrons by the nucleus.
D. The movement of protons from one atom to another. - answer The movement of
outer orbit electrons from one atom to another.
What does the term "Dielectric" mean?
A. The same as electrolyte.
B. A good conductor.
C. Insulator.
D. Electrically operated. - answerInsulator.
Which of these materials could not be used as an insulator?
A. Glass
B. Lead
C. Wood
D. Plastic - answerLead
What is the direction of current flow in the external circuit? [Outside of the battery]
A. From north to south.
B. From negative to positive.
C. From positive to negative.
D. From south to north. - answerFrom negative to positive.
Which of the following metals is the best conductor (one with least resistance)?
A. Silver
B. Gold
C. Aluminum
D. Copper - answerSilver
An atom that has lost or gained electrons:
A. Is said to be ionized.
B. Has a positive charge.
C. Becomes electrical neutral.
, D. Is negatively charged. - answerIs said to be ionized.
Using metric prefixes, 0.55 amperes is equal to:
A. 0.000550 milliamperes.
B. 550 microamperes.
C. 0.55 milliamperes.
D. 550 milliamperes. - answer550 milliamperes.
Which of the following statements is NOT correct?
A. A positive charge occurs when there is an excess of electrons.
B. Electrons revolve around the nucleus of an atom.
C. Like charges repel.
D. Unlike charges attract. - answerA positive charge occurs when there is an excess of
electrons.
If you reduce the element silicon to its smallest possible part that still has all the
properties of silicon, it would be:
A. A neutron.
B. An electron.
C. A molecule.
D. An atom. - answerAn atom.
Electricity can be generated by:
A. Friction.
B. Combining sodium and chlorine.
C. Heating a glass rod.
D. Combining carbon and oxygen. - answerFriction.
The nucleus of an atom is made up of protons and neutrons. How are the protons
electrically charged?
A. Neutrally charged
B. Positively charged
C. Negatively charged
D. Uncharged - answerPositively charged
A good insulating material is one in which:
A. Electrons are easily moved from one atom to another.
B. Electrons are not easily moved from one atom to another.
C. There are fewer electrons than protons.
D. There are more electrons than protons. - answerElectrons are not easily moved from
one atom to another.
Which of the following is true about atoms?
A. They are all positively charged.
B. They all have electrons and protons.
C. They are all negatively charged.
