Electricity and Magnetism Quiz

What is the relative charge of a proton?

• Positive 1

• Negative 1

• Neutral

• Positive 2

What is the relative charge of an electron?

• Positive 1

• Negative 1

• Neutral

• Positive 2

What makes an atom usually neutral?

• It has more protons than electrons

• It has more electrons than protons

• It has the same number of protons and electrons

• It has no protons or electrons

What happens when you rub certain materials together?

• They become neutral

• Friction causes the movement of electrons from one material to the other

• They lose all their electrons

• They gain protons

What happens to the material that gains electrons?

• It becomes positive

• It becomes neutral

• It becomes negative

• It loses protons

What happens to the material that loses electrons?

• It becomes positive

• It becomes neutral

• It becomes negative

• It gains protons

What happens to charged objects when they are near each other?

• They always attract

• They always repel

• Opposite charges attract, like charges repel

• They become neutral

What does a voltmeter measure in a circuit?

• Current in amperes

• Potential difference in volts

• Resistance in ohms

• Power in watts

Which component is used to measure the current in a circuit?

• Voltmeter

• Ammeter

• Resistor

• Switch

What is the function of a resistor in an electrical circuit?

• To measure the current

• To control the resistance

• To restrict or limit the flow of electrical current

• To store electrical energy