Electricity and Circuits Quiz

What distinguishes static electricity from current electricity?

• A) Static electricity is characterized by a continuous flow of charges, whereas current electricity is not.

• B) Static electricity is the accumulation of charges on a surface, while current electricity is the movement of charges through a conductor.

• C) Both static and current electricity are forms of energy that involve moving charges.

• D) Static electricity powers electronic devices, unlike current electricity.

What happens to the current in a circuit if the voltage is increased while the resistance remains constant?

• The current decreases.

• The current remains the same.

• The current increases.

• The current becomes zero.

In a series circuit with a 9V battery and resistors of 3Ω and 6Ω, what is the total resistance?

• 3Ω

• 6Ω

• 9Ω

• 12Ω

What is the equivalent resistance of a series circuit with resistors of 3Ω, 5Ω, and 7Ω connected to a 15V battery?

• 3Ω

• 5Ω

• 15Ω

How does resistance affect the speed of current in a circuit?

• Resistance increases the speed of current.

• Resistance has no effect on the speed of current.

• Resistance decreases the speed of current.

• Resistance doubles the speed of current.

Which of the following is an example of an insulator?

• Copper

• Aluminum

• Rubber

• Iron

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What is the unit of measurement for current?

• Volts

• Ohms

• Amps

• Watts

What is the relationship between voltage and current in a circuit?

• They are inversely proportional.

• They are directly proportional.

• They are unrelated.

• They are equal.

In Ohm's Law, what does the formula V = I × R represent?

• A) Voltage is equal to current divided by resistance.

• B) Voltage is equal to current multiplied by resistance.

If a circuit has a total resistance of 15Ω and a current of 2A, what is the voltage?

• 7.5V

• 15V

• 30V

• 45V