Intro. to Electricity

Use the following words to fill in the blanks: series circuit, cell, electrical conductor, resistance, electric power, electric discharge. Charges flow easily in an ____________________.

• electrical conductor
• Cell

• electric power

Use the following words to fill in the blanks: series circuit, cell, electrical conductor, resistance, electric power, electric discharge. Lightning is a form of ____________________.

• cell

• electric power

• series circut

• electric discharge

Use the following words to fill in the blanks: series circuit, cell, electrical conductor, resistance, electric power, electric discharge. A ____________________ converts chemical energy into electrical energy.

• parallel circuit

• cell

• resistance

Use the following words to fill in the blanks: series circuit, cell, electrical conductor, resistance, electric power, electric discharge. ____________________ is the opposition to the current by a material.

• electric discharge

• electrical conductor

• resistance

Use the following words to fill in the blanks: series circuit, cell, electrical conductor, resistance, electric power, electric discharge. Each load in a ____________________ has the same current.

• series circuit
• parallel circuit

• electrical current

Use the following words to fill in the blanks: series circuit, cell, electrical conductor, resistance, electric power, electric discharge. ____________________ is the rate at which electrical energy is converted into other forms of energy.

• electric discharge

• electric power

• electrical conductor

Two objects repel each other. What charges might the objects have?

• positive and positive

• positive and negative

• negative and negative

• both A and C

Which device converts chemical energy into electrical energy?

• lightning rod

• cell

• light bulb

• switch

Which of the following wires has the lowest resistance?

• a short, thick copper wire at 25° C

• a long, thick copper wire at 35° C

• a long, thin copper wire at 35° C

• a short, thick iron wire at 25° C

An object becomes charged when the atoms in the object gain or lose.

• protons

• neutrons

• electrons

• all of the above