PCS CFA GRADE 6 Electrical Energy (PS.6.2.4 & PS.6.2.5)

How do conductors and insulators differ in their ability to transmit electricity?

• Conductors prevent the flow of electricity, while insulators facilitate it.

• Conductors easily transmit electricity, whereas insulators resist it.

• Conductors are primarily used for protection, while insulators are used for electrical transmission.

• Conductors are exclusively metallic, while insulators are exclusively plastic.

What property makes metals like copper and aluminum suitable for use in electrical circuits?

• They are aesthetically pleasing.

• They conduct electricity efficiently.

• They are easy to shape.

• They are cost-effective.

What is a characteristic of an insulator?

• It allows electricity to pass through easily.

• It prevents the easy flow of electricity.

• It enhances the strength of electricity.

• It accelerates the movement of electricity.

Emily is designing a simple circuit with a battery and a fan. She connects the battery to the fan using a rubber band, then connects the fan back to the battery with another rubber band. She ensures all connections are secure, but the fan does not turn on. What is the most likely issue with the circuit?

• The battery is not charged.

• Rubber is not a conductor of electricity.

• Rubber conducts electricity too well.

• The fan is defective.

Tags

NGSS.MS-ETS1-1

What material would you choose to complete an open circuit to allow electricity to flow?

• A) A wooden stick

• B) A glass rod

• C) A copper wire

• D) A cotton string

What characteristic of electrical conductors enables them to efficiently conduct electricity?

• A. The particles are stationary and closely packed.

• B. The particles are mobile, allowing electrons to move freely through the conductor.

• C. The particles lack any electrical charge.

• D. The particles only become active at high temperatures.

Kelly made an electrical circuit using copper wire, a lightbulb, a battery, and a lemon. When she connected the circuit by sticking two wires into the lemon, the lightbulb lit up. What does this demonstrate about the lemon?

• Lemon skin is a good insulator of electricity.

• Electricity can be conducted by any material.

• Lemon juice is a good conductor of electricity.

• Copper wire is a good insulator of electricity.

What are some common methods for generating electric currents?

• A. Electric currents can only be generated by nuclear reactions.

• B. Electric currents can be generated using hydroelectric power, geothermal energy, and chemical reactions.

• C. Electric currents are only created by static electricity.

• D. Electric currents do not require any form of energy conversion.

When a battery is used to power a device, which type of energy is being transferred?

• mechanical energy

• electrical energy

• thermal energy

• sound energy

What is a key difference in the way components are connected in series and parallel circuits?

• In series circuits, components share the same current, while in parallel circuits, components share the same voltage.

• In series circuits, components share the same voltage, while in parallel circuits, components share the same current.

• Series circuits and parallel circuits both have components sharing the same current.

• Series circuits and parallel circuits both have components sharing the same voltage.