Conductors Semiconductors and Insulators

What are the charged particles in a conductor free to do?

• Reflect light

• Stay stationary within the atomic structure

• Absorb energy from the circuit

• Move around and flow as an electric current

What is the term used for materials where the charge carriers are locked into the atomic structure and not free to move?

• Thermistor

• Semiconductor

• Insulator

• Conductor

Tags

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What happens to a thermistor when heat is applied to it?

• It becomes an insulator

• It becomes a better conductor

• It absorbs heat

• It emits light

What happens to an LDR when light photons cause the electrons to escape?

• It becomes a better conductor

• It becomes an insulator

• It emits heat

• It absorbs light

Tags

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What is the term used for a material that can be a regular conductor or not depending on the energy given to it?

• Thermistor

• Semiconductor

• Insulator

• Conductor

What effect does having more light to a semiconductor in an LDR, have on the number of charge carriers?

• Does not affect the number of charge carriers

• Causes the charge carriers to move faster

• Decreases the number of charge carriers

• Increases the number of charge carriers

What can liberate charge carriers in a thermistor?

• Temperature

• Light

• Magnetism

• Electricity

What is the term used for a material with a number of charge carriers somewhere between a conductor and an insulator?

• Thermistor

• Semiconductor

• Insulator

• Conductor