Conductors and Insulators

Front

What is a conductor?

Back

A conductor is a material that allows heat or electricity to flow through it easily. Examples include metals like copper and aluminum.

Front

What is an insulator?

Back

An insulator is a material that resists the flow of heat or electricity. Examples include rubber, glass, and wool.

Front

Why does heat travel from a boiling pot to a metal spoon?

Back

Heat travels from the boiling pot to the metal spoon because metal is a good conductor of heat.

Front

What happens when a cold object is placed in a warm environment?

Back

The cold object absorbs heat from the warm environment until they reach thermal equilibrium.

Front

Which materials are typically the best thermal insulators?

Back

Materials like wool, fiberglass, and foam are typically the best thermal insulators.

Front

How do oven mitts protect your hands?

Back

Oven mitts protect your hands by using materials that are good thermal insulators, preventing heat from reaching your skin.

Front

What is thermal conductivity?

Back

Thermal conductivity is a measure of how well a material conducts heat. High thermal conductivity means the material is a good conductor.

Front

What is the role of air in insulation?

Back

Air is a poor conductor of heat, making it an effective insulator when trapped in materials like foam or double-glazed windows.

Front

Why are metals generally better conductors than non-metals?

Back

Metals have free electrons that can move easily, allowing them to conduct heat and electricity better than non-metals.

Front

What is an example of a good electrical insulator?

Back

Rubber is an example of a good electrical insulator, commonly used to cover electrical wires.