SCI 5 Q3

What do we call a material that allows electricity to pass through it?. conduction. conductor. insulator. metal.

Which is an example of conductor?. book. cloth. copper wire. paper plate.

What do we call a material that does not allow the electricity and heat to pass through it?. conductor. insulator. iron. wire.

Which is an example of insulator?. book. copper. metal fork. silver.

What do we call the transfer of heat in solid?. conduction. conductor. insulator. radiation.

Why are cooking utensils made up of metal but the handles are made of plastic?. Metal is hard while plastic is soft. Metal is expensive but plastic is cheaper. Metal is not brittle while plastic is brittle. Metal is a good conductor of heat while plastic is a poor conductor of heat.

Which of the following consists of objects that are good conductors of heat?. steel, paper towel, paper. gold, pencil, tape. iron wire, thumb tacks, steel ruler. aluminum cup, wood, cloth.

What is the difference between a conductor and an insulator?. An insulator is durable, while a conductor is not. A conductor is durable, while an insulator is not. An insulator allows heat to flow through it easily while a conductor does not. A conductor allows heat to flow through it easily while an insulator does not.

Which of the following is a good conductor?. cloth. metal. plastic. wood.

All of the following statements are correct, EXCEPT one. Which one is it?. Metals are non-ductile while non-metals are ductile. Metals are opaque while non-metals are transparent. Metals are lustrous while non-metals are not lustrous. Metals are good conductors of heat and electricity while non-metals are poor conductors of heat and electricity.

Copper and aluminum are metals so they are good conductors of heat and electricity. Stainless steel is an iron-based metal. Iron, gold, silver, brass, steel, copper, and nickel are also good conductors of heat and electricity. True. False.

Metals do not have free electrons that is why they are not good when it comes to conduction of heat and electricity. True. False.

Non-Metals do not have free electrons that is why they are not as good as metal when it comes to conduction of heat and electricity. True. False.

Good conductors are solids that have atoms that are very compact. The more compact the atoms the better conductors it will be. True. False.

All solids can facilitate heat conduction. True. False.

Since metals are good conductors of electricity, electric wires are made of metals like copper. True. False.

Good conductors are solid materials that have atoms that are very dense. True. False.

Your mother wants to cook egg faster. Which of the following materials will she use?. Aluminum pot. Clay pot. Plastic pot. Rubber pot.

A plastic is a great conductor of electricity. True. False.

Glass and air allow electricity to pass through them. True. False.

Wood, plastic, glass and rubber are conductors. They allow electricity to flow through them. True. False.

Check the properties of good conductors. gain heat quickly. lose heat quickly. increase in temperature quickly. brittle. can be hammered. decrease in temperature quickly. conduct heat from a hot to a cold object quickly. conduct heat from a hot to a cold object slowly. shiny.

Check the properties of poor conductors. gain heat slowly. increase in temperature slowly. increase in temperature quickly. brittle. lose heat slowly. decrease in temperature slowly. conduct heat from a hot to a cold object quickly. conduct heat from a hot to a cold object slowly. shiny.

a form of energy that keeps us warm.

heat transfer through direct contact.

the flow of electrical power or charge.

materials that allow electricity and heat to transfer.

materials that do not transfer electricity and heat.

When metals are heated, atoms and free electrons vibrates that causes the transfer of heat and electricity faster. True. False.

Metals are good conductors of heat and electricity. It contains free electrons where it moves through the metal easily. Electrons gain kinetic energy when it collides with hot atoms and pass on energy when they collide with cold atoms. True. False.