Conduction

Question 1

Which explains why conduction is unlikely when ice is placed on a freezer shelf?

Revolt · Accepted Answer

The ice and shelf are the same temperature.

Question 2

Earl is using his hands to hold a metal pan 10 centimeters above a hot burner. How can this scenario be changed to demonstrate conduction between the pan and the burner?

Revolt · Accepted Answer

touch the pan to the burner

Question 3

Which best explains why metal cooking utensils often have plastic coating on their handles?

Revolt · Accepted Answer

Plastic reduces the transfer of thermal energy to hands holding the utensils.

Question 4

Which contains the particles that are vibrating fastest?

Revolt · Accepted Answer

boiling water

Question 5

What must be true about two objects for conduction to take place?

Revolt · Accepted Answer

The objects must be different temperatures and they must be in contact.

Question 6

Which describes how fast-moving particles assist in transferring thermal energy to a cup after hot tea is poured into it?

Revolt · Accepted Answer

They collide with slow-moving particles.

Question 7

How does a foam-filled winter coat help keep a person warm?

Revolt · Accepted Answer

It slows down the transfer of thermal energy from inside to outside the coat.

Question 8

Alana drew diagrams to show how particles in a spoon move before and after the spoon is placed in hot liquid. Which best explains how to correct Alana’s error?

Revolt · Accepted Answer

Switch the labels on the diagrams.

Question 9

How does an increase in thermal energy affect molecules?

Revolt · Accepted Answer

They begin to vibrate more.

Question 10

What occurs when someone places an ice pack on an injured ankle?

Revolt · Accepted Answer

Heat from the ankle is transferred to the ice pack.

Conduction Answers

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