Heat flow and temperature change

Heat transfers from ______ objects to cold objects. 

• Cold
• Hot
• Convection
• Radiation 

When you touch a cold window, how is energy being transferred?

• The window transfers heat to you 
• You transfer heat to the window
• The sun transfers heat to you
• None of the above

Ice melting in a cup is caused by....

• The ice is heated up by the drink
• Ice is cooling down the liquid

How will heat flow?

• From A to B

• From B to A

• There is no heat flow.

What would be the effect on the particles if more heat is supplied to the system?

• They would slow down
• They would stop moving
• They would speed up
• There would be no effect

Which direction will the heat flow while this person holds a hot cup of tea?

• from the cup to her hand
• from her hand to the cup
• no heat is transferred

Cold Pack on Person

• Heat is transferred from the cold pack to the person.

• Heat is transferred from the person to the cold pack

• The cold pack is getting warmer. The person is getting colder.

• The cold pack is getting colder. The person is getting warmer.

If a substance is hot, its particles will __________.

• move fast than the cooler object

• move slow than the cooler object

• move as the cooler object

• may move fast or slow than the cooler object

How heat is transferred?

• From high to low temperature

• From low to high temperature

• Left to right

• Up and down

Joe places two solid objects in contact with each other. Which property determines the direction of the flow of heat between the two objects?

• material of the objects

• volume of objects

• density of objects

• temperature of objects