Heat Transfer

Leah is boiling water on a stove. When she touches the handle of the pot, she notices it is hot. What is most likely the reason the handle is hot?

• The heat from the stove is carried into the pot’s metal handle through radiation.
• The heat from the stove is carried into the pot’s metal handle through conduction.
• The heat from the stove is carried into the pot’s metal handle through convection.
• The heat from the stove is carried into the pot’s metal handle through transpiration.

Marlon places a hot spoon into a container of ice cream. How does this help him scoop out the ice cream? 

• The coolness from the ice cream is conducted to the spoon making it easier to scoop out.
• The coolness from the ice cream is radiated to the spoon making it easier to scoop out.
• The warmth of the spoon is conducted to the ice cream making it easier to scoop out.
• The warmth of the spoon is radiated to the ice cream making it easier to scoop out.

Which is an example of radiation?

• boiling a pot of noodles for dinner
• getting hot from lying in the sun  
• feeling warm while taking a hot shower
• burning yourself after touching a hot plate

Which is the best choice for the handle of a frying pan?

• Metal, because it conducts heat.
• Wood, because it conducts heat.
• Metal, because it does not conduct heat.  
• Wood, because it does not conduct heat.

Which of the materials would be the best conductor of heat?  

• plastic
• metal
• stone
• wood

What best explains why hot air rises above a dark parking lot?

• The dark parking lot heats up the air. The hot air rises by conduction.
• The dark parking lot heats up the air. The hot air rises by convection.
• The dark parking lot heats up the air. The hot air rises by insulation.
• The dark parking lot heats up the air. The hot air rises by radiation.

Which describes what can happen as a result of radiation?

• A piece of wood burns in a fire.
• A shirt is hot after having been ironed.
• A can of soup is heated in a pot on a stove.  
• A car’s inside temperature rises to over 100 degrees on a sunny day.

How does radiation compare to conduction?

• Radiation is heat transfer through liquid, and conduction is heat transfer through air.
• Radiation is heat transfer through materials touching, and conduction is heat transfer through air.
• Radiation is heat transfer through air, and conduction is heat transfer through liquid.
• Radiation is heat transfer through air, and conduction is heat transfer through materials touching.

Which best describes the process of convection?

• Convection is the primary way heat travels through rays.  
• Convection is the primary way heat travels through metals.  
• Convection is the primary way heat travels through appliances.
• Convection is the primary way heat travels through liquids and gasses.

Which best explains why metal is a good material to make frying pans?

• Metal is a good conductor of heat and transfers heat from the stove to the food.
• Metal is a good conductor of heat and does not transfer heat from the stove to the food.
• Metal is a poor conductor of heat and transfers heat from the stove to the food.
• Metal is a poor conductor of heat and does not transfer heat from the stove to the food.