Energy Quiz

Which graph represents a Endo reaction

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Which type of reaction is heating the tea ?

What type of heat transfer is happening in the tea?

• Exo

  Conduction

• Exo

  Convection

• Endo

  Conduction

• Endo

  Convection

What type of reaction occurs in a hand warmer?

• exothermic

• endothermic

_____ reactions usually feel hot!

• endothermic

• exothermic

Which of the following is true about endothermic reactions?

• Heat is released

• The reaction feels warm/hot

• Heat is absorbed

Which is not an example of an exothermic reaction?

• melting ice cube

• candle flame

• rusting iron

• burning sugar

Based on the following Energy Diagram, which statement best describes this image?

• The reaction is endothermic because the heat energy of the reactants is less the energy in the products. This means heat is absorbed in the reaction.

• The reaction is endothermic because the heat energy of the reactants is greater the energy in the products. This means heat is released in the reaction.

• The reaction is exothermic because the heat energy of the reactants is less the energy in the products. This means heat is absorbed in the reaction.

• The reaction is exothermic because the heat energy of the reactants is greater the energy in the products. This means heat is released in the reaction.

Near the ceiling of a room the air is warmer. The warm air rises because of ________.

• conduction

• convection

• radiation

Walking on the warm sand sand with your bare feet demonstrates this type of heat transfer. 

• conduction
• convection
• radiation

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 colder. The person is getting warmer.