Thermal Energy Mr. Pecora

When temperature increases, average____ increases

• Kinetic Energy
• Potential Energy
• Gravitational Potential Energy

In years past, people would put a hot water bottle in bed with them to help warm their feet.  The transfer of the warmth from the water bottle to their feet is called ____.

• Heat
• Temperature
• Thermal Energy

When water is heated on a stove, which kind of energy is transferred?

• Thermal Energy
• Gravitational Energy
• Kinetic Energy

Every material has its own specific heat.  It is easy to change the temperature of a material with ____.

• Low specific heat
• High specific heat
• Conduction

The ocean is cold even in summer because water has ____.

• High specific heat
• Low specific heat
• Conduction

When a substance is heated, the particles gain energy an spread out creating more volume.  What happens to the mass of the substance when it is heated.

• Mass remains the same
• Mass increases
• Mass decreases

Bars of different metals are all heated to 100⁰ C to determine how their volume and length would be affected.  Which statement describes the most likely outcome of this experiment.

• All of the volumes change and so do their lengths
• All of the volumes change, but each substance has the same length
• Only some of the volumes change with the length being the same

A hot iron is turned off and cools down to room temperature.  The iron cools because ____.

• Heat energy is transferred from the warm iron to the cooler room
• The iron does not hold heat very well
• The room transfers cold energy to the iron

To check if a stovetop is hot, you place your hand near the top of the stove and feel that it is warm without touching it.  You can feel the heat from the stovetop because of ____.

• Radiation
• Conduction
• Convection

You reach for a bottle of water out of the refrigerator.  Your hand gets cold because of which of hte following?

• Conduction
• Radiation
• Conduction Current