Heat energy and Temperature

A group of campers is sitting around a campfire. How is thermal energy being produced? 

• friction
• rubbing
• burning
• mixing chemicals together

In which investigation would a student MOST LIKELY use a thermometer? 

• to learn how long it takes to burn a log
• to calculate how much insulation to buy
• to find out how fast cocoa cools in a plastic cup
• to measure the thickness of a good conductor

Which material is the WORST insulator?

• cork
• air
• plastic foam
• aluminum foil

Chris measured the air temperature on four days. On which day was the air temperature closest to the freezing point of water? 

• Day 1: 5 degrees Celsius
• Day 2: 15 degrees Celsius
• Day 3: 30 degrees Celsius
• Day 4: -10 degrees Celsius

Victoria mixes baking soda and vinegar in a dish. The baking soda bubbles and the dish gets warm . What is the source of the thermal energy?

• friction
• rubbing
• burning
• mixing chemicals

Why can you NOT compare the readings of Fahrenheit and a Celsius thermometer? 

• The thermometers use different scales
• The thermometers are not the same height.
• The thermometers are not the same thickness.
• The thermometers were made by different companies. 

You slide across the carpet in socks and notice that your feet feel warmer. Which is the BEST explanation?

• insulation
• burning
• conduction
• friction

Dishone's soup is too hot in his thermos. Which is true of Dishone's thermos?

• It has good insulation
• It has poor insulation.
• It is a good conductor of heat.
• It is a good conductor of steam.

People wear snowsuits to ________.

• help thermal energy leave their bodies.
• keep heat outside of their bodies.
• block the flow of heat from the air to their bodies. 
• decrease how much heat leaves their bodies. 

Sabrina used a thermometer to find the temperature of a cup of water. Which will INCREASE the temperature of the water? 

• drop in an ice cube.
• add more cold water.
• add some boiling water.
• take the thermometer out of the water.