Heat Test 2023

Thermal energy always flows from

• a warmer substance to a cooler substance.
• a cooler substance to a warmer substance.
• one substance to another substance having the same temperature.
• a liquid to a solid.

Ice melts in a glass of soda as a result of thermal energy flowing from the

• ice to soda.
• soda to the ice.
• solid to the liquid.
• inside of the ice to the outside of the ice.

A material that reduces the flow of heat by conduction, convection, and radiation is...

• a conductor
• condensation
• an insulator
• a solar collector

The type of heat transfer that does NOT require matter is...

• combustion
• radiation
• conduction
• convection

The inside surface of a vacuum bottle is coated with a shiny layer to prevent heat loss by...

• combustion
• radiation
• conduction
• convection

Heat is transferred from one particle of matter to another through direct contact in a process called...

• conduction
• convection
• radiation
• insulation

Which of these would be the BEST conductor?

• wood
• paper
• silver
• air

Which of the following claims can be supported by the image?

• Different metals conduct heat at different rates (speeds)
• Brass conducts heat better than any other metal.
• Metals are good insulators.

Based on the information in the diagram, which metal is likely to have the greatest DENSITY?

• Aluminum
• Nickel
• Iron
• Copper

The end of a metal bar is placed in a flame for five minutes. The temper­ature is measured by thermometers at four points on the bar, as shown in the diagram below. The lowest temperature will most likely be re­corded by the thermometer at point:

• a
• b
• c
• d