Chapter 7 Review - Thermal Energy

The sum of kinetic energy and potential energy of the particles in a material is ____________

Which increases the kinetic energy of the particles that make up a bowl of soup?

• dividing the soup in halfcold

• putting the soup in a refrigerator

• heating the soup for 1 min on a stove

• decreasing the distance between the particles that make up the soup

Maple sap boils at 104ºC. At what Fahrenheit temperature does the sap boil?

• 219.2 F

• 1.8 F

• 155.2 F

• 100 F

The transfer of thermal energy by electromagnetic waves is _____________

Why do hot-air balloons rise?

• thermal conduction

• thermal convection

• thermal expansion

• thermal radiation

A ___________ is a device that converts electric energy into thermal energy

Which sequence describes the energy transformation in an automobile engine?

• chemical → thermal → mechanical

• thermal → kinetic → potential

• thermal → mechanical → potential

• thermal →chemical → mechanical

When you increase the __________ of a cup of hot cocoa, you increase the average kinetic energy of the particles that make up the hot cocoa.

The increase in volume of a material when heated is ________ _________

a(n) ______________ is used to control the temperature in a room.