TIMSS - PHYSICS 1 - Physical States and Changes in Matter

The flow of energy from an object at a higher temperature to an object at a lower temperature.

• heat
• temperature
• radiation
• conduction

The energy an object has due to the motion of its particles; the total amount of kinetic energy of particles in an object.

• heat
• thermal energy
• conduction
• convection

A measure of the average amount of kinetic energy of the particles in the object.

• energy
• expansion
• temperature
• heat

The process by which energy is transferred from a warmer object to a cooler object by means of physical contact

• Thermal Energy
• Convection
• Radiation
• Conduction

The process by which energy is transferred in gases and liquids occurring when a warmer, less dense area of gas or liquid is pushed up by a cooler, more dense area of gas or liquid.

• Thermal Energy
• Radiation
• Convection
• Expansion

Energy that travels across distances in the form of electromagnetic waves. 

• Convection
• Radiation
• Conduction
• Induction

What type of heat transfer takes place in solids?

• Conduction
• Convection
• Radiation

Gases are described as having a 

• definite shape and indefinite volume
• indefinite shape and indefinite volume
• definite shape and definite volume
• indefinite shape and definite volume

Solids are described as having a 

• definite shape and indefinite volume
• indefinite shape and indefinite volume
• definite shape and definite volume
• indefinite shape and definite volume

What happens to the average kinetic energy of matter when it is heated?

• It increases
• It decreases 
• It doesn't change
• It cannot be determined