SJI 7- SCIENCE Heat Transfer

What is heat transfer?

• The movement of particles without energy

• The process of energy moving from a warmer object to a cooler object

• The creation of heat through friction

• The storage of energy in a system

Which of the following is a method of heat transfer?

• Conduction

• Radiation

• Convection

• All of the above

What is conduction?

• Heat transfer through electromagnetic waves

• Heat transfer through direct contact

• Heat transfer through the movement of fluids

• Heat transfer that occurs in a vacuum

What makes metals good conductors?

• Their light color

• The free electrons that transfer thermal energy

• Their low melting points

• Their high density

Which material is an insulator?

• Aluminum

• Copper

• Plastic

• Steel

Which is an example of conduction?

• Feeling heat from the Sun

• Heat traveling through a metal spoon in hot soup

• Warm air rising to the ceiling of a room

• Boiling water in a pot

What is convection?

• Heat transfer through electromagnetic waves

• Heat transfer through the movement of liquids or gases

• Heat transfer through direct contact

• Heat transfer through solids only

Which situation demonstrates convection?

• A campfire warming your hands

• A metal spoon becoming hot in soup

• Hot air rising and cooler air sinking in a room

• The warmth of sunlight on your skin

What is radiation?

• Heat transfer through direct particle vibration

• Heat transfer through electromagnetic waves without a medium

• Heat transfer through moving fluids

• Heat transfer in a vacuum through conduction

Which is an example of radiation?

• Boiling water in a pot

• The Sun warming the Earth

• A hot metal rod transferring heat to your hand

• Warm air rising from a heater