PS Unit 4

What was this unit about

• specific heat capacity

• convection

• thermal energy

• All of them were in the unit

The butter on top of the pancake melted.

• Conduction

• Convection

• Radiation

Air conditioner cooling the hot room.

• Conduction

• Convection

• Radiation

Ironing a wrinkled shirt.

• Conduction

• Convection

• Radiation

Laying under the sun to get tan.

• Conduction

• Convection

• Radiation

An ice cube melts when you hold it in your hand.

• Conduction

• Convection

• Radiation

You feel hot after reading for a long time under a lamp.

• Conduction

• Convection

• Radiation

What is the definition of CONDUCTION?

• When heat is transferred from objects like rays of light or electromagnetically.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• When heat transfers from objects that are touching.
• When heat transfers through the heater or AC in your house.

dark colored surfaces _________ radiation

• reflect 
• absorb

What is the formula for specific heat capacity

• Q = mCΔT

• m = qCΔT

• Q = mWΔT

• T = mCΔQ