CONDUCTION, CONVECTION AND RADIATION

Heating a room with a fireplace

• Conduction

• Convection

• Radiation

Tags

NGSS.MS-PS3-3

Which of the following is not a method for heat transfer

• Radiation

• Insulation

• Conduction

• Convection

In which of the following state are the particles closest together?

• Fluid

• Gas

• Liquid

• Solid

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.

Tags

NGSS.MS-PS1-4

The way the heat is moving from the hot coffee is called...

• convection
• radiation
• insulation
• conduction

Heat transfers from an area of ____temperature to an area of ___ temperature.

• high to low
• low to high
• high to high
• It can travel high to low and low to high. 

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A wire, 20 m long, is heated from a temperature of 5⁰C to 55⁰C. If the change in length is 0.020 m, calculate the linear expansivity of the wire.

• 1.0 x 10^-3 K^-1

• 2.0 x 10^-4 K^-1

• 2.0 x 10^-5 K^-1

• 2.0 x 10^-6 K^-1

A brass rod is 2m long at a certain temperature. Calculate the linear expansion of the rod for a temperature change of 100 K. (Linear expansivity of brass = 1.8 x 10^-5 K^-1)

• 0.3600 m

• 0.1800 m

• 0.0360 m

• 0.0036 m

A chair is placed several feet from a fireplace. The fireplace has a glass screen. The side of the chair facing the fireplace gets warm because of

• conduction

• convection

• radiation

In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

• Hotter to colder

• Colder to hotter

• Hotter to hotter

• Colder to colder

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4