Thermal Energy

What is the original source of the most of the energy that people use?

• By radiation from the sun.

• By convection from the sun.

• By radiation from the Earth's core.

• Conduction from Earth's core.

Which best explains how this roasting marshmallows happens?

• Heat from the fire is conducted into the marshmallow.

• Heat from the fire is radiated into the marshmallow.

• The coolness of the marshmallow is conducted into the fire.

• The coolness of the marshmallow is radiated into the fire.

Tags

NGSS.MS-PS3-3

Which best describes heat transfer by radiation?

• A slice of bacon frying in a pan.

• A pot on a stove boiling water.

• Cooking a hotdog in a microwave.

• A hot air balloon.

Tags

NGSS.MS-PS4-2

When choosing materials to build a fireplace, why is brick a better choice than metal?

• Brick is a conductor.

• Brick is heat resistant.

• Metal is a conductor.

• Meat is heat resistant.

What enables fireman to enter buildings that are on fire and return from them safely?

• Convection cells keep fire away.

• The heat makes the building expand so there is no more room.

• Fireman wear heat resistant suits.

• They are really fast.

Which of the following best describes CONVECTION?

• When heat is transferred through waves.

• When heat is transferred through objects that are touching.

• The movement of gas or liquid in which warmer parts move up and the colder parts moves down.

Tags

NGSS.MS-ESS2-6

What kind of heat transfer is occurring when the sun warms the sand?

• Conduction

• Convection

• Radiation

• All of them

Which of the following is an example of convection?

• Hair dryer is drying up your hair

• When a car engine turns hot after being turned on.

• A spoon placed in the cup filled with cold coffee.

• Boiling spaghetti noodles in water.

Warm air rises and the cool air sinks demonstrates this type of heat transfer.

• Conduction

• Convection

• Radiation

Tags

NGSS.MS-ESS2-6

Heat transfers from an area of ________ temperature to an area of _______ temperature.

• high to low

• low to high

• high to high

• low to low

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4