PS Thermal Energy

Luna is building a custom heat sink for her computer's processor. Which of the following materials should she use to ensure the best heat conduction?

• air

• plastic

• copper

• wood

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Lily, Liam, and William are discussing the materials used in a science project. They want to know which of the following is the poorest conductor of heat to use as an insulator.

• copper

• aluminum

• air

• steel

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Anika, Grace, and Isla are cooking dinner together. They are using a metal pan on the stove. How does the heat energy travel through the pan?

• convection

• radiation

• sublimation

• conduction

Daniel, Nora, and Abigail go to the beach on a hot day when the air temperature is 100°F and the ocean water is 80°F. When they dive into the ocean, which statement correctly describes the flow of heat?

• Heat flows from the ocean water to their bodies.

• Heat flows from the ocean water to the air.

• Heat flows from their bodies to the ocean water.

• Heat flows from their bodies to the air.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Sophia noticed that a metal rod becomes longer when heated. This happens because ...

• molecules speed up and push each other farther apart

• molecules slow down and move closer together

• molecules get larger when they are heated

• molecules multiply when they are heated

Tags

NGSS.MS-PS1-4

During a snowy winter day, Kai, Luna, and Avery were discussing their clothing. Kai mentioned that his winter coat is an example of what?

• a conductor

• an insulator

• a generator

• a refractor

Noah, Evelyn, and Luna were playing a game of 'The Floor is Lava' at home. Noah, who was barefoot, stepped from a carpet onto a tile floor and suddenly felt cold. This is because ...

• the tile is colder than the carpet

• the tile is a better conductor than the carpet

• the carpet is a better conductor than the tile

• the carpet radiates more heat than the tile

Tags

NGSS.MS-PS3-3

When Emma fills her bathtub with a mix of hot and cold water and the water stabilizes to a uniform temperature, the water has reached ...

• superposition

• angular momentum

• thermal equilibrium

• specific heat

Tags

NGSS.HS-PS3-4

Kai noticed that in a pot of boiling water, the water at the bottom is replaced by cooler water from the top, forming a cycle. Which statement is true about this convection current in water?

• Both warm and cold water rise.

• Both warm and cold water sink.

• Warm water sinks and cold water rises.

• Cold water sinks and warm water rises.

Tags

NGSS.MS-PS1-4

During a science fair, Michael demonstrated convection by showing heat transfer in a beaker of water using ...

• movement of waves through space

• movement in the water

• direct contact of molecules

• chemical reactions