Heat Review

What is the energy called that moves between a hot cup of cocoa and a cold glass of lemonade?

• Heat

• Radiation

• Convection

Answer explanation

The energy that moves between the hot cup of cocoa and the cold glass of lemonade is called heat. Heat transfers from the hotter object to the cooler one until thermal equilibrium is reached.

Tags

NGSS.MS-PS1-4

What is a material called that allows heat to pass through it easily?

• conductor

• condection

• convection

• insulator

Answer explanation

The mysterious substance that allows heat to pass through it effortlessly is called a conductor. Conductors are materials that facilitate the transfer of heat, unlike insulators, which resist heat flow.

Tags

NGSS.MS-PS3-3

What do you call a material that stops or slows the transfer of heat?

• conduction

• convection

• conductor

• insulator

Answer explanation

The magical material that stops or slows heat transfer is called an insulator. Unlike conductors, which allow heat to pass through easily, insulators resist heat flow, making them ideal for keeping things warm or cool.

Tags

NGSS.MS-PS3-3

What scientific principle is experienced when feet touch a cold floor?

• conduction

• convection

• radiation

• insulation

Answer explanation

Sophia and Aiden are experiencing conduction, which is the transfer of heat through direct contact. When their feet touch the cold floor, heat moves from their warmer feet to the cooler surface, causing a sensation of cold.

Why does the spoon in ice cream get cold quickly?

• conduction

• convection

• conductor

• insulator

Answer explanation

This is an example of conduction, as the cold temperature of the ice cream is transferred to the spoon through direct contact, causing the spoon to get cold quickly.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Maya noticed her metal spoon getting hot while cooking macaroni. This is an example of ______________.

• conduction

• convection

• radiation

• heat

Answer explanation

Maya's metal spoon getting hot is an example of conduction, which is the transfer of heat through direct contact. The heat from the hot macaroni is conducted to the spoon, making it hot.

What type of thermal energy is experienced when eating warm, crispy chicken tenders?

• conduction

• convection

• radiation

• heat

Answer explanation

Lily is experiencing conduction, as the heat from the warm chicken tenders transfers directly to her mouth through direct contact, allowing her to feel the thermal energy.

What force occurs when a sled rubs against snow?

• energy

• fuel

• non-friction

• friction

Answer explanation

The force at play when the sled and the snow rub against each other is friction. This force opposes the motion of the sled, affecting how quickly it can slide down the hill.

What type of energy is known as the energy of heat?

• solar energy

• thermal energy

• insulators

• conductors

Answer explanation

The energy of heat is referred to as thermal energy. It is the energy that comes from the temperature of matter, making thermal energy the correct choice in this context.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the process called when heat transfers between touching mugs?

• Convection

• Conduction

• Heat

• Radiation

Answer explanation

The process of heat transfer between the touching mugs is called conduction. This occurs when heat moves through direct contact, allowing the warmer mug to transfer heat to the cooler one.