Thermal Energy

What is temperature a measure of?

• the amount of water in a container

• the sun's energy as it warms a surface

• heat loss as an object cools

• kinetic energy of molecules

Tags

NGSS.MS-PS1-4

What is the SI unit for measuring temperature?

• Kelvin

• Celsius

• Fahrenheit

• the metric system

What quantity does this equation help you calculate?

• melting point of a substance

• change in thermal energy

• the potential energy of an object

• the room temperature of a reaction

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

In the equation, what does C represent?

• specific heat of the material

• the final temperature

• the boiling point of water

• average kinetic energy of the substance

According to the table, which substance will feel hot more quickly?

• wood

• iron

• water

• carbon

Tags

NGSS.HS-PS3-4

What is the change in thermal energy of a 20 kg wooden chair that warms from 20⁰ C to 55⁰ C. The specific heat of wood is 700 J/(kg^.C).

• 140,000 J

• 210,000 J

• 490,000 J

• 1,090,800 J

Tags

NGSS.HS-PS3-1

The air in a room has a mass of 72 kg and a specific heat of 1010 J/kg.C. What is change in thermal energy if the air warms from 15⁰C to 30⁰C?

• 1,090,800 J

• 210,000 J

• 490,000 J

• 1010 J

Tags

NGSS.HS-PS3-1

The moving particles that make up an object have ____ energy.

• decreasing

• increasing

• specific

• kinetic

Tags

NGSS.HS-PS3-2

The amount of heat needed to raise the temperature of 1kg of some material by 1⁰C is called the ____ of the material.

• kinetic energy

• potential energy

• specific heat

• thermal process

According to the laws of thermodynamics, thermal energy always moves _____.

• from the colder substance to the warmer substance.

• from the warmer substance to the colder substance.

• from the final to the initial temperature.

• from the kinetic to the potential energy.

Tags

NGSS.HS-PS3-4