OpenSciEd 6.2: Thermal Energy

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of the particles in a substance, which is related to its temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

How do particles behave in a solid?

Back

In a solid, particles are closely packed together and vibrate in place, maintaining a fixed shape and volume.

Front

How do particles behave in a liquid?

Back

In a liquid, particles are close together but can move past one another, allowing liquids to take the shape of their container while maintaining a fixed volume.

Front

How do particles behave in a gas?

Back

In a gas, particles are far apart and move freely, filling the entire volume of their container.

Front

What is evaporation?

Back

Evaporation is the process by which liquid water turns into water vapor, typically occurring at the surface of the liquid.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Front

What is the role of sunlight in thermal energy transfer?

Back

Sunlight transfers thermal energy by transmitting through materials, reflecting off surfaces, and being absorbed by objects.

Front

What is an open system in terms of thermal energy?

Back

An open system is one that can exchange both matter and energy with its surroundings, such as water in an open container.

Front

What is the independent variable in an experiment?

Back

The independent variable is the factor that is changed or manipulated in an experiment to observe its effect.

Front

Why is it important to change only one variable at a time in an experiment?

Back

Changing only one variable at a time allows researchers to determine which specific factor is responsible for any observed changes.

Tags

NGSS.MS-PS2-2