State Changes and Energy Transfer

Describe the molecules in a gas.

• Tightly compact, vibrating
• Close together, slightly moving
• Far apart, moving fast

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

As thermal energy increases, what happens to the movement of the molecules?

• Increases
• Decreases
• Stays the same 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If the movement of the atoms increases, you can assume the temperature was _________.

• Increased

• Decreased

• Not Changes

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The transfer of thermal energy from one object to another is known as ______.

• Kinetic Energy
• Heat
• Potential Energy

Tags

NGSS.MS-PS1-4

Arnold placed a hot pan on the counter. The pan is transferring heat to the counter by the process of _______.

• Radiation
• Convection
• Conduction

The sun transfers heat to the Earth by _________. 

• Radiation
• Convection
• Conduction

Heat can also be transferred by _____. An example of this is when the air moves from things that are hotter to colder.

• Radiation
• Conduction
• Convection

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

These molecules represent which state of matter?

• Solid
• Liquid
• Gas

Tags

NGSS.MS-PS1-4

What happens during conduction on the molecular level?

• Fast moving molecules get larger
• Slow moving molecules get smaller
• Fast molecules transfer energy to slow molecules
• Slow molecules transfer energy to fast molecules

Identify the three most common states of matter found on Earth.

• Solid, liquid, and gas
• Plasma, solid, and liquid
• Liquid, gas, and plasma
• Solid, liquid, and plasma