Understanding Absolute Zero

What is the temperature inside a normal kitchen freezer?

(a)  

• -18°C
• -94°C

• -270°C

• -273.15°C

Tags

NGSS.MS-PS3-4

Where have the coldest temperatures on Earth been recorded?

• Antarctica

• Arctic

• Siberia

• Greenland

What is the coldest outdoor temperature ever recorded on Earth?

• -18°C

• -94°C

• -270°C

• -273.15°C

In space, scientists have measured temperatures as low as ____. A) -18°C B) -94°C C) -270°C D) -273.15°C.

• -18°C

• -94°C

• -270°C

• -273.15°C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is absolute zero?

• The temperature at which water freezes

• The temperature at which there is absolutely zero molecular movement

• The temperature inside a freezer

• The temperature at which ice melts.

Tags

NGSS.MS-PS1-4

What happens to molecules at absolute zero?

• They move faster

• They stop moving entirely

• They change color

• They expand.

Tags

NGSS.MS-PS1-4

What is the temperature of absolute zero?

• -18°C

• -94°C

• -270°C

• -273.15°C

Tags

NGSS.MS-PS3-4

How is temperature related to the movement of molecules?

• Faster molecules mean lower temperature

• Faster molecules mean higher temperature

• Slower molecules mean higher temperature

• Molecule movement does not affect temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Is there a limit to how cold things can get?

• Yes

• No

Tags

NGSS.MS-PS1-4

What is the average speed of molecules in a sample at absolute zero?

• Fast

• Slow

• Zero

• Moderate

Tags

NGSS.MS-PS3-4