Absolute Zero

Is there a limit to how cold things can get?

• Yes

• No

Scientists realized over 350 years ago that absolute zero could exist, but have they succeeded in demonstrating it?

• Yes

• No

Tags

NGSS.HS-PS3-4

What happens to the molecules at absolute zero?

• They move at their fastest speed.

• They completely stop moving.

• They move slower than usual.

• They change state from solid to liquid.

Why is it said that reaching absolute zero is currently impossible?

• Because it requires too much energy.

• Because it can only occur naturally in space.

• Because no experiment has successfully demonstrated it.

• Because it is only a theoretical concept.

What is the temperature at which molecules theoretically stop moving, known as absolute zero?

• -270°C (-454°F)

• -94.7°C (-135.8°F)

• -18 degrees Celsius (0°F)

• -273.15°C (-459.67°F)

Why is absolute zero considered the coldest possible temperature?

• Because it is the temperature at which molecules move at their fastest speed

• Because it is the temperature at which water freezes

• Because it is the temperature at which molecular movement stops completely

• Because it is the temperature at which all heat is removed from an object

Tags

NGSS.HS-PS3-2

What is absolute zero?

• Coolest possible temperature

• Hottest possible temperature

• coldest possible temperature

• Warm temperature

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NGSS.HS-PS3-4

What is the significance of absolute zero in thermodynamics?

• It is the point where entropy reaches its maximum.

• It is the point where entropy reaches its minimum.

• It is the point where energy is at its maximum.

• It is the point where energy is at its minimum.

Which of the following statements is true about absolute zero?

• It can be achieved in a laboratory setting.

• It is a theoretical limit that cannot be reached.

• It is the temperature at which water freezes.

• It is the temperature at which metals melt.

Tags

NGSS.HS-PS3-2

What happens to the volume of an ideal gas as it approaches absolute zero?

• The volume increases.

• The volume decreases.

• The volume remains constant.

• The volume becomes infinite.