What's The Hottest Hot and Coldest Cold?

What is the Planck temperature?

• The temperature at which water boils

• The temperature at which physics as we know it breaks down

• The temperature at which atoms form

• The temperature of the sun's core

Why is absolute zero considered unattainable?

• Because it requires infinite energy to reach

• Because removing the last bit of heat is infinitely difficult

• Because it is too cold for any thermometer to measure

• Because it is colder than outer space

What happens to atoms at temperatures close to absolute zero?

• They move faster and become more energetic

• They behave as individual particles

• They behave together as a single wave

• They disappear completely

What is a Bose-Einstein condensate?

• A state of matter where atoms act as individual particles

• A state of matter where atoms behave as a single wave

• A type of superfluid

• A type of superconducting magnet

What is a superfluid?

• A fluid that is used in MRI machines

• A fluid that is extremely viscous

• A fluid that can only exist at high temperatures

• A fluid that can flow with no resistance

Why are superconducting magnets important in particle accelerators?

• They help in cooling the particles

• They provide the energy needed for particle collisions

• They recreate the super hot temperatures of the early universe

• They are used to measure the speed of particles

What do scientists study by recreating early universe conditions?

• The behavior of quarks and gluons

• The formation of stars

• The properties of black holes

• The expansion of the universe