Understanding Thermodynamics Through a Drinking Bird

What is the main goal of thermodynamics?

• To understand the laws of motion

• To create perpetual motion machines

• To describe the transfer of energy

• To study the behavior of birds

What happens when a thermodynamic system does work?

• It gains heat

• It loses heat

• It remains unchanged

• It doubles its energy

What is the first law of thermodynamics also known as?

• The law of perpetual motion

• The law of gravity

• The law of quantum mechanics

• The law of energy conservation

What does the internal energy of a system include?

• Only kinetic energy

• Only potential energy

• Both kinetic and potential energy of all the molecules

• Only thermal energy

What type of process occurs when volume is held constant?

• Isothermal

• Isobaric

• Adiabatic

• Isovolumetric

What is entropy often described as?

• The pressure of a system

• The inherent disorder of a system

• The inherent order of a system

• The temperature of a system

What does the second law of thermodynamics state about heat flow?

• Heat flows from hotter to colder objects

• Heat flows from colder to hotter objects

• Heat only flows in a vacuum

• Heat does not flow

Why can't the Drinking Bird be considered a perpetual motion machine?

• Because it is powered by batteries

• Because it only moves during the day

• Because it requires electricity to operate

• Because it stops moving when the water runs out

What happens to the entropy of the universe when you make ice in your freezer?

• It increases

• It fluctuates unpredictably

• It decreases

• It remains the same

Heat transfers from an area of ____temperature to an area of ___ temperature.

• high to low

• low to high

• high to high