1) What is thermodynamics? a) The study of light and sound b) The study of energy and heat transformations c) The study of motion d) The study of gravitational forces 2) What is the difference between heat and temperature? a) They mean the same thing b) Heat measures particle motion and temperature is energy in transit c) Heat is energy in transit and temperature measures particle motion d) Heat is a substance that warms objects 3) What is the SI unit of heat? a) Calorie (cal) b) Joule (J) c) Watt (W) d) Kelvin (K) 4) What happens during thermal equilibrium? a) The colder body loses energy b) The hotter body gains energy c) The hotter body loses energy and the colder body gains energy until both have the same temperature d) No energy is exchanged 5) What instrument is used to measure temperature? a) Barometer b) Thermometer c) Anemometer d) Manometer 6) What is the First Law of Thermodynamics? a) Energy can be created and destroyed b) Energy is conserved: ΔU = Q - W c) Heat always flows from cold to hot d) Every system tends to equilibrium 7) In an isothermal process, what remains constant? a) Pressure b) Volume c) Temperature d) Internal energy 8) In an adiabatic expansion, what happens to the temperature of the gas? a) It increases b) It decreases c) It stays constant d) It depends on the pressure 9) What is the Second Law of Thermodynamics also called? a) Law of conservation of energy b) Law of entropy c) Law of inertia d) Law of expansion 10) In a refrigerator, heat: a) Flows from cold to hot using energy b) Flows naturally from cold to hot c) Is created inside the freezer d) Is not transferred at all

Physics – Thermodynamics

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