,1. Multiple Choice: Which of the following is a
fundamental concept in thermodynamics?
a) The law of conservation of momentum
b) The law of definite proportions
c) The first law of thermodynamics
d) The principle of superposition
Correct Answer: c) The first law of
thermodynamics
Rationale: The first law of thermodynamics, also
known as the law of energy conservation, states
that energy cannot be created or destroyed in an
isolated system.
,below its boiling point through the increase of
energy.
3. True/False: In a chemical reaction, the mass of
the reactants is always equal to the mass of the
products.
Correct Answer: True
Rationale: This statement is true according to the
law of conservation of mass, which states that mass
is neither created nor destroyed in a chemical
reaction.
, thermal energy with heat, elastic energy with
deformation, and gravitational energy with the
position in a gravitational field.
5. Multiple Choice: What is the SI unit of force?
a) Newton
b) Joule
c) Watt
d) Pascal
Correct Answer: a) Newton
Rationale: The SI unit of force is the Newton,
which is defined as the force required to accelerate
a one-kilogram mass by one meter per second
squared.
6. Fill-in-the-Blank: The phenomenon of a sound
wave bouncing off a surface is known as __________.
Correct Answer: Reflection
Rationale: Reflection is the term used to describe
the bouncing back of a wave, such as a sound wave,
when it hits a surface that it does not pass through.
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