Fundamental Physics Concepts

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Questions and Answers

According to the first law of thermodynamics, energy can be created or destroyed.

False (B)

Which of the following thermodynamic processes occurs at constant temperature?

Isothermal (correct)
Isobaric
Adiabatic
Isochoric

Ohm's law states that voltage is equal to current multiplied by __________.

resistance

What does $E=mc^2$ describe?

Mass-energy equivalence Signup and view all the answers

Match the following types of heat transfer with their definitions:

Conduction = Heat transfer through direct contact Convection = Heat transfer through the movement of fluids Radiation = Heat transfer through electromagnetic waves Signup and view all the answers

Which of the following best describes physics?

The study of matter, energy, and their interactions. (D) Signup and view all the answers

Thermodynamics deals with heat, work, and energy, and the relationships between them.

True (A) Signup and view all the answers

According to Newton's second law, Force equals mass times ______.

acceleration Signup and view all the answers

Match the following terms with their descriptions:

Kinematics = Describes motion without considering its causes. Dynamics = Relates motion to its causes, namely forces and torques. Work = The energy transferred to or from an object by a force causing displacement. Energy = The capacity to do work. Signup and view all the answers

What does the zeroth law of thermodynamics state?

If two systems are each in thermal equilibrium with a third system, then they are in thermal equilibrium with each other. Signup and view all the answers

Flashcards

What is Physics?

The study of matter, energy, motion, and forces in the universe.

What is Kinematics?

Describes motion without considering its causes, focusing on displacement, velocity, and acceleration.

What is Dynamics?

Relates motion to its causes, which are forces and torques, using Newton's laws of motion.

Newton's First Law

An object at rest stays at rest, and an object in motion stays in motion with the same velocity unless acted upon by a force.