11 Questions
What is the primary goal of physics?
to explain how things move in space and time and understand how the universe behaves
What are the four laws of symmetry and conservation mentioned in the text?
energy, momentum, charge, and parity
What is the branch of physics that helped develop the mathematical field of calculus?
mechanics
What is the oldest natural science mentioned in the text?
astronomy
What is the process of computing the amount of an unknown physical quantity using a standard known quantity called?
measurement
What is the branch of science that deals with the structure of matter and the interactions of the universe's fundamental constituents?
physics
What is a fundamental unit and give an example of it?
A fundamental unit is a unit used to measure fundamental quantities and can express itself without the assistance of any other units. An example of a fundamental unit is kilogram (kg) for mass.
What is a derived unit and give an example of it?
A derived unit is a unit of measurement of a derived quantity and cannot be expressed in the absence of fundamental units. An example of a derived unit is Newton (N) for force.
What is the relationship between fundamental units and derived units?
Derived units cannot be expressed in the absence of fundamental units, and they can be broken down into multiple fundamental units.
What is the purpose of supplementary units?
Supplementary units are combined with fundamental units to form derived units.
Give an example of a derived unit that is broken down into multiple units.
Newton (N) is equal to kg m / s2, which is broken down into multiple units: kilogram (kg), meter (m), and second (s).
Introduction to physics, the branch of science that deals with the structure of matter and its interactions. Learn about the fundamental goals and principles of physics. Get started with units and definitions in physics.
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