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Well, some physical devices don't work at all.
What else can I help you with?
define physical quantity in you own words?
all measurable quantities are called physical quantities such as lenght, mass, time and temperature
What thing is not physical quantity?
Love is an example of something that is not a physical quantity, as it is a concept that relates to emotions and relationships rather than being measurable in terms of mass, length, time, etc. Other examples include thoughts, beliefs, and feelings.
Name a physical quantity that varies?
By "physical" quantity, I will "assume" you mean directly measurable. 1. Kinetic Energy 2. Temperature 3. Velocity 4. Heat 'content' 5. Radioactivity 6. Luminescence
What is the unit of a physical quantity which is represented by area under a velocity time graph?
the physical quantity is distance and unit is meters
Is acceleration a physical quantity?
Yes, acceleration is a physical quantity that measures the rate of change of an object's velocity with respect to time. It is a vector quantity that includes both magnitude and direction.
Does a quantity have different dimensions in different systems of units?
No. The dimensions are: Mass, Length, Time, and Charge. They transcend the systems of units. For example, speed will always have the dimensions of (Length)/(Time), regardless of the system of units.
What is dimention in physics?
In physics, a dimension refers to a measurable extent of a physical quantity, such as length, mass, time, or temperature. Dimensions provide the framework for describing and understanding the physical world, and different physical quantities are often described using combinations of these fundamental dimensions.
What is the physical quantity that is measured in light year?
A light year is a unit of distance, not a physical quantity. It represents the distance that light travels in one year in a vacuum.
What is a foundamental quantity?
A fundamental quantity is a physical quantity that is independent and not defined in terms of other physical quantities. These fundamental quantities form the basis for the measurement of other physical quantities. Examples of fundamental quantities include mass, length, time, and electric charge.
What do you mean by the dimensional formula and dimension of physical quantity?
The dimensional formula of a physical quantity represents how it is composed of fundamental dimensions like length, mass, and time. For example, the dimensional formula of velocity is [LT^-1] where L represents length and T represents time. The dimension of a physical quantity refers to the type of fundamental dimension it represents, like length, mass, or time.
What does it mean to say that a physical quantity is quantized or conserved?
To say that a physical quantity is quantized means that it can only take on discrete values or multiples of a fundamental unit. Conservation of a physical quantity means that the total amount of that quantity remains constant over time in a closed system, even if it may change forms.
What is meant by unit of a physical quantity?
A unit of a physical quantity is a standardized quantity used to express measurements. These units help provide a clear and consistent way to quantify different physical properties such as length, mass, time, and temperature. Units allow for effective communication and comparison of measurements across different contexts.
