Physics Flashcards
Process of assigning quantity to describe a property an object
Measurement
S.I.
Systematic internationale
S.I. unit
Metric system
S.I. agreed on standard system what year ?
1960
Unit of time
Second
Unit of length
Meter
Unit of mass
Kilogram
Unit of electric current
Ampere
Unit of temperature
Kelvin
Unit of substance
Mole
Unit of luminous intensity
Candela
Reliable known digits
Significant figures
Used to express very small and very large number
Significant figures
Quantity and property of an object
Measurement
Quantity and property of an object
Measurement
Difference between the true value and measured value
Error
Difference between the true value and measured value
Error
Net effect of error. doubt that exist in reported value
Uncertainty
How close the measured value to the true value
Accuracy
Scattered or the variability
Precision
Referred to pull or push exerted of the object
Force
What are the contact forces
Normal force, friction force, tension force
Non contact force
Magnetic force, electric force, gravitational force
Fundamental force
Strong nuclear force, electromagnetic force, weak nuclear force, gravitational force
Give estimate of true value also arrange mean
Arithmetic mean
Quantifies the spread of value
Standard deviation
Force exerted by the surface also perpendicular
Normal force
Force in the surface and parallel
Friction force
This is also known as pulling force
Tension force
Repulsion of attraction
Magnetic force
Force that created by Electric charge
Electric force
Attraction of object that has mass
Gravitational force
Atoms separating due to electric force
Strong nuclear force
Either attractive or repulsive
Electromagnetic force
Radioactive process
Weak nuclear force