precision and accuracy

it is comparing an unknown value with a standard :

• accuracy

• uncertainty

• measurement

• mean

which one is scientifically accepted

• error

• uncertainty

it describes how close the experimental measurements are to each other

• accuracy

• precision

• error

• data

in a golf game, this describes an accurate and imprecise trials 

• true

• false

which of these sets of measurements is the most accurate and precise?(if the real value is π=3.14)

• sara

• ahmad

• alaa

Tags

NGSS.MS-ETS1-3

which of the following expressions about gravitational acceleration is the most precise?

• a

• b

• c

• d

Tags

NGSS.HS-PS2-4

if the measuring device's precision is low , the uncertainty margin will :

• increase

• decrease