1.1 · Physical quantities and measurement techniquesLesson 1 of 12Free preview
Physical quantities and units
A quantity is a number times a unit. Each prefix is a power of ten, so 17.5 cm is 0.175 m.
1.1 · Physical quantities and measurement techniquesLesson 1 of 12Free preview
A quantity is a number times a unit. Each prefix is a power of ten, so 17.5 cm is 0.175 m.