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Holt Physics ch 1
Ch1- the study of physics
Question | Answer |
---|---|
Mechanics | Motion and its causes |
Thermodynamics | Heat and temperature |
Waves & vibrations | Repetitive motion |
Optics | Light- lenses and mirrors |
ELectromagnatism | electromagnatism and light |
Relativity | particles moving at any speed including high speeds |
Quantum mechanics | behavior of sub microscopic particles-atoms & parts |
Physics is the study of... | the physical world |
Scientific method | step by step process to explain a physical process |
Length | Meters |
Mass | kilogram |
time | seconds |
milli- | 10 -3 |
centi- | 10 -2 |
kilo- | 10+3 |
micro- | 10 -6 |
nano- | 10-9 |
giga- | 10+9 |
mega- | 10+6 |
accuracy | the extent to which a reported measurement approaches the true value of the quantity measured |
precision | the degree of exactness of a measurement |
zeros between non-zero numbers are? | significant |
zeros in front of non-zero digits are? | Not significant |
zeros at the end and to the right of a decimal are? | significant |