Intro to Physics Flashcards
(14 cards)
What is physics?
the study of how things work in the universe
(oldest science)
What is motion?
a change in position for an object
(reference point is needed)
What are the four factors of motion?
- Referance point
- Distance
- Time
- Direction
What is speed?
how fast an object is moving and teh distance travled per unit of tíme
What are some units for speed?
mi/ hr ft/sec cm/yr, any dystance over time
What is consatant speed?
speed that does not ver, second hand, spin of earth, curise control
What is the average speed?
distance travled/ time it takes to travle the distanc s=dNOT constanct 58.6 mi/hr
What is velocity?
speed and direction
33 mi soutg
What is acceleration?
how much speed changes over time
What is positive acceleration?
when an object speeds up, increasing evry second
What is negitive acceleration?
when an object slows down, descresing its speeds every seconed
What is directional acceleration?
when an object changes direction regardless it its increasing ir decreasing its speed
What is the equation for acceleration?
final speed -intital speed/ time
What are the units for acceleration?
ft/sec2 m/sec2
