Quiz 4 (Section 3.1) Flashcards
(10 cards)
What is the formula for circumference of a circle?
What is the distance traveled by an object per unit of time?
speed
What branch of physics addresses the effects of forces on matter?
mechanics
What type of mathematical quantity, often represented by arrows, has both magnitude and direction?
vector (quantity)
What is the formula for average velocity?
velocity equals displacement divided by time
How do you find the magnitude of total displacement when the directions are the same or opposite.
Use signed numbers to represent direction, ie. positive for north and negative for south. Add the signed numbers
What is the study of motion and forces?
dynamics
What is the formula for the magnitude of total displacement when the directions are perpendicular
What is the sum of two or more vectors called?
resultant
What term refers to the branches of physics discovered before 1900?
classical physics
