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Flashcards in Semester 1 Final Deck (32)
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1

speed

how fast the object is moving

2

velocity

speed in a given direction

3

position = _______________

(velocity)(time) + starting position

4

equation to find velocity

change in position over change in time

5

motion maps

represents position, velocity, acceleration, of an object at various clock readings

6

what do the dots represent on a motion map

the objects position each second and velocity is represented the arrow

7

acceleration

a change in velocity in a given amount of time

8

equation to find velocity

acceleration = velocity final - velocity initial over time

9

acceleration is a ______

vector that can be positive or negative

10

slope of a velocity time graph

acceleration

11

position time squared graph =

1/2 acceleration

12

velocity position graph =

2(acceleration)

13

acceleration due to gravity

9.8m/s2

14

free fall equations

Vf= gt
delta xy = 1/2gt2
Vf2= 2adeltax

15

vector

-arrow that show magnitude and direction
-length of arrow = magnitude
-point shows direction

16

how do you add vectors together

tip to tail method

17

what are scalars

magnitude only (ex. speed)

18

vectors have both

magnitude and direction

19

velocity is a ______

vector

20

inertia

-object's resistance to a change in motion
-directly related to mass

21

coefficient of friction

value that indicates how much frictional force there is between two surfaces

22

static friction

force that opposes the start of any motion

23

kinetic friction

force that opposes motion once the object is moving

24

static friction is always ________ than kinetic friction

bigger

25

depends on gravitational force and can change from location to location

weight

26

what something is made up of

mass

27

newtons law of universal gravitation

any two objects attract each other with a gravitational force, proprtional to the product of their masses and inversely proportional to the sqaure of the distance between them

28

what is the gravitational constant

G= 6.67 x 10^-11

29

law of universal gravitation aka

inverse square law

30

newton's third law

-for every action, there is an equal and opposite reaction
-forces occur in equal and opposite pairs