chaptter 11 - motion

Question 1

we are always _____

Answer 1

moving

Question 2

to describe moving, you must state

Answer 2

direction

Question 3

motion-

Answer 3

a frame of refrence – a system of objects that are not moving with the respevct of one another

Question 4

relative motion-

Answer 4

a movement in relation to a frame of refrence

Question 5

distance-

Answer 5

the length of a path between to points

Question 6

the SI unit for mesuring distance is

Answer 6

the meter (m) and the kilometer (km)

Question 7

to describe an objects position relative to a given point you need to know

Answer 7

how far away and what directions the object is from the point

Question 8

_____ is the length of the path between two points

Answer 8

distance

Question 9

displacements-

Answer 9

the direction from the starting point and the length of a straight line from the starting point to the ending point

Question 10

______ are used when givinig directions

Answer 10

displacements

Question 11

Accurate directions-

Answer 11

gives the direction from the starting point

Question 12

displacemnets are an example of ____

Answer 12

vector

Question 13

vector-

Answer 13

a quantity that has a magnitude and direction

Question 14

magnitude can be the

Answer 14

size,length,and ammount of arrows on a graph or map

Question 15

Add displacements using ____

Answer 15

vector addition

Question 16

resultant vector-

Answer 16

the vector sum or two or mre vectoris- starting to end-

Question 17

velocity have a _____ and speed doesnt

Answer 17

direction

Question 18

velocity has a ______

Answer 18

direction

Question 19

speed only has

Answer 19

_______

Question 20

speed -

Answer 20

the ratio of the distance the object moves to the amount of time

Question 21

the SI unit of speed meters per second is

Answer 21

(m/s)

Question 21

the rate at which velocity changes is called

Answer 21

acceleration

Question 21

Average speed-

Answer 21

the total traveled

Question 22

accleration can be used to describe changed in

Answer 22

direction

Question 23

acceleration is a

Answer 23

vector

Question 24

freefall-

Answer 24

the movement of an object toward earth solely cause of gravity

Question 25

the unit for accleration is

Answer 25

m/s^2)

Question 26

motion can be characterized by

Answer 26

both speed and direction at the same time

Question 27

constant acceleration-

Answer 27

a steady change in velocity by the total time

Question 28

a non linear graph is a curve to connect the

Answer 28

data points that were plotted

Question 29

instaneous acceleration

Answer 29

how fast a velocity is changing at specific instant