ch 2 all vocab

Question 1

motion

Answer 1

a change in an objects position to a reference point

Question 2

displacement

Answer 2

distance and direction of an objects change in position

Question 3

speed

Answer 3

distance an object travels per unit of time

Question 4

velocity

Answer 4

speed and direction of an moving object

Question 5

momentum

Answer 5

property of a moving object that equals its mass times in velocity

Question 6

acceleration

Answer 6

rate of change of velocity; can be calculated by dividing the change in the velocity by the time it takes the change to occur

Question 7

centripetal acceleration

Answer 7

acceleration of an object toward the center of a curved or circular path

Question 8

what is given in the answer of movement

Answer 8

unit

Question 9

what is given in displacement

Answer 9

unit and direction

Question 10

displacement can be calculated in the same direction true or false

Answer 10

true

Question 11

you subtract displacement if they are going same direction

Answer 11

true

Question 12

you cannot directoly calculate displacement if they are not the same or opissite directions

Answer 12

true

Question 13

what is the difference between speed and velocity

Answer 13

yes but it happens when you turn

Question 14

is it a possible to have a constant speed with a change in velocity

Answer 14

p=mv momentum= mass times velocity

Question 15

how do you calculate momentum

Answer 15

p=mv

Question 16

what are the units for momentum

Answer 16

kg*/s direction

Question 17

what is the unit for mass

Answer 17

kg

Question 18

what is the units for velocity

Answer 18

m/s direction