motion unit 6

Question 1

the change in velocity per unit of time

Answer 1

acceleration m/s/s or m/s squared

Question 2

motion

Answer 2

change in postion relative to frame of referance

Question 3

momentum

Answer 3

property of matter that depends on both mass and velocity

Question 4

push or pull on an object

Answer 4

force

Question 5

forces that cancel or add up to zero… no net force

Answer 5

balanced forces

Question 6

newtons 1st law of motion

Answer 6

when forces are balanced: object in rest stay at rest: objects in motion stay in motion in straight line unless acted on by an outside force

Question 7

newtons 2nd law

Answer 7

when forces on an object are unbalanced the object will accelerate

Question 8

the sum of the forces are greater than zero

Answer 8

unbalance forces

Question 9

F/M=

Answer 9

acceleration M/S/S

Question 10

mass X velocity

Answer 10

momentum <p>

Question 11

point assumed to be at rest. motion is relative to this assumed fixed point.

Answer 11

frame of referance

Question 12

velocity

Answer 12

rate of change in position of an object. in a straight line. speed can be in any direction.

Question 13

d/t=

Answer 13

Velocity

Question 14

newtons 3rd law

Answer 14

every force is accompanied by an equal or opposite force

Question 15

friction

Answer 15

force that opposes motion and acts in opposite direction

Question 16

newtons law of universal gravitation

Answer 16

all masses attract of other masses

Question 17

pressure

Answer 17

force acting per unit of area on an object

Question 18

buoyancy

Answer 18

upward force of a fluid on an object

Question 19

archimedes principle

Answer 19

the bouyant force is equal to the weight of the displaced water

Question 20

bernoillis principle

Answer 20

as the forward speed of a fluid increases the sideways pressure decreases