physic chapter 4 (momentum)

Question 1

what is mass and weight?

Answer 1

mass is defined as the quantity of matter in a body.

Question 2

what are weight measured on?

Answer 2

newton(9.8)

Question 3

what is the factor that would affect the amount of momentum?

Answer 3

the mass of an object and the velocity of the object(mxv=p)

Question 3

what is the factor that would affect the amount of momentum?

Answer 3

the mass of an object and the velocity of the object(mxv=p)

Question 4

definition of momentum

Answer 4

momentum is the product of the mass and velocity of an object

Question 5

resultant force are equal to?

Answer 5

the rate of change of momentum

Question 6

resulant force=?

Answer 6

change in momentum/time(all the force added up together)

Question 7

what is impulse?

Answer 7

impulse calculate the change of momentum

Question 8

what is the law of conservation of momentum

Answer 8

the total momentum before and after an event is always equal

Question 9

what is circular motion?

Answer 9

objects in circular motion are always changing direction and therefore always changing velocity.

Question 10

how to calculate a centripetal force?

Answer 10

centripetal force always act perpendicular with the force.(a centripetal force is a specific example of a resultant force)