physics chapter 5

Question 1

what is momentum

Answer 1

momentum can be defined as mass x velocity

Question 2

what is the common unit for momentum

Answer 2

kilogram metre per second ( kg m / s)

Question 3

what is the formula to calculate momentum

Answer 3

momentum = mass x velocity
p= mv

Question 4

what is impulse

Answer 4

impulse is defined as force x time for which the force acts

Question 5

what is the common unit for impulse

Answer 5

newton second (N s)

Question 6

how do we calculate impulse

Answer 6

impulse = force x time

Question 7

what is resultant force (F)

Answer 7

resultant force (F), on an object is the change in momentum per unit time

Question 8

how do we calculate resultant force (F)

Answer 8

F= momentum / time

Question 9

what is the principle of conservation of momentum

Answer 9

when two moving objects collide, the total momentum of the two objects just before the collision is the same as the total momentum of the objects immediately after the collision. this is also known as the principle of momentum