Momentum and Impulse

Question 1

Momentum

Answer 1

product of an object’s mass and its velocity

Question 2

Newton’s second law

Answer 2

The net (or resultant) force acting on an object is equal to the rate of change of momentum of the object in the direction of the net force

Question 3

Impulse

Answer 3

the product of the resultant/net force acting on an object and the time the net force acts on the object

Question 4

Isolated system

Answer 4

An isolated system excludes external forces that originate outside the colliding bodies, e.g. friction. Only internal forces, e.g. contact forces between the colliding objects, are considered.

Question 4

Isolated system

Answer 4

An isolated system excludes external forces that originate outside the colliding bodies, e.g. friction. Only internal forces, e.g. contact forces between the colliding objects, are considered.

Question 5

Isolated system

Answer 5

An isolated system excludes external forces that originate outside the colliding bodies, e.g. friction. Only internal forces, e.g. contact forces between the colliding objects, are considered.

Question 6

Isolated system

Answer 6

An isolated system excludes external forces that originate outside the colliding bodies, e.g. friction. Only internal forces, e.g. contact forces between the colliding objects, are considered.

Question 7

Principle of linear momentum

Answer 7

The total linear momentum of an isolated system remains constant (is conserved)

Question 8

Projectile

Answer 8

an object which has been given an initial velocity and then it moves under the influence of the gravitational force only