Chapter 7 - Impulse and Momentum

Question 1

Average force and time of contact

Answer 1

Impulse of the force

Question 2

Impulse equation

Answer 2

J=FΔt

Question 3

What type of quantity is impulse?

Answer 3

Vector quantity

Question 4

How an object responds to a force depends on the mass and velocity of an object and their effect is included in what concept?

Answer 4

Concept of Linear Momentum

Question 5

Equation for linear momentum

Answer 5

p=mv

Question 6

What type of quantity is linear momentum?

Answer 6

Vector quantity

Question 7

Standard unit for impulse

Answer 7

N(Newton)•s(second)

Question 8

Standard unit for linear momentum

Answer 8

kg(kilogram)•m(meter)/s(second)

Question 9

When a net average force acts on an object during a time interval t, the impulse of this force is equal to the change in momentum of the object

Answer 9

Impulse-momentum theorem

Question 10

Equation for Impulse-momentum theorem

Answer 10

ΣF Δt=mvf-mvo

Question 11

Forces that the objects within the system exert on each other

Answer 11

Internal forces

Question 12

Forces exerted on the objects by agents external to the system

Answer 12

External forces

Question 13

Equation for impulse momentum theorem

Answer 13

(Sum of average external forces) Δt=Pf-Po

Question 14

Equation for conservation of linear momentum

Answer 14

Pf=Po

Question 15

The total linear momentum of an isolated system remains constant and is conserved. An isolated system is one for which the vector sum of the average external forces acting on the system is zero.

Answer 15

Principle of Conservation of Linear Momentum

Question 16

Collision in which the total energy of the system after collision is equal to the total kinetic energy before the collision

Answer 16

Elastic Collision

Question 17

Collision in which the total energy of the system is not the same before and after the collision

Answer 17

Inelastic Collision

Question 18

Collision that happens when the two objects stick together

Answer 18

Completely Inelastic Collision

Question 19

Average location for total mass

Answer 19

Center of Mass