Ch 8: Rotational Motion

Question 0

number of rotations or revolutions per unit of time; often measured in rotations or revolutions per second or minute

Answer 0

rotational speed

Question 1

linear speed along a curved path

Answer 1

tangential speed

Question 2

reluctance or apparent resistance of an object to change its state of rotation, determined by the distribution of the mass of the object and the location of the axis of rotation or revolution

Answer 2

rotational inertia

Question 3

product of force and lever-arm distance which tends to produce rotational acceleration.

Answer 3

torque

Question 4

point of the center of an object’s mass distribution, where all its mass can be considered to be concentrated

Answer 4

center of mass

Question 5

point at the center of an object’s weight distribution, where the force of gravity can be considered to act.

Answer 5

center of gravity

Question 6

in general, a state of balance. for mechanical equilibrium , the state in which no net forces and no net torques act

Answer 6

equilibrium

Question 7

center directed force that causes an object to follow a curved or circular path

Answer 7

centripetal force

Question 8

apparent outward force on a rotating or revolving body

Answer 8

centrifugal force

Question 9

product of the mass and the velocity of an object

Answer 9

linear momentum

Question 10

product of a body’s rotational inertia and rotational velocity about a particular axis

Answer 10

angular momentum