chapter 14

what is equivilent to one newton?

1 kgm/s^2

what is the mass of gravity

9.8 m/s^2

what has more inertia? a. a shopping cart full of groceries b. an empty shopping cart c. they have the same amount of inertia

A.

what is the mathematical formula that summarizes newton's 2nd law

a=f/m

newton's 2nd law describes the relationship between force, mass, and

acceleration

in an isolated system momentum is a

conserved quantity

in newton's 2nd law, the relationship between force and acceleration is a ________ relationship

direct

true or false: action/reaction forces cancel like unbalanced forces

false

another definition of mass is a measure of an object's

inertia

newton's first law is also called the law of

inertia

objects with more mass have more

inertia

the tendency of an object to resist a change in its state of rest or motion is called

inertia

in newton's 2nd law, the relationship between mass and acceleration is a _________ relationship

inverse

what are the units of mass

kg

what are the units of momentum (p)

kgm/s

____________ says that objects continue in their state of rest, or the motion they already have unless they are acted on by an unbalanced force

law of inertia

what are the units of velocity

m/s

what are the units of acceleration

m/s^2

_______ is a property that makes a moving object hard to stop

momentum

what are the units of force

newton

what is the unit of weight

newton

when a bug traveling west collides with the windshield of a car traveling east, what can be said about the collision?

the bug and the car feel the same force

if the net force acting on an object is not zero, then the forces acting on the object are said to be

unbalanced