chapter 2 lesson 1.2 Flashcards
(19 cards)
A push or pull on an object is called ______
force
A ___________ is a push or a pull on one object by another that is pushing it
contact force
A force that one object can apply to another object without touching it is a __________ force
noncontact force
__________ is an attractive force that exists between all objects that have mass
gravity
_________ is the amount of matter in an object
mass
___________ is the gravitational force exerted on an object
weight
___________ is force that resists the motions of two surfaces that are touching
friction
the combination of all the forces acting on an object is __________
net force
forces acting on an object that combines and form a net force of zero are _________ forces
balanced forces
forces acting on an object that combines and forms a net force that is not zero or __________ forces
Unbalanced forces
according to _______________ if the net force on an object is zero, the motion of the object does not change
Newton’s first law of motion
__________ the tendency of an object to resist a change in its motion is called ________
inertia
___________ forces cause an object to move
Unbalanced
According to ____________ if the net force On an object is zero, the object’s motion does not change
newtons, first law of motion
_________ is the property that resist a change in the motion of an object
Inertia
When two forces acting on an object in the opposite directions combine the _________ is the same direction as the larger force
The strength of the ________ is a sum of positive and negative forces.
net force
Forces can be even contact, such as karate chop
or noncontact such as gravity
Each type is described by its _________ and _________
strength and direction
Gravity forces that act between two objects that have _____
The attraction is stronger for objects with greater ______
mass
_______ can reduce the speed of objects sliding past each other
Air resistance is a type of fluid _______ that slows the speed of a falling object
Friction
