Ch 1: Motion & Forces Flashcards
(25 cards)
To tell what is likely to happen in the future
Predict
A push or pull that can act or change an object
Force
A push or pull that happens when two objects touch
Contact forces
The pulling force that stretches objects
Tension forces
Force exerted by an object that has to be stretched or squeezed
Spring force
How far something travels
Distance
The exact place where it is
Position
A math problem that shows two equal amounts
Equation
A force that acts on an object without touching it
Non-contact forces
The way an object faces
Direction
The change in an object position compared to another position
Relative motion
The measure of how fast or slow something moves
Speed
A foot rubbing against a sidewalk is an example of…
Friction
Letting go of a rubber band is an example of…
Spring force
Stretching a rubber band is an example of…
Tension force
How are the force of friction and gravity alike? How are they different?
They are alike in that both change the movement of objects. They are different in that friction is a contact force and gravity is a non-contact force.
The total force acting on an object
Net force
To apply strength or effort
Exert
Compared with
Relative
The force that pulls objects toward each other
Gravity
Two equal forces acting on an object
Balanced forces
A change in an object’s location
Motion
The force that goes against the movement of an object
Friction
