Shared Flashcard Set

Details

Force and Motion
Newton's Laws
29
Science
9th Grade
04/01/2008

Additional Science Flashcards

 


 

Cards

Term

inertia

Definition
Tendency of objects to remain in motion or stay at rest.
Term

addition

Definition
Forces in the same direction combine by ____.
Term
Wt. = m x g
Definition
Formula for weight.
Term
unbalanced forces
Definition
Forces on the same object that are not opposite or equal.  They change motion.
Term
Newton
Definition
Metric unit of force or weight
Term
Projectile
Definition
An object thrown or shot into the air.
Term
Newton's 3rd Law
Definition
For every action there is an equal and opposite reaction.
Term
mass
Definition
The amount of matter in an object.
Term
Isaac Newton
Definition
Who showed that the force that pulls an apple to the ground is the same force that keeps the moon in orbit around the earth.
Term
subtraction
Definition

Forces in opposite directions combine by ____.

Term
9.8 m/s2
Definition
On earth acceleration of a falling object due to gravity is _______.
Term
Weight
Definition
A measure of the force of gravity on an object.
Term
balanced forces
Definition
Forces on the same object that are opposite in direction and equal in size.
Term
orbital motion
Definition
An objects motion when its forward inertia equals the pull of gravity downward.
Term

lubricants

Definition
slippery substances that change sliding friction to fluid friction.
Term
rolling friction
Definition
Type of friction of a car driving down the road.
Term
air resistance
Definition
The reason a feather and a rock dropped at the same time and from the same height don't hit the ground at the same time.
Term
Newton's Law of Universal Gravitation
Definition
All objects in the universe attract each other by the force of gravity.
Term
weight
Definition
A change in the pull of gravity on you would result in a change in your______.
Term
Force
Definition
A push or a pull.
Term
mass
Definition

The size of the force of gravity between two objects depends on the distance between them and the object's________.

Term
Newton's 2nd Law
Definition
Force=mass x Acceleration
Term
Newton's 1st Law
Definition
An object at rest will remain at rest, and an object in motion will remain in motion, unless acted upon by unbalanced force
Term
Friction
Definition
A force that opposes motion
Term
gravity
Definition
Attractive force between all objects in the universe.
Term
curve
Definition
The motion of any projectile usually ends in a downward_____.
Term
Fluid friction
Definition

Type of friction when an object moves through air or water.

Term
terminal velocity
Definition
When a falling body no longer accelerates because the force of air resistance upwar equals the pull of gravity downward.
Term
Newton's 3rd Law
Definition
For every action there is an equal and opposite reaction
Supporting users have an ad free experience!