Term
|
Definition
|
|
Term
|
Definition
2 word: attractive force
An attractive force that exists between ALL objects that have mass. |
|
|
Term
| Law of Universal Gravitation |
|
Definition
2 word: mass & distance
All objects are attracted to each other (gravity) with a force that depends on their mass and distance between them. |
|
|
Term
|
Definition
2 word: gravity exerted
A property of an object due to the gravitational force exerted on it. |
|
|
Term
|
Definition
2 word: number (of) atoms
The number of atoms (matter) that make up any object. |
|
|
Term
|
Definition
They are independent qualities of any object. Weight is the product of an object's mass within a gravitational field.
Mass + Gravity = Weight |
|
|
Term
|
Definition
2 word: opposes movement
The force that opposes the movement of two surfaces in contact with each other. |
|
|
Term
|
Definition
2 word: not moving
When the friction between two surfaces in contact is great enough…to keep them from moving…when a force is applied. |
|
|
Term
|
Definition
2 word: moving friction
When the force applied to an object is larger than the maximum static force, the object will move. |
|
|
Term
|
Definition
2 word: equal unmoving
When 2 or more equal forces are applied to an object in opposite directions. The object will NOT move. |
|
|
Term
|
Definition
2 word: object moves
When 1 or more forces are applied to an object and they are unequal. The object WILL move, change speed, or change direction. |
|
|
Term
| Newton's 1st Law of Motion |
|
Definition
An object will remain at rest…
or will remain moving at a constant speed…
unless it is acted upon by an unbalanced force. |
|
|
Term
|
Definition
| The resistance to a change in motion. |
|
|
Term
|
Definition
| An English scientist who first wrote about gravity, forces, and the motion of objects in 1688. |
|
|
Term
| Variables that affect friction: |
|
Definition
2 words: texture weight
Amount of friction force = the nature/TEXTURE of each surface and the WEIGHT/pressure between each object. |
|
|
Term
|
Definition
2 word: stretch compress
A force exerted by a material when it is stretched (tension) OR compressed. |
|
|
Term
|
Definition
2 word: pulling stretching
An Elastic Force where a pulling force is applied to an object to make the object stretch. |
|
|
Term
|
Definition
2 word: squeezing force
An Elastic Force applied to an object that makes it become smaller in size. |
|
|
