Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
Force |
Something that changes the motion and or shape of an object. Forces can create movement and they can also change or stop movement. |
|
|
Friction |
A force that resists motion and produces heat |
|
|
Scientific Method |
A method of conducting science that usually includes an observation hypothesis experiment and theory. |
|
|
Observation |
Anything that is observed that is consistent (happens the same each time) |
|
|
Hypothesis |
A scientists "best guess" why something is happening |
|
|
Theory |
Scientists conclusion of why something happens the way it does |
|
|
Elastic force |
Returning force |
|
|
Lubricant |
A substance that reduces friction between two moving services |
|
|
Fluids |
A substance that flows with relative ease. Water (liquids) and air (gas) are both fluids. |
|
|
Gravity |
A force that pulls all things towards each other |
|
|
Mass |
The amount of water in an object |
|
|
Galileo |
Galileo Galilee 15 64–16 42. Conducted many experiments dealing with the earths gravitational pull. Many of his experiments were done on the famous leaning Tower of Pisa I. Like many scientist with new ideas his peers did not except his discoveriesand considered him a heretic. |
|
|
Centripetal force |
A force that continually pools a spinning object toward it center |
|
|
Pressure |
The amount of force on a certain amount of surface area |
|
|
Buoyancy |
The upward pushing force of a fluid against an object that is pushing down against the fluid |
|
|
Inertia |
The tendency of objects to resist a change in motion |
|
|
Speed |
Equals the distance traveled divided by the amount of time it took. |
|
|
Acceleration |
The rate of change of velocity in relation to time. Also see newtons second law of motion. |
|
|
Velocity |
The speed of an object in a certain direction |
|
|
Isaac newton: name his 3 Laws of Motion |
1.an object in motion tends to stay in motion
2.acceleration the rate of change of velocity in relation to time |
|
|
Bernoulli Principle |
2.1, 2.2. The pressure in a fluid decreases as the speed of fluid increases |
|
|
Centripetal forces |
4.2. A force that continually pulls a spinning object to word it center |
|
|
Archimedes |
5.2. A mathematician, born in 287 BC, who discovered the principle of buoyancy |
|
|
Displacement |
3.5 The straight-line change in position of an object |
|
|
Gram |
5.2. A metric unit of weight equaling approximately .035 ounces |
