| Term | Definition |
|---|
| strong force | action at a distance force that holds the particles of the nucleus together |
| vector | arrow in science that defines the direction and strength of force |
| Newton's Second Law | an object accelerates in direction pushed. if object is pushed twice at hard, it will accelerate twice as much. if object is twice the mass. it accelerates half as much |
| How does mass and acceleration change force | Force = Mass x Acceleration (Newton's 2nd Law of Motion) |
| Newton's Third Law | For every action, there is an equal and opposite reaction. ex: ball and bat |
| Law of conservation of momentum | total momentum of objects in an interaction does not change |
| momentum | mass in motion. depends on mass and velocity |
| weight | measure of the force of gravity |
| Air resistance | objects falling through this experience a type of fluid friction |
| free fall | when the only thing acting upon an object is gravity |
| fluid friction | the friction that occurs when an object moves through a fluid |
| centripetal force | any force that pulls an object to a center of follow a curved, circular path |
| spring force | force exerted by a stretched or compressed spring upon any object, which is attached to it ex: spring in pen |
| tension force | force which is transmitted through a string rope, cable or wire when its pulled tight by forces in opposite directions ex: yo yo |
| Air resistance force | special type of frictional force which acts upon objects traveling through air |
| normal force | the support force exerted upon an object which is in contact with another stable object |
| Balanced forces | 2 forces balance each other if they are of equal magnitude and act in opposite directions |
| Geologist | a scientist who studies the solid and liquid matter that makes up the earth |
| boundary | place where two plates meet |
| plate tectonics | theory stating that the surface of the earth is broken into large plates and the size and position of these plates change over time |
| deceleration | motion in which speed decreases |
| negative acceleration | motion in which speed decreases |
| acceleration | the rate at which velocity changes. refers to increasing speed, decreasing speed and changing direction |
| speed | the distance an object travels in one unit of time |
| transform boundary | when two plates slide past each other |
| convergent boundary | when two plates come together |
| divergent boundary | when two plates split apart |
Combine with other sets
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