| A | B |
|---|
| m/s2 in a direction | unit for acceleration |
| m/s in a direction | unit for velocity |
| Newton | unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second |
| Newton's 1st law | continues in an existing state of rest or continual motion in the same direction until acted on be external force |
| inertia | object's resistance to change in motion |
| force | a push or pull exerted on an object |
| Newton's 2nd law | sum of the forces is equal to mass of the object multiplied by the object's acceleration |
| Newton's 3rd law | forces act in pairs and for every action there is an equal and opposite reaction |
| friction | the resistance to motion that occurs when an object encounters when moving over a surface |
| momentum | product of an object's mass and velocity |
| kg * m/s in a direction | unit for momentum |
| gravity | force the pulls objects toward eachother |
| velocity | speed in a definite direction |
| acceleration | rate at which velocity changes |
| mass | as this increases, inertia increases |
| motion | the state at which an object's distance from position is changing |
| action force | force exerted by first object on the second object |
| reaction force | force exerted by second object in response to first object |
| drag | force that acts in the opposite direction as object moving through air |
| centripetal force | force that acts on an object in a circular path and is directed to the center |
| Newton's 3rd law | as fuel in the rocket ignites, the force of gas expansion and explosion pushes out the back of the rocket and send the rocket skyward |
| Newton's 2nd law | as ice skater pushes harder with his leg muscles, he begins to move faster |
| Newton's 1st law | when you are standing up in a subway train, and the train suddenly stops, your body continues to go forward |
| friction | the blade of an ice skate skimming over the ice results in the production of heat energy causing the ice to melt |
| air resistance | sleek shape of bobsled allows greater speeds because of decrease in ____________ |
| terminal velocity | the constant speed that a freely falling object eventually reaches when the resistance of the medium through which it is falling prevents further acceleration. |
| lift | upward-acting force |
| thrust | described by Isaac Newton's second and third laws as reaction force |
| Bernoulli's Principle | the principle in hydrodynamics that an increase in the velocity of a stream of fluid results in a decrease in pressure. |
| net force | combination of all forces acting on an object. it changes the objects motion. |
| types of forces | tension, thrust, normal force, support force, weight, friction |
| weight | force with which the earth, moon, or other massively large object attracts another object towards itself. |
| gravity | the universal force of attraction acting between all matter. |
| 9.80 m/s^2 down | acceleration due to gravity on Earth |
| mass | as _____ increases, inertia increases |
| unbalanced force | Forces that produce a nonzero net force, which changes an objects motion |
| net force | The overall force on an object when all the individual forces acting on it are added together |
| Newton | unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second |
| Newton's 1st law | continues in an existing state of rest or continual motion in the same direction until acted on be external force |
| inertia | object's resistance to change in motion |
| force | a push or pull exerted on an object |
| Newton's 2nd law | sum of the forces is equal to mass of the object multiplied by the object's acceleration |
| Newton's 3rd law | forces act in pairs and for every action there is an equal and opposite reaction |
| friction | the resistance to motion that occurs when an object encounters when moving over a surface |
| gravity | force the pulls objects toward eachother |
| motion | the state at which an object's distance from position is changing |
| action force | force exerted by first object on the second object |
| reaction force | force exerted by second object in response to first object |
| drag | force that acts in the opposite direction as object moving through air |
| centripetal force | force that acts on an object in a circular path and is directed to the center |
| Newton's 3rd law | as fuel in the rocket ignites, the force of gas expansion and explosion pushes out the back of the rocket and send the rocket skyward |
| Newton's 2nd law | as ice skater pushes harder with his leg muscles, he begins to move faster |
| Newton's 1st law | when you are standing up in a subway train, and the train suddenly stops, your body continues to go forward |
| friction | the blade of an ice skate skimming over the ice results in the production of heat energy causing the ice to melt |
| air resistance | sleek shape of bobsled allows greater speeds because of decrease in ____________ |
| impulse | F x t |
| N * s | units for impulse |
| impulse | change of momentum of an object when the object is acted upon by a force for an interval of time |
| air resistance | force that is caused by air. The force acts in the opposite direction to an object moving through the air. |
| m/s | unit for speed |
| gravity | force the pulls objects toward eachother |
| mass | as this increases, inertia increases |
| motion | the state at which an object's distance from position is changing |
| seconds | unit for time |
| meters | unit for distance |
| frame of reference | point from which movement is determined |
| distance | measurement from one point to the next |
| distance | scientific unit is meters |
| displacement | distance and direction of object's change in position |
| speed | distance divided by time |
| speed | units are m/s or km/hr |
| constant speed | speed doesn't change |
| changing speed | result of speeding up or slowing down |
| average speed | total distance traveled divided by total time of travel |
| instantaneous speed | result of speedometer reading |
| velocity | speed in a definite direction |
| KG | MASS PHYSICS UNIT |
| SEC | TIME UNIT |
| meters | DISTANCE UNIT |
| KG * M/S IN A DIRECTION | MOMENTUM UNIT |
| M/S^2 IN A DIRECTION | ACCELERATION UNIT |
| M/S IN A DIRECTION | VELOCITY UNIT |
| ACCELERATION | TYPE OF MEASURE 26.55 m/s^2 south |
| MOMENTUM | TYPE OF MEASURE 75.32 kg*m/s down field |
| 9.80 m/s^2 down | acceleration due to gravity |
| VELOCITY | TYPE OF MEASURE 98.32 m/s up |
| DISTANCE | TYPE OF MEASURE 66.00 m |
| MOMENTUM | product of an object's mass and velocity |
| kg * m/s in a direction | unit for momentum |
| GRAVITY | force the pulls objects toward eachother |
| VELOCITY | speed in a definite direction |
| ACCELERATION | rate at which velocity changes |
| FRAME OF REFERENCE | point from which movement is determined |
| ACCELERATION | change in velocity per unit of time |
| VELOCITY | speed in a definite direction |
| MOMENTUM | result of multiplying mass of an object and the object's velocity |
| P = MV (MASS X VELOCITY) MOMENTUM FORMULA | P = MV (MASS X VELOCITY) |
| ACCELERATION | VELOCITY OF OBJECT CHANGES WITH TIME |
| (FV - IV) / T FORMULA FOR ACCELERATION | (FV - IV) / T |
| FORCE | m x a |
| NEWTONS | Units for force |
| LAW OF CONSERVATION OF ENERGY | ENERGY CANNOT BE CREATED OR DESTROYED |
| LAW OF CONSERVATION OF ENERGY | UNIVERSALLY ACCEPTED PRINCIPLE THAT TOTAL ENERGY REMAINS CONSTANT |
| MECHANICAL | SUM OF POTENTIAL AND KINETIC ENERGY IN A SYSTEM |
| JOULE (J) | SCIENTIFIC UNIT FOR ENERGY |
| THERMAL ENERGY | HEAT |
| FISSON | SPLITTING OF ATOMIC NUCLEI |
| FUSION | MERGING OF ATOMIC NUCLEI |
| POTENTIAL ENERGY | ENERGY OF POSITION |
| KINETIC ENERGY | ENERGY OF MOTION |
| POTENTIAL ENERGY | STORED ENERGY |
| KINETIC ENERGY | 1/2mv^2 |
| potential energy | mgh |
| mechanical energy | power that an object gets from its position and motion. |
| thermal energy | energy that is generated and measured by heat. |
| chemcial energy | energy stored in bonds of chemical compounds |
| gravitational potential energy | energy an object possesses because of its position in a gravitational field. |
| elastic potential energy | occurs when objects are impermanently compressed, stretched or generally deformed in any manner |
| kinetic energy | depends on mass and motion |
| LAW OF CONSERVATION OF ENERGY | ENERGY CANNOT BE CREATED OR DESTROYED |
| LAW OF CONSERVATION OF ENERGY | UNIVERSALLY ACCEPTED PRINCIPLE THAT TOTAL ENERGY REMAINS CONSTANT |
| JOULE (J) | SCIENTIFIC UNIT FOR ENERGY |
| kinetic energy | depends on mass and motion |
| Joule (J) | scientific unit for work |
| Watt (W) | scientific unit for power |
| power | work divided by time |
| work | force times distance |
| power | rate work happens |
| work | Pushing a car horizontally from rest |
| watt | Joule/second |
