| A | B |
|---|
| WORK | A force acts on an object, and the object moves in the direction that is parallel to the force (same direction) |
| WORK EQUATION | W = Fd (W=mad) |
| ZERO WORK | Force (F) and distance (d) are perpendicular to each other (ex. hold book up and walk with it) |
| NO WORK IS DONE | If the object does not move, then... |
| JOULE (J) | The unit for Work is the... |
| twice the work (directly proportional) | What happens if twice the work is exerted over the same distance? |
| twice the work (directly proportional) | What happens if the object moves twice the distance? |
| power | Amount of work done divided by the time interval during which the work is done |
| watt (w) | unit for power |
| power formula | P = W/t |
| power | Rate at which work is done |
| work | transfer of FORCE from one object to another over some DISTANCE |
| work | Consider the scenario below. When is the weight-lifter doing WORK? Lifting dumbbell from ground-level to waist-level |
| NOT Work (Weight-lifter only controls RATE of GRAVITY) | Consider the scenario below. When is the weight-lifter doing WORK? Lower dumbbell to waist-level |
| W = F x D = 500N x 4m = 2000.00J | How much Work is needed to lift an object that weighs 500N to a height of 4m? |
| W = F x D = 1000N x 8m = 8000.00J | How much Work is needed to lift 1000N to a height of 8m? |
| NO because the wall did not move any Distance. | A man pushes on a wall with ALL HIS MIGHT. The wall doesn't move. Is there work done on the wall? |
| unit for power | Joules/Second = Watts (W) |
| W = F x d = 70.00 J | If you exert a force of 35 N to lift a box a distance of 2 m, how much work is done? |
| P = W / t = 8.00 w | A stage manager at a play raises the curtain by doing 200 J of work on the curtain in 25s. What is the power output of the stage manager? |
| 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 |
| 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 |
| 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 |
| Joule (J) | scientific unit for work |
| 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 |
| energy | ______ is the ability to change things. It can change the temperature, shape,speed, position, or direction of an object. |
| transformation | A change of energy from one form to another is called energy ______________. During energy transformation, total amount of energy stays the same-no energy is lost or gained. |
| electrical --> light | Potential energy in flashlight batteries is transformed into __________ energy and then _____ |
| mass & velocity | Not all moving objects have the same amount of kinetic energy. The amount of kinetic energy an object depends on the ____ and _____ of the object. |
| warmer --> cooler | Thermal energy moves from ______ objects to ______ objects. |
| radient energy | Light energy that travels through electromagnetic waves and can move through empty space |
| mechanical energy | Energy of moving objects that is used to do work |
| conduction | Form of heat transfer where heat energy is directly transferred between molecules through molecular collisions or direct contact. |
| convection | Process by which, in a fluid being heated, the warmer part of the mass will rise and the cooler portions will sink. |
| radient | Energy that is radiated or transmitted in the form of rays or waves or particles. |
| energy flow direction | The hot energy (temp) always flows to cooler (temp) energies |
| 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 |
| 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 |
| force | a push or pull exerted on an object |
| 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 |
| 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 |
| 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 ____________ |
| lift | upward-acting force |
| thrust | described by Isaac Newton's second and third laws as reaction force |
| 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 |
| Newton | unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second |
| force | a push or pull exerted on an object |
| 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 |
| 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 ____________ |
| 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 |
| 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. |
| chemical potential 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 work |
| Watt (W) | scientific unit for power |
| power | work divided by time |
| work | force times distance |
| power | rate work happens |
