Work And Energy

Front 1

Gravitational Potential Energy

Back 1

Is energy an object possesses because of its position on a gravitational field.

Hint 1

Front 2

Kinetic Energy

Back 2

Is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.

Hint 2

Front 3

Mechanical Energy

Back 3

Is the sum of potential energy and kinetic energy. It is the energy associated with the motion and position of an object.

Hint 3

Front 4

Conservation of Energy

Back 4

The law states that the total energy of an isolated system remains constant - it is said to be conserved over time.

Hint 4

Front 5

Work

Back 5

Work is done when a force that is applied to an object moves that object.

Hint 5

Front 6

Power

Back 6

Is the rate of doing work. It is equivalent to an amount of energy consumed per unit time.

Hint 6

Front 7

Simple Machines

Back 7

Is a mechanical device that changes the direction or magnitude of a force.

Hint 7

Front 8

Lever

Back 8

A rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other.

Hint 8

Front 9

Pulley

Back 9

Is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable or belt along its circumference.

Hint 9

Front 10

Inclined Plane

Back 10

Is a flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for raising or lowering a load.

Hint 10

Front 11

Wedge

Back 11

A piece of wood, metal, or some other material having one thick end and tapering to a thin edge, that is driven between two objects or parts of an object to secure or separate them.

Hint 11

Front 12

Screw

Back 12

A metal fastener having a tapered shank with a helical thread, and topped with a slotted head, driven into wood or the like by rotating, especially by means of a screwdriver.

Hint 12

Front 13

Wheel & Axle

Back 13

A simple machine consisting, in its typical form, of a cylindrical drum to which a wheel concentric with the drum is firmly fastened: ropes are so applied that as one unwinds from the wheel, another rope is wound on to the drum. Origin of wheel and axle expand.

Hint 13

Front 14

Mechanical Advantage

Back 14

Is a measure of the force amplification achieved by using a tool, mechanical device or machine system.

Hint 14

Front 15

Effort (input) Force

Back 15

Is the force that moves an object over a distance by overcoming a resistance force.

Hint 15

Front 16

Resistance (output) Force

Back 16

Is the force which an effort force must overcome in order to do work on an object via a simple machine.

Hint 16

Front 17

Effort (input) Distance

Back 17

The distance from the effort on a lever to the fulcrum.

Hint 17

Front 18

Resistance (output) Distance

Back 18

In classical mechanics, the distance from the resistance on a lever to the fulcrum.

Hint 18