# Potential Energy

Good Essays
589 Words
Grammar
Plagiarism
Writing
Score
Potential Energy
examples of work done=force x distance

What is work?
Work in physics is the transfer of energy; work is done on an object when an applied force moves it through a distance. The link between work and energy is work done equals energy transferred. The units for the two are also the same (joules). E.g. 500J of work = 500J of kinetic energy.
Work is calculated with the formula: work done=force x distance moved
For example, if a force of 10 newton (F = 10 N) acts along point that travels 2 meters (d = 2 m), then it does the work W = (10 N)(2 m) = 20 N m = 20 J. This is approximately the work done lifting a 1 kg weight from ground to over a person's head against the force of gravity. Notice that the work is doubled either by lifting twice the weight the same distance or by lifting the same weight twice the distance.
Examples:
Force is measured in newton’s (N)
Distance is measured in meters (M)
Work done is measured in joules (J)

Examples of work done:
How much work is done by a person who uses a force of 27.5N to move a grocery buggy 12.3m?
W = F x d = (27.5N) (12.3m) = ?
Equation
W = 338.25J

55, 000J of work is done to move a rock 25m. How much force was applied?
F = W = 55,000J = ? d 25m
Equation

F = 2200J

You and 3 friends apply a combined force of 489.5N to push a piano. The amount of work done is 1762.2J. What distance did the piano move?
Equation
d= W = 1762.2J = F 489.5N
d = 3.6m

What is kinetic energy?
Kinetic energy is energy of motion. The kinetic energy of an object is the energy it possesses because of its motion. The kinetic energy of a point mass m is given by

All moving things have kinetic energy. It is energy possessed by an object due to its motion or movement. These include very large things, like planets, and very small ones, like atoms. The heavier a thing is and the faster it moves the more kinetic energy it has.
The amount of kinetic

## You May Also Find These Documents Helpful

• Good Essays

Energy is the ability to do work. It is important because every object we produce requires energy; for example transport, growth, and development. Humans and all other things get energy from the sun. Some forms of energy are kinetic, potential, thermal, chemical, electrical, and mechanical. Kinetic energy is the energy of motion. Potential energy is the energy which results from a position or configuration. Thermal, or heat, energy is the energy a substance or system has related to its temperature, for instance, solids, liquids, and gases. Chemical energy is the energy stored in the bonds of chemical compounds. Electrical energy is the energy carried by moving electrons in an electric conductor. Mechanical energy is the sum of potential energy and kinetic energy. The standard unit of measure for these different types of energy is measured in joules.…

• 520 Words
• 3 Pages
Good Essays
• Satisfactory Essays

4. Kinetic Energy- The energy of a body according to the motion of the body or of the particles in the system.…

• 385 Words
• 2 Pages
Satisfactory Essays
• Good Essays

Energy is the strength and ability that is required in order to perform physical or mental activities. There are different forms of energy these consist of: magnetic, kinetic, heat, light, gravitational, chemical, sound, electrical, elastic and nuclear.…

• 2915 Words
• 7 Pages
Good Essays
• Good Essays

* Work done is measured as the force against an object times the distance moved…

• 1410 Words
• 6 Pages
Good Essays
• Good Essays

Energy is a concept.� Most definitions of the word energy fail to provide its exact meaning when applied to scientific matters.� In science the word energy is a concept that expresses two measurable properties, heat and work.� Here is the relationship of energy, heat and work:…

• 1159 Words
• 5 Pages
Good Essays
• Good Essays

to exert a 110 N horizontal force to push the car at a constant speed. How much…

• 814 Words
• 4 Pages
Good Essays
• Good Essays

The definition of energy is the ability to do work. All energy is put into either kinetic energy or potential energy. When something is moving, it uses kinetic energy to keep it moving.…

• 581 Words
• 3 Pages
Good Essays
• Satisfactory Essays

0. A sailboat moves north for a distance of 10.00 km when blown by a wind from the exact southeast with a force of 2.00 × 104 N. The sailboat travels the distance in 1.0 h. How much work was done by the wind? What was the wind’s power? Your response should include all of your work and a free-body diagram.…

• 361 Words
• 2 Pages
Satisfactory Essays
• Better Essays

Read each question carefully. Make sure you know what you have to do before starting…

• 2166 Words
• 9 Pages
Better Essays
• Powerful Essays

Potential energy is stored energy which is ready to be used. Kinetics energy is active energy which can be used to do work (Burke, 1991). Energy balance in a physical activity requires a base of sound nutrition to supply the substrate fuels, which along with oxygen (O2) and water (H2O) meet widely varying levels of energy demand for body action (Gollan, 1991).…

• 3062 Words
• 13 Pages
Powerful Essays
• Satisfactory Essays

2. In changing a tire, a hydraulic jack lifts 7468 N on its large piston, which has an area of 28.27 cm2. How much force must be exerted…

• 621 Words
• 3 Pages
Satisfactory Essays
• Powerful Essays

Kinetic energy is the energy of motion, its all about where movement happens; even it’s just a simple movement, it still has kinetic energy, like just clapping, dancing, singing, writing, talking, etc. also it’s the energy of motion.…

• 1784 Words
• 8 Pages
Powerful Essays
• Good Essays

10. An 80 kg trucker loads a crate as shown below. He pushes the 40 kg box such that his arms are parallel to the ground. He pushes with a 100 N force. How much work is done by the trucker on the box?…

• 510 Words
• 3 Pages
Good Essays
• Better Essays

We can predict that more mass that you work on makes more work to do which means when mass increases, work increases too. In this lab, the mass of shoe is twice heavier than the mass of calculator. Therefore we can guess the difference of work because in the calculating procedure, height which is 0.9m and the gravity which is 9.81 apply same to both of mass. Adding, subtracting, multiplying and dividing of both factors in each side make same ratio but different results.…

• 621 Words
• 3 Pages
Better Essays
• Good Essays

Where W, stands for work, F stands for force and Δd for distance. Work is measured in joules. Power is the rate at which work is done. To calculate the power use this formula: P = W/Δt. P stands…

• 536 Words
• 3 Pages
Good Essays