Table of Contents
What is an energy bar chart?
A work-energy bar chart represents the amount of energy possessed by an object by means of a vertical bar. The length of the bar is representative of the amount of energy present, with a longer bar representing a greater amount of energy. In a work-energy bar chart, a bar is constructed for each form of energy.
How do you draw an energy bar?
What is an LOL diagram in physics?
LOL diagrams are a way to represent how the energy is stored in the chosen system during various snapshots and to represent any changes in total energy for the system. Each “L” represents how the energy is stored during a particular snapshot (instant). The “O” shows the objects inside and outside the system.
What is a momentum bar chart?
Momentum conservation bar chart A properly drawn bar chart will show the same total momentum on the “before” side and the “after” side. Each side of the chart shows a bar for each object in the system. The size of the bar is determined by calculating the momentum p of the object in the initial or final state.
What are some advantages to representing the energy with pie charts?
Advantages of a Pie Chart It represents data visually as a fractional part of a whole, which can be an effective communication tool for the even uninformed audience. It enables the audience to see a data comparison at a glance to make an immediate analysis or to understand information quickly.
What is energy flow diagram?
Energy Flow Diagrams (often also referred to as Energy Flow Charts) are used to show energy and energy transformation visually and quantitatively. This may include primary energy used as raw fuels to feed into a system, energy supply, conversion or transformation, losses and energy being used.
What is the energy equation?
The equation developed by Albert Einstein, which is usually given as E = mc2, showing that, when the energy of a body changes by an amount E (no matter what form the energy takes), the mass (m) of the body will change by an amount equal to E/c2.
What is the equation for thermal energy?
The thermal energy equation is given as Q=mcฮT. where Q is the symbol for heat transfer, m is the mass of the substance, and ฮT is the change in temperature. The symbol c stands for specific heat and depends on the material and phase.
When a pendulum swings at which point is kinetic energy highest?
An active pendulum has the most kinetic energy at the lowest point of its swing when the weight is moving fastest.
What is the potential energy of a spring?
Potential Energy of a Spring Formula String potential energy = force ร distance of displacement. Also, the force is equal to the spring constant ร displacement.
In what way is mass related to potential energy?
The amount of gravitational potential energy an object has depends on its height and mass. The heavier the object and the higher it is above the ground, the more gravitational potential energy it holds. Gravitational potential energy increases as weight and height increases.
What is an energy diagram physics?
An energy diagram shows how the potential energy of an object depends on position and tells you all kinds of things about the motion of the object.nHere’s an example energy diagram for the boulder:nnThe potential energy curve shows how much potential energy the boulder has at each position.
How do you make a graph in lol?
What is Ke formula?
Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.
How does a range chart work?
Three rules of range bars: Each range bar must have a high/low range that equals the specified range. Each range bar must open outside the high/low range of the previous bar. Each range bar must close at either its high or its low.
What is the conservation of momentum equation?
The equation describing the Law of Conservation of Momentum is p=pโฒ , where p is the system’s initial momentum and pโฒ is the system’s final momentum. This equation can be expanded using the definition of momentum into m1v1+m2v2=m1vโฒ1+m2vโฒ2 m 1 v 1 + m 2 v 2 = m 1 v 1 โฒ + m 2 v 2 โฒ .
How do pie charts track energy?
The size of the pie determines the total amount of energy stored in the system. So, if the pie becomes larger, there is now more energy stored in the system. If the pie becomes smaller, there is now less energy stored in the system. The size of a slice doesn’t matter on its own.
What are the 3 ways of presenting data?
There are generally three forms of presentation of data: โข Textual or Descriptive presentation โข Tabular presentation โข Diagrammatic presentation.
When should you not use a pie chart?
If you still feel the urge to use them, make sure you only use them for a percentage breakdown where each slice represents a certain percentage out of 100% and order the slices in size to make it easier to read. Never use a pie chart if it has more than 5 slices and never-ever make it 3D.
How do you read an energy flow chart?
What is the 10% law?
According to the law, during the transfer of organic food from one trophic level to the next, only about ten percent of the organic matter is stored as flesh. The remaining is lost during transfer or broken down in respiration.
What are energy flow models?
The energy flow models link the trophic levels with each other showing the inputs and losses of energy at each trophic level. The flow of energy in an ecosystem takes place through the food chain and it is this energy flow which keeps the system going.
What unit is energy?
Joule (J). This is the basic energy unit of the metric system, or in a later more comprehensive formulation, the International System of Units (SI). It is ultimately defined in terms of the meter, kilogram, and second.
What is energy measured in?
The SI unit of energy/work is the joule (J), named for English physicist James Prescott Joule (1818 – 1889).