Preview

Year 10 physics summary

Good Essays
Open Document
Open Document
1236 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Year 10 physics summary
Energy

Energy can neither be created or destroyed, only changed into different forms.
Energy is only useful when it can be converted into different forms.
Energy is often dissipated - spread out and lost.
9 types of energy:
Thermal (heat) - flows from hot to cold objects
Kinetic (movement) - anything that is moving has this
Light - from the sun, light bulbs et cetera
Elastically potential - when things are stretched
Gravitational potential - anything that can fall
Electrical - whenever a current flows
Sound - vibrations in the air
Chemical -a store of energy e.g. Batteries, food et cetera
Nuclear - released in nuclear reactions
E.g. A television gives out light, sound and heat.
Potential and chemical energy are all stores of energy because they are not actively doing anything but waiting to be changed into another type of energy.

To understand energy transfer, we must understand particles,

States of Matter
Substances can have different states of matter:
The state of matter that a substance is depends on the amount of energy that each of the particles has.
Substances can change between states of matter:

As particles gain kinetic energy, they spread out more, therefore becoming liquid and then gas. When particles lose energy, they spread out less and therefore become liquid and then solid.

Heat energy is energy on the move. Moving from places of high temperature to areas of low temperature. The bigger the temperature difference, the faster the heat transfer.
Heat moves by three different processes:
Conduction - mainly in solids
Convection - mainly in liquids and gases
Radiation - any state of matter can absorb/emit infrared radiation.

Conduction
Vibrations in matter are passed on to transfer heat energy. This is called conduction.
Insulator - a material that stops energy being transferred.
Solids are good conductors because the particles are closer together and so the particles collide more frequently. Good

You May Also Find These Documents Helpful

  • Satisfactory Essays

    Chapter 18 Physics Lab

    • 343 Words
    • 2 Pages

    Fill out the tables below and check your work in the simulation. ( ½ pt each )…

    • 343 Words
    • 2 Pages
    Satisfactory Essays
  • Better Essays

    Year 11 Physics Assignment

    • 2804 Words
    • 12 Pages

    Task Description:The world communicates by making extensive use of the electromagnetic spectrum. For the average person this is commonly accessed using radio waves. These radio waves may be over the AM or FM radio wave bands or the radio waves that transmit our television signals. Not only are people always within a ‘phone call of each other anywhere in the world they are also able to find out exactly where in the world they are by use of Global Positioning System (GPS) these now hand held devices have many uses within our society.Your TaskPART ATo produce a report based on your Analysis of information to identify the waves involved in the transfer of energy in television signals and draws a flow diagram that describes the energy transformations in television signals as they are transmitted from the studio to your home. Outline how the modulation of amplitude and frequency of radio waves are used to transmit information.PART BLocate and collect a brochure and at least one scientific article that allow you to assess the accuracy and evaluate the validity of scientific information presented in sales brochures of GPS’s in comparison with similar information presented by the scientific community. Use diagrams to help discuss some of the underlying scientific principles related to waves are related to how GPS’s work and identify areas of current research into GPS’s.…

    • 2804 Words
    • 12 Pages
    Better Essays
  • Good Essays

    5.09 Module 5 Review

    • 5317 Words
    • 22 Pages

    * Matter exists in different phases, also called states, which include solid,liquid, gas, and plasma. These phases can be distinguished at the molecular level by how the particles are held together.…

    • 5317 Words
    • 22 Pages
    Good Essays
  • Powerful Essays

    Isaac Newton’s Second Law of Motion (F=ma) explains the relationship between force and acceleration in motion. The application of force on an object causes an…

    • 6862 Words
    • 28 Pages
    Powerful Essays
  • Good Essays

    States of Matter

    • 470 Words
    • 2 Pages

    In the solid state state, the particles are packed closely together in a regular manner. The focus of attraction between these particles are very strong and as a result solids are usually very hard and very difficult to compress. Futhermore, the solids cannot move out of position, causing solids to have a fixed volume and a definite shape. In addition, the particles in a solid have a very small amount of kinectic energy.…

    • 470 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Use your graph to estimate the time taken for the child to travel 15 metres.…

    • 414 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Your exam will be multiple choice Exam # 1 Introductory Chemistry Be sure to show your set up for all mathematical problems. Your answers must have the correct number of significant digits and the correct units. I. Chemistry is a quantitative science therefore we must make measurements. All measurements have an uncertainty that we need to be aware of in our calculations. A. We need to be able to determine the number of significant figures in a measurement. For the following measurement state the number of significant figures. (4pts) 1. 1.000 cm 2. 2.590 x 10-5 m 4 3. 0.020 g 4. 1000 cm 2 1…

    • 1413 Words
    • 6 Pages
    Satisfactory Essays
  • Satisfactory Essays

    d. Earth (m= 5.98 x 1024 kg) moving in its orbit with a velocity equal to…

    • 339 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    These forms of energy can be transferred and transformed between one another and exists in different forms. Example energy is stored as chemical energy in food, batteries and fuels which can be converted into sound, light and heat.…

    • 503 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Organism's Metabolism

    • 583 Words
    • 3 Pages

    Energy is the capability to cause change. There are various forms of energy, but only one fact remains true of all forms: energy is always conserved.…

    • 583 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Physics 81 Essay

    • 560 Words
    • 3 Pages

    Why do I want to become an engineer? Is a question I often ask myself and often have difficulty answering. When other people are asked with this question, they would have instant answers such as: It’s been my dream since I was little, I like machines, It’s because of LEGO., My father is an engineer., and etcetera. I wish I could have the same answer as them. I wish I could tell a story where when I was young, I would take my toys apart and try to figure out how it’s made and how it works and that is how I was inspired to be an engineer , but sadly my story is not like that.…

    • 560 Words
    • 3 Pages
    Satisfactory Essays
  • Satisfactory Essays

    PH2530: Physics Week 6

    • 493 Words
    • 2 Pages

    Submit your work on a separate sheet of paper to your instructor at the end of the exercise.…

    • 493 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Ib Physics Notes

    • 2190 Words
    • 9 Pages

    At the end of the examination, indicate the numbers of the questions answered in the…

    • 2190 Words
    • 9 Pages
    Powerful Essays
  • Good Essays

    Energy Concept

    • 604 Words
    • 3 Pages

    What is potential energy? Stored energy, it’s energy that an object has because of its location or structure, such as the energy contained by water behind a dam or by a compressed spring.…

    • 604 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Electrical energy could be considered as the most convenient form of energy.It could be converted from one form into any other form.For example we know that a bulb glows when electricity passes through it ,it is the conversion of electrical energy into light energy.A wire gets heated when current pass through it for a long time,it is conversion of electrical energy into heat energy and so on.…

    • 418 Words
    • 2 Pages
    Good Essays