IQ: Decide which of the following contain energy: - A donut - Charcoal - A plant - A car parked at the top of a hill - A radio playing music P. 62 4/20 FORMS OF ENERGY FOLDABLE

1)Heat 2)Chemical 3)Light 4)Electrical 5)Mechanical 6)Sound 7)Nuclear 7 FORMS OF ENERGY

Definition:  Is the ability to do work or cause a change. Interesting facts:  There are many different types of energy.  Measure in Joules (J)  All matter has energy! ENERGY

Definition: the energy of moving particles of matter, present in everything! Examples: Solar, Fire, Body, electricity, friction, Nuclear, Geothermal,etc Interesting Info: There is more Heat Energy in an Iceberg (more particles) than there is in a boiling pot of water! Pic/Symbol: 1) HEAT ENERGY (KINETIC)

Heat depends on the number of particles Temp. depends on the speed of particles Which has more Heat? Which has more Temp? An unheated swimming pool or a cup of boiling water? Ice Sculpture or lit match? HEAT VS. TEMPERATURE

Definition: Energy from the Electromagnetic Spectrum (EMS) Examples: Sun, light bulb, lightning, UV rays etc. Interesting Information: Light energy is used to cook or heat up food in the microwave. Picture/Symbol: 2) LIGHT/RADIANT ENERGY/ELECTROMAGNETIC (KINETIC)

Definition: Energy created by vibrating objects. Examples: sound from a speaker, radio, TV, thunder, or someone’s voice Interesting Information: Sound travels through a medium and the speed of sound depends on the density of the medium! Higher volume or higher pitch = higher energy. Picture/Symbol: 3) SOUND ENERGY (KINETIC)

Definition: Energy stored in the chemical compounds (bonds) of food & fuel. Examples: Fossil Fuels (Oil, Gas, & Coal) Wood, food, batteries etc. Info: One of our most abundant and important sources of energy! Released during chemical reactions or burning. Pic/Symbol: 4) CHEMICAL ENERGY (POTENTIAL)

Definition: The energy of moving electrons. Examples: Power plant, batteries, TV, static, current, etc. Interesting Information: Static Electricity- a build up of charge, not moving. Current electricity- a flow of electrons from –ve to +ve. Picture/Symbol: 5) ELECTRICAL ENERGY (KIN./POT.)

 Definition: Uses atomic reactions to produce heat, radiation, electricity and light, from the nucleus of an atom. Examples:  Fission (split) in nuclear power plants and fusion (fuse) of radioactive nuclei on the sun.  Info: A lot of energy from a little bit of matter. E=mc 2 Picture/Symbol: 6) NUCLEAR ENERGY (POTENTIAL)

Definition:The energy of an object that is due to its position (potential) or motion (kinetic). Examples: Roller coaster, car, walking, blinking, breathing, wind, ocean Interesting Information: ME Total ME= PE + KE Picture/Symbol: 7) MECHANICAL ENERGY (POT. & KIN.)

Identify all forms of energy present in this picture: 4/21 MECHANICAL- POTENTIAL AND KINETIC ENERGY

Energy forms brainpop

7A) POTENTIAL ENERGY Potential energy is stored energy Energy of position with the potential to move. Ex) Standing on a diving board, a stretched rubberband. GPE = mgh or weight (mg) x height(Joules) Highest at highest height. Higher with higher Mass.

 Kinetic energy is the energy of motion. Highest at bottom of hill.  Any object that is moving has kinetic energy.  Ex) Ball Moving, Wind, Sound, skier going downhill. 7B) KINETIC ENERGY

 m = mass (in kg), v = velocity (in m/s), and KE = kinetic energy (in J = joules).  There is a direct relationship between KE and mass and between KE and v squared.  Therefore as MASS INCREASES, KE INCREASES. And as SPEED INCREASES, KE INCREASES. KE= ½ mv 2 (Joules) 7B) KINETIC ENERGY EQUATION

 There is an inverse relationship between potential and kinetic energy  As an object goes up, its PE increases, KE decreases, and as it goes down its PE decreases, KE increases. Total ME stays same. Pendulum

 ENERGY DURING DOWNHILL SKIING

1.What is the GPE of a 1kg ball at a height of 10m? (g= 10m/s 2 ) 2.What is the total ME of a ball with PE= 20 J and KE = 10 J? P. 64

Study Jams Matter and Energy

IQ: Decide which of the following contain energy: - A donut - Charcoal - A plant - A car parked at the top of a hill - A radio playing music P. 60 4/20 FORMS OF ENERGY FOLDABLE

OQ: Identify the main type of energy represented by the following: a. An infrared lamp in a restaurant keeps food warm ________ b. a student listens to an Ipod ___________________________ c. A student picks up his backpack ________________________ d. A backpack that is on a students’ shoulders_______________ d. A hamburger is eaten at lunch _______________ e. Reactions on the sun that produce heat and light __________

IQ: Decide which of the following contain energy: - A donut - Charcoal - A plant - A car parked at the top of a hill - A radio playing music P. 60 4/20 FORMS OF ENERGY FOLDABLE

OQ: Identify the main type of energy represented by the following: a. An infrared lamp in a restaurant keeps food warm ________ b. a student listens to an Ipod ___________________________ c. A student picks up his backpack ________________________ d. A backpack that is on a students’ shoulders_______________ d. A hamburger is eaten at lunch _______________ e. Reactions on the sun that produce heat and light __________