Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy...
-
Upload
elvin-randall -
Category
Documents
-
view
223 -
download
0
Transcript of Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy...
![Page 1: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/1.jpg)
Energy Systems
![Page 2: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/2.jpg)
EnergyEnergy = “The ability to perform work”
3 Types of Energy:
• Chemical Energy (Food) is converted to…
• Kinetic Energy (Movement) or is stored as fat i.e….
• Potential Energy (Stored).
![Page 3: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/3.jpg)
WorkWork = Force x Distance
Usually equal to
bodyweight
If you run 1500m or 800m, which one are you doing more work in?
Answer – 1500m because the distance is greater
If 2 people run 1500m and one does it faster than the other, which is exerting more POWER?
Answer – the faster one
Power = Work performed per unit of Power = Work performed per unit of time (watts)time (watts)
![Page 4: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/4.jpg)
Power Experiment
Follow the instructions on the sheet to find out each individuals Power Output.
What do our findings show?Think about the results in terms of:
weights of performers in relation to times achieved,
methods of climbing stairs (use of rails, one or more steps at a time),
does fastest mean most powerful? Why/why not?
![Page 5: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/5.jpg)
Energy
The way energy is released in the body is complicated so for the purposes of A Level P.E. we learn an overview – but it is still quite complicated!!!
![Page 6: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/6.jpg)
Energy
There is only one useable form of energy in the body –
ATP (Adenosine Triphosphate)
• ATP provides energy in all living cells in the body, including muscle tissue
• All sources of energy, found in food we eat, have to be converted into ATP before the potential energy in them can be released.
![Page 7: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/7.jpg)
ATP
ATP – a high-energy phosphate made up of one molecule of adenosine and three molecules of phosphate
A T PAdenosine
Tri (Three)
Phosphate
A
P P P
The bonds that hold the compound together = a lot of potential energy
![Page 8: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/8.jpg)
ATP
When compounds are broken down (i.e. the bond between molecules are broken) energy is released.
A
P P P
A
P P P
Energy
A reaction that releases energy – EXOTHERMIC REACTION
![Page 9: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/9.jpg)
ATP
What causes compounds to breakdown?
Answer – Enzymes
The enzyme responsible for breaking down ATP = ATPase
A
P P P
A
P P P
Energy
![Page 10: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/10.jpg)
ATP
ATPase causes ATP to be broken down into ADP + P (i.e.Adenosine Diphosphate and a free Phosphate) releasing stored energy.
ATP ADP + P + energy
As energy cannot be created or destroyed, what does the released energy become?
Answer – converted to Heat and Kinetic Energy
![Page 11: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/11.jpg)
ATP
There is a limited supply of ATP in the body and once it runs out we need to resynthesise it to keep supplying energy.
When a compound is built up (synthesised) energy is needed to restore the bonds between the molecules
A reaction that needs energy – ENDOTHERMIC REACTION
![Page 12: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/12.jpg)
ATP Resynthesis
ATP resynthesis from ADP + P is an endothermic reaction
A
P P P
A
P P P
Energy
ADP + P + energy ATP
![Page 13: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/13.jpg)
ATP Resynthesis
Resynthesis of ATP is achieved in 3 ways in the human body:
The Phosphocreatine System (ATP-PC) (or alactic system)
The Lactic Acid System (or glycolysis)
The Aerobic System
![Page 14: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/14.jpg)
Energy Systems
Each system supplies energy for particular demands and duration, allowing us to cope with a variety of situations.
The ATP-PC and Lactic Acid systems are ANAEROBIC
The Aerobic system is AEROBIC (hence its name!!)
![Page 15: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/15.jpg)
Divide the sporting pictures into:
- Those needing quick energy over a short time (Anaerobic).
- Those needing slow energy over a long time (Aerobic).
You MUST be able to justify why you have placed a sport where it is!
TASKTASK
![Page 16: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/16.jpg)
AnswersAerobic Anaerobic
![Page 17: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/17.jpg)
TASK
Re-sort the pictures into a hierarchy.
Place the pictures you think need the most energy over a long time at the top of their list
Place the pictures needing the most energy over a short time at the top of the other list.
You MUST be able to justify why you have placed a sport where it is!
![Page 18: Energy Systems. Energy Energy = “The ability to perform work” 3 Types of Energy: Chemical Energy (Food) is converted to… Kinetic Energy (Movement) or.](https://reader035.fdocuments.us/reader035/viewer/2022062309/56649ec45503460f94bce469/html5/thumbnails/18.jpg)
AnswersAerobic Anaerobic