Download presentation
Presentation is loading. Please wait.
1
Energy
2
What is Energy The actual definition of energy is ‘the ability to do work’ Energy cannot be created or destroyed, just changed into different types. It comes in many forms, a few of which we need to know about:
3
Kinetic energy Energy that produces movement The faster something moves, the more kinetic energy it has.
4
Mechanical energy A variation of kinetic energy, this is movement energy when something is turning around a pivot (e.g. a bike wheel or a motor engine)
5
Chemical energy Energy stored in chemicals. We gain energy through the food we eat. Putting fuel in a car is another form of chemical energy.
6
Potential energy A general term for any kind of stored energy. If we hold a netball in the air it has potential energy.
7
Other types Sound energy Heat energy Light energy Electrical energy
And many, many more (most not important in sport and physical activity)
8
Energy for PE When a message travels to the neuromuscular junction it is in the form of….. Electrical energy And when it crosses the synaptic cleft it is converted into….. Chemical energy This then allows a muscle to contract and so becomes…. Kinetic energy
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.