Physics Unit 1
A mind map to help revision, covering basic point but not going into excruicating detail.
- Created by: Anisha
- Created on: 31-12-12 15:45
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- Physics Unit 1
- Types of Energy
- Kinetic
- Thermal
- Gravitational Potential
- Light
- Sound
- Elastic Potential
- Nuclear
- Chemical
- Electrical
- Effieciency
- Efficiency = Useful Energy Out / Total Energy In
- To get a percentage then you have to multiply the answer of the efficiency by 100
- Efficiency = Useful Power Out / Total Power In
- To get a percentage then you have to multiply the answer of the efficiency by 100
- Efficiency = Useful Energy Out / Total Energy In
- Convection, Conduction & Radiation
- Radiation
- An object that is hotter than its surrounding emits more radiation than it absorbs, (as it cools down).
- Convection
- Convection occurs when the more energetic particles MOVE from the HOTTER REGION towards the COOLER REGION - and take their heat energy along with them.
- Convection Currents are all about CHANGES in DENSITY
- Conduction
- Conduction is the transfer of heat between substances that are in direct contact
- The better the conductor the more the heat would rapidly transfer.
- Radiation
- Solar System
- Redshift is evidence that the universe is expanding.
- CMBR = Cosmic Microwave Background Radiation
- Waves
- Longitudinal Waves
- In LONGITUDINAL waves the oscillations (vibrations) are PARALLEL to the DIRECTION OF ENERGY
- Transverse Waves
- Electromagnetic waves are transverse waves, since the electric and magnetic fields oscillate at a right angle to the direction of motion.
- Longitudinal Waves
- Types of Energy
- Energy
- Energy CANNOT be created or destroyed
- Energy can be transformed . i.e. Television (Chemical) : Electrical, Thermal, Light and Sound Energy
- Dissipated (a word they like to use, to confuse): Energy is spread out and lost.
- Energy is only useful when converted from one form to another.
- Physics Unit 1
- Types of Energy
- Kinetic
- Thermal
- Gravitational Potential
- Light
- Sound
- Elastic Potential
- Nuclear
- Chemical
- Electrical
- Effieciency
- Efficiency = Useful Energy Out / Total Energy In
- Efficiency = Useful Power Out / Total Power In
- Efficiency = Useful Energy Out / Total Energy In
- Convection, Conduction & Radiation
- Radiation
- An object that is hotter than its surrounding emits more radiation than it absorbs, (as it cools down).
- Convection
- Convection occurs when the more energetic particles MOVE from the HOTTER REGION towards the COOLER REGION - and take their heat energy along with them.
- Convection Currents are all about CHANGES in DENSITY
- Conduction
- Conduction is the transfer of heat between substances that are in direct contact
- The better the conductor the more the heat would rapidly transfer.
- Radiation
- Solar System
- Redshift is evidence that the universe is expanding.
- CMBR = Cosmic Microwave Background Radiation
- Waves
- Longitudinal Waves
- In LONGITUDINAL waves the oscillations (vibrations) are PARALLEL to the DIRECTION OF ENERGY
- Transverse Waves
- Electromagnetic waves are transverse waves, since the electric and magnetic fields oscillate at a right angle to the direction of motion.
- Longitudinal Waves
- Types of Energy
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