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Paper 1 (Waves (Waves for Detection and Exploration (Ultrasound-These have…
Paper 1
Waves
Waves and Wave Properties
Transverse and Longitudinal Waves
Properties of Waves
Wave Speed
Reflection, Refraction and Sound
Reflection
Refraction
Sound Waves
Waves for Detection and Exploration
Ultrasound
-These have a frequency greater than 20kHz, so they cannot be heard by humans. When an ultrasonic wave meets a boundary between 2 different media it is partially reflected. It is possible to determine how far away a boundary is by measuring the time taken for the reflected ultrasonic waves to return to a detector. This technique can be used to detect defects in products without having to actually cut into them. It can also be used in medicine to detect kidney stones and tumours, pre-natal scanning, and producing images of damaged ligaments and muscles
Echo Sounding
Seismic Waves
The Structure of the Earth
The Electromagnetic Spectrum
Electromagnetic Waves
Uses and Applications of EM Waves
Radio Signals
Hazards of EM Waves
Lenses
Lenses
Images and Magnification
Ray Diagrams
Light and Black Body Radiation
Visible Light
Colour
Infrared Radiation
Black Bodies
Electricity
An Introduction to Electricity
Standard Circuit Symbols
Electric Charge and Current
Resistance and Potential Difference
Circuits and Resistance
Resistors and Other Components
Circuits and Power
Series and Parallel Circuits
Power in Circuits
Domestic Uses of Electricity
Direct and Alternating Current
Mains Electricity
Dangers of Mains Electricity
Power and Efficiency
Electrical Energy in Devices
Energy Transfers in Appliances
The National Grid
Static Electricity
Static Charge
Electrical Sparks
Electrostatic Forces
Electric Fields
Energy
Energy Stores and Transfers
Energy Stores And Systems
-A system is an object or group of objects. When a system changes, there are changes in the way energy is stored. Diagrams are a useful way to illustrate how the energy is redistributed when a system is changed. The sankey diagram is useful for showing this
Calculating Energy Changes
Specific Heat Capacity and Internal Energy
Energy Transfers and Resources
Energy Transfers
National and Global Energy Resources
