Physics P1 Flashcards
What are oscillations?
A regularly repeating motion about a central value
What is a period?
The time taken for one whole cycle of an oscillation before the motion start to repeat itself
What is displacement?
How far oscillation have moved from its mean value at any given time
What is amplitude?
A measure of its change in a single period
What are wavelengths?
The distance along the wave in its direction of travel between consecutive points where the oscillations are in phase
What is wave motion?
Waves transfer energy from one place to another, without causing any net movement of materials
What is wave speed?
The speed at which a wave travels
v=f⅄
speed = wavelength / time
What is phase difference?
Difference between two waves at the same point
What are the types of waves motion?
Transverse and longitudinal
What is a transverse wave?
A transverse wave is a wave whose oscillations are perpendicular to the direction of the wave’s advance
What is a longitudinal wave?
A longitudinal wave is a wave whose oscillations are parallel to the direction of the wave’s advance
Types of transverse waves
- Water Wave
- EM wave
Types of longitudinal waves
- Sound Wave
- Ultrasound wave
What is rarefaction?
Rarefactions are regions of low pressure due to particles being far together
What is compression?
Compressions are regions of high pressure due to particles being close together
What is diffraction?
Which a beam of light is spread out as a result of passing through a narrow aperture
What is a diffraction grating?
A flat plane object
What is transmission?
Wave energy passing though an object and diffraction happens
What is reflection?
Wave energy bouncing of a surface and its direction travel has been altered more than 180 degrees
What is a interference pattern?
A stationary pattern that can result from a super position of waves traveling, providing they are coherent
What is coherent?
Sticking together
What is superposition?
The adding of together of wave displacements that occurs when waves from multiple sources overlap
What is a path difference?
The difference in length between two rays
What is a quantum?
The smallest unit that can exist independently
