Physics definitions.

Description

Physics definitions
Ebony  Hogan
Flashcards by Ebony Hogan , updated more than 1 year ago
Ebony  Hogan
Created by Ebony Hogan over 6 years ago
3
0

Resource summary

Question Answer
Light Is a form of energy belonging to the electromagnetic spectrum.
Parallax Is the difference in the apparent position of an object viewed along two different lines of sight.
Stereopsis Visual information taken from both eyes with the brain processing both images to enhance depth perception.
Parallax error e.g. reading a speedometer whilst moving head from side to side.
Normal. Perpendicular line drawn at point of incidence of light.
Incident ray light ray coming into the mirror
Reflected ray Light ray leaving the mirror.
Plane 2D surface.
Luminous source. Light source which generates it's own light e.g. glowstick/sun/lightbulb
Non-luminous source Light source which reflects of another source e.g. Book/shirt/floor
Real image An image caused by the actual intersection of light rays.
Virtual image an image caused by the apparent intersection of light rays
Curved mirrors Are part of the surface of a spherical mirror.
Concave Inside of sphere
Convex Outside of sphere
Inertia The measure of the body's ability to resist change in velocity. (Being thrown forward when a moving car stops)
Scalars Measurements with magnitude but no direction. (Speed/length)
Vectors measurements with magnitude and direction (Velocity/Momentum)
Lever A lever is a ridged body to rotate about a fixed point called a fulcrum (Door)
Hydrometer Device for measuring density.
Wave A wave is a transfer of energy without the net movement of the medium.
A standing/stationary wave. A wave that doesn't transfer energy and the amplitude is a constant.
Wavelength (Lambda) The distance between two consecutive peaks/troughs.
Frequency Number of oscillations per second.
Reflection. Bouncing of a wave off an object.
Refraction Waves refract when moving from one medium to another.
Diffraction the spreading of waves as they pass through gaps or around the edge of obstacles.
Doppler effect The apparent change in frequency due to the relative motion of a sound source and observer.
Polarisation When transverse waves in one plane can be blocked by a filter (3D movies)
Resonance The natural transfer of energy between two bodies with the same natural frequency.
Show full summary Hide full summary

Similar

AQA Physics P1 Quiz
Bella Statham
GCSE AQA Physics - Unit 3
James Jolliffe
Using GoConqr to study science
Sarah Egan
GCSE AQA Physics 1 Energy & Efficiency
Lilac Potato
Waves
kate.siena
Forces and their effects
kate.siena
Forces and motion
Catarina Borges
Junior Cert Physics formulas
Sarah Egan
OCR Physics P4 Revision
Dan Allibone
P2 Radioactivity and Stars
dfreeman
Physics 1A - Energy
Zaki Rizvi