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Light - Coggle Diagram
Light
5.4 Light in the solar system
Spacecraft Galileo: Took Earth and Moon photo
Black Space: Surrounds Earth and Moon
Sun's Position: Beyond photo on the left
Illumination: Sun lights up half of Earth and Moon
Earth: A planet that reflects sunlight
Moon: Reflects sunlight
Earth & Moon Motion: Constantly moving in space
Moon's Orbit: Around Earth, taking 29 days
Earth's Orbit: Around Sun, taking 365¼ days
Solar System: Sun, planets, moons, comets, asteroids
Orbit Length: Closer planets have shorter orbits
Asteroids: Small rocky bodies orbiting the Sun
Asteroid Belt: Between Mars and Jupiter
Moons: Orbit planets and asteroids
5.2 Light travels in straight lines
Light Travel: Moves in straight lines
Light Beam: Called a ray
Source of Light: Rays spread in all directions
Obstacle: Rays stop or change when they hit something
Ray Diagram: Shows light travel
Ray Lines: Straight lines with arrowheads for direction
Light Source Example: Lamp
Arriving Ray: Hits an object (e.g., book)
Reflection: Light rays bounce off objects
Reflected Rays: Straight lines in a new direction
Vision: Reflected rays entering eyes allow us to see
5.3 Light reflects off
different surfaces
Seeing Objects: Light reflects into eyes
Reflective Surfaces: Vary in effectiveness
Smooth, Shiny Surface: Reflects light well (e.g., mirror)
Mirror Reflection: Shows face as an image
Image Definition: Reflection of the object (e.g., your face)
Non-Reflective Surface: We cannot see our image in wood
Light Interaction: Objects either reflect or absorb light
Light Absorption: Rough surfaces (e.g., paper) absorb more light
Reflection Quality: Smooth surfaces reflect better; rough ones absorb
5.5 Day and night
Globe: Model of Earth with an axis
Earth's Tilt: Leans on an imaginary axis
Spin: Anticlockwise, 24-hour rotation