PS1 Vocabulary
Opaque
An object that does not allow light to pass through it.
Draw a consensus model of Light
See teachers board
List the four components needed to see an object
Eye, Light, Direct path, and Object
A form of energy that moves in a straight line.
Light
An object/material that allows light to pass all the way through it.
Transparent
Explain why the pupil changes size depending on the amount of light
The pupil gets larger in the dark to let more light in, and smaller in bright places to allow less light in.
The angle of reflection must equal the angle of ________________________.
Incidence
Explain how models are used in science.
Models are used to explain a 2D or 3D representation of a concept.
A representation of something that is 2D or 3D in nature
Model
Explain how a shadow gets made.
What is Reflection?
When light bounces off of an object only in a certain direction.
Can more than 1 model be correct? Explain.
Yes, there can be more than 1 correct model showing a concept ex: maps and globes
What is a phenomenon?
A rare or odd event that repeatedly occurs and is observable
Why do we polish a rough surface? Does this effect reflection at all?
To fill in the holes and create a smooth surface. This increases reflection of light off of the object.
Explain why a red apple looks red to you.
All of the other colors of white light are absorbed by the apple while red light gets reflected back to my eye.
Explain the path that light takes when you see an object.
The light leaves the light source in all directions and when it reaches an object it will reflect or scatter off of the object at an angle back to the eye.
Material permitting light to pass through but diffusing it so that objects on the opposite side are not clearly visible.
Translucent
How does an icy windshield affect transmission of light?
The icy windshield is not good at transmitting light, it rather scatters the light off of the windshield instead
Light bounces off a rough surface like paper at various angles.
Scatter/Scattering
Draw a model of a shadow
See teacher board