PHYSICS FOURTH GRADE
First term
START
Index
Class 3
Class 2
Achievements
Class 6
Class 5
Class 4
Class 8
Class 7
ACHIEVEMENTS
1. The student recognizes light intensity as a measure we can get and how light travels through different materials, generating effects such as reflection, refraction, and absorption depending on the material light is exposed to. 2. The student describes shadows under different conditions.
Class 02
Light and its sources
Goal: To define light
What is light?
What do you know about light?
What are the different sources of light?
Light by Dr. Binocs
What is light?
Is a form of energy made of photons. In other words is the brightness that comes from different sources, either natural (sun,fire,etc.) or artificial (lamps, computer screen, etc.) and allows things to be seen.
Sources of lightNatural or Artificial?
Can you name other examples?
Conclusions
What did we learn today?
Did we achieve the goal of this class?
Class 03
Light as a form of Energy
Goal: Understand that light energy travels as wave and comes from a source
What is Energy?
Energy is the ability to make something move, happen, or change.
Light as a form of Energy
Light travels as a wave in a straight line away from the light source.
Light is a form of energy
The light we can see (The visible spectrum)
PRISMS
White light is a blend of colors. Dispersion causes light of different colors to be refracted differently and to leave the prism at different angles, creating an effect similar to a rainbow.
How does a compact disc act like a prism?
TRIVIA TIME
Let's check our knowledge
Class 04
Light Properties I
Goal: Define the light properties of brightness, color and being visible
Let's warm up
What is white light?
What is brightness?
WHAT IS BRIGHTNESS?
The intensity of light or brightness of light is related to the amount of light being seen.
WHAT IS BRIGHTNESS?
The closer the source of the light is, the greater the intensity or degree of brightness.
COLOR
- If white light is passed through a prism, it can be separated into light of different colors.
- The colors are red, orange, yellow, green, blue indigo, and violet. The same colors seen in a rainbow
Watch
BEING VISIBLE
In order for an object to be visible, it must either give off its own light (be source of light) or it must reflect light .
The moon and many object around us reflect light in order to be seen.
The sun, flashlights, light bulbs, etc give off visible light.
Class 05
Light Properties II
Goal: Define the light properties of refraction, reflection and absorption.
Let's warm up
When is an object transparent, translucent and opaque?
How does an ultrasound works?
REFRACTION
Light goes through the object and bends at an angle.
Examples: -Diamond ( a diamond is translucent, some light is able to pass through the material). -Glass (a glass is transparent, all light is able to pass through the material)
REFLECTION
Light bounces off the surface of a material at an angle equal to the angle of the incoming light wave.
Examples: -A Mirror, the moon
ABSORPTION
Light stops at the object and does not reflect or refract. Objects appear dark.
Examples: -Wood (wood is an opaque material)
Class 07
SHADOWS
Goal: Discuss what a shadow is and how is form it.
What is a Shadow?
When a beam of light shines on an opaque object the light rays which reach the object are stopped while those rays which pass by the edges continue their path. A region without light, called a shadow, forms behind the object.
Shadows
The shape of the sdadow may not be identical to the shape of the object because the shadow's shape depends on the position of the light source and on where the shadow falls.
Shadows
The size and intensity of the shadow depends on the size of the light source and the distance between the light source and the object.
Let's check our knowledge
Let's check our knowledge
Let's check our knowledge
Physics- 4th grade (first term)
Adelaida Pelaez Angel
Created on August 20, 2021
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Transcript
PHYSICS FOURTH GRADE
First term
START
Index
Class 3
Class 2
Achievements
Class 6
Class 5
Class 4
Class 8
Class 7
ACHIEVEMENTS
1. The student recognizes light intensity as a measure we can get and how light travels through different materials, generating effects such as reflection, refraction, and absorption depending on the material light is exposed to. 2. The student describes shadows under different conditions.
Class 02
Light and its sources
Goal: To define light
What is light?
What do you know about light?
What are the different sources of light?
Light by Dr. Binocs
What is light?
Is a form of energy made of photons. In other words is the brightness that comes from different sources, either natural (sun,fire,etc.) or artificial (lamps, computer screen, etc.) and allows things to be seen.
Sources of lightNatural or Artificial?
Can you name other examples?
Conclusions
What did we learn today?
Did we achieve the goal of this class?
Class 03
Light as a form of Energy
Goal: Understand that light energy travels as wave and comes from a source
What is Energy?
Energy is the ability to make something move, happen, or change.
Light as a form of Energy
Light travels as a wave in a straight line away from the light source.
Light is a form of energy
The light we can see (The visible spectrum)
PRISMS
White light is a blend of colors. Dispersion causes light of different colors to be refracted differently and to leave the prism at different angles, creating an effect similar to a rainbow.
How does a compact disc act like a prism?
TRIVIA TIME
Let's check our knowledge
Class 04
Light Properties I
Goal: Define the light properties of brightness, color and being visible
Let's warm up
What is white light?
What is brightness?
WHAT IS BRIGHTNESS?
The intensity of light or brightness of light is related to the amount of light being seen.
WHAT IS BRIGHTNESS?
The closer the source of the light is, the greater the intensity or degree of brightness.
COLOR
Watch
BEING VISIBLE
In order for an object to be visible, it must either give off its own light (be source of light) or it must reflect light .
The moon and many object around us reflect light in order to be seen.
The sun, flashlights, light bulbs, etc give off visible light.
Class 05
Light Properties II
Goal: Define the light properties of refraction, reflection and absorption.
Let's warm up
When is an object transparent, translucent and opaque?
How does an ultrasound works?
REFRACTION
Light goes through the object and bends at an angle.
Examples: -Diamond ( a diamond is translucent, some light is able to pass through the material). -Glass (a glass is transparent, all light is able to pass through the material)
REFLECTION
Light bounces off the surface of a material at an angle equal to the angle of the incoming light wave.
Examples: -A Mirror, the moon
ABSORPTION
Light stops at the object and does not reflect or refract. Objects appear dark.
Examples: -Wood (wood is an opaque material)
Class 07
SHADOWS
Goal: Discuss what a shadow is and how is form it.
What is a Shadow?
When a beam of light shines on an opaque object the light rays which reach the object are stopped while those rays which pass by the edges continue their path. A region without light, called a shadow, forms behind the object.
Shadows
The shape of the sdadow may not be identical to the shape of the object because the shadow's shape depends on the position of the light source and on where the shadow falls.
Shadows
The size and intensity of the shadow depends on the size of the light source and the distance between the light source and the object.
Let's check our knowledge
Let's check our knowledge
Let's check our knowledge