science P4 Mint energy ( lights and shadows) Flashcards
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What is light?
Light is a form of energy that travels in waves.
True or False: Shadows are formed when light is blocked by an object.
True
Fill in the blank: The source of natural light during the day is the ____.
Sun
What do we call an object that allows light to pass through it?
Transparent object
Which of the following is NOT a source of light? (a) Sun (b) Lamp (c) Rock
Rock
What type of object reflects light?
A reflective object
True or False: A shadow can be created on a cloudy day.
True
What happens to a shadow when the light source moves closer to the object?
The shadow becomes larger.
Fill in the blank: An object that does not allow light to pass through it is called an ____.
Opaque object
What is the name of the phenomenon where light bends when it passes through different mediums?
Refraction
In which direction does a shadow typically point when the light source is behind an object?
In front of the object
What is the term for the area where light is blocked by an object?
Shadow
Which color of light is most commonly associated with shadows?
Shadows are generally colorless, but they appear darker than their surroundings.
True or False: Shadows can only be formed by the Sun.
False
What is the role of a light source in creating a shadow?
The light source illuminates an object, allowing a shadow to form where the light is blocked.
Fill in the blank: A ____ is a device that produces light.
Light bulb
What is one way to make a shadow larger?
Move the light source closer to the object.
Which of the following materials is likely to create a strong shadow? (a) Glass (b) Paper (c) Wood
Wood
True or False: Shadows can change shape and size.
True
What do we call the amount of light that passes through a transparent object?
Transmittance
Fill in the blank: A shadow is always ____ than the object creating it.
Darker
What effect does the angle of light have on shadows?
The angle of light affects the length and direction of shadows.
What is the purpose of a shadow puppet show?
To create visual stories using shadows.
True or False: A shadow can exist in complete darkness.
False
