Light And Things Related To Light

1. How is a shadow formed?

When an object is blocking the lights path.

When the light turns to the east.

When the light turns to thw west

A shadow is formed when an object blocks the path of light. When light rays from a source hit an object, they are unable to pass through it, resulting in the formation of a shadow on the opposite side of the object. The shadow is created because the light rays cannot reach the surface behind the object, causing that area to be darker compared to the surrounding areas.

Explanation

A shadow is formed when an object blocks the path of light. When light rays from a source hit an object, they are unable to pass through it, resulting in the formation of a shadow on the opposite side of the object. The shadow is created because the light rays cannot reach the surface behind the object, causing that area to be darker compared to the surrounding areas.

2. Out of these four options, which surface can light pass through?

Opaque

Transparent

Light can pass through a surface that is transparent. Transparency refers to the property of allowing light to pass through without scattering or diffusing it. Transparent materials such as glass, water, and air allow light to pass through them, making objects on the other side visible. In contrast, opaque surfaces do not allow light to pass through, blocking the transmission of light and making objects behind them invisible.

Explanation

Light can pass through a surface that is transparent. Transparency refers to the property of allowing light to pass through without scattering or diffusing it. Transparent materials such as glass, water, and air allow light to pass through them, making objects on the other side visible. In contrast, opaque surfaces do not allow light to pass through, blocking the transmission of light and making objects behind them invisible.

3. Out of these four questions, which one is not a source of light?

Sun

Moon

The moon is not a source of light because it does not produce its own light. Instead, it reflects the light from the sun. The sun, on the other hand, is a source of light as it emits its own light and heat. Therefore, the moon is the correct answer as it does not emit light independently.

Explanation

The moon is not a source of light because it does not produce its own light. Instead, it reflects the light from the sun. The sun, on the other hand, is a source of light as it emits its own light and heat. Therefore, the moon is the correct answer as it does not emit light independently.

4. When an object is blocking the path of light, it creates a _______.

When an object blocks the path of light, it creates a shadow. Shadows are formed when light is obstructed by an opaque object, preventing it from reaching a surface. The object casts a silhouette on the surface behind it, creating a darker area where light is not able to reach. Shadows are formed due to the absence of light in the blocked area, resulting in a contrast between the illuminated and shaded regions.

Explanation

When an object blocks the path of light, it creates a shadow. Shadows are formed when light is obstructed by an opaque object, preventing it from reaching a surface. The object casts a silhouette on the surface behind it, creating a darker area where light is not able to reach. Shadows are formed due to the absence of light in the blocked area, resulting in a contrast between the illuminated and shaded regions.

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5. _______ is not a source of light because the suns light reflects onto it.

The moon is not a source of light because it does not produce its own light. Instead, it reflects the light from the sun. This is why we see the moon shining in the night sky. If the moon were a source of light itself, it would emit its own light and not rely on the sun's light for illumination.

Explanation

The moon is not a source of light because it does not produce its own light. Instead, it reflects the light from the sun. This is why we see the moon shining in the night sky. If the moon were a source of light itself, it would emit its own light and not rely on the sun's light for illumination.

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6. The first light bulb was invented by.....

Cristopher columbus

Alvin and the Chipmunks

Thomas Edison

Thomas Edison is credited with inventing the first practical incandescent light bulb. Although there were earlier versions of electric lamps, Edison's design was the first to use a carbon filament that could last for a significant amount of time. His invention revolutionized the way we illuminate our homes and buildings, leading to widespread adoption of electric lighting and transforming the world.

Explanation

Thomas Edison is credited with inventing the first practical incandescent light bulb. Although there were earlier versions of electric lamps, Edison's design was the first to use a carbon filament that could last for a significant amount of time. His invention revolutionized the way we illuminate our homes and buildings, leading to widespread adoption of electric lighting and transforming the world.

7. Objects that have that have lights of their own are called____________ of light.

Objects that have their own lights are called sources of light. These objects emit light energy, making them the origin or starting point of light rays. They can include natural sources like the sun, stars, and fire, as well as artificial sources like light bulbs and lamps. These sources emit light in various forms, such as visible light, infrared light, or ultraviolet light.

Explanation

Objects that have their own lights are called sources of light. These objects emit light energy, making them the origin or starting point of light rays. They can include natural sources like the sun, stars, and fire, as well as artificial sources like light bulbs and lamps. These sources emit light in various forms, such as visible light, infrared light, or ultraviolet light.

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