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6th Grade Science > Light And Matter > Flashcards

Light And Matter Flashcards

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1
Q

What is Light?

A

-Light is a type of energy that travels in waves
-It can travel through space, air, water, and other transparent materials
-Light travels in a straight line until it interacts with matter

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2
Q

Examples of Natural Light

A

The Sun, Stars, Fireflies are examples of?

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3
Q

Examples of Artificial light?

A

Light bulbs, flashlights, lasers are examples of what kind of light?

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4
Q

What are the 3 properties of light?

A

Reflection
Refraction
Absorption

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5
Q

What is Reflection?

A

When light bounces off a surface

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6
Q

What is refraction?

A

When light bends as it passes through different materials (like glass or water)

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7
Q

What is Absorption?

A

When light is taken in by a material and transformed into heat

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8
Q

How do we see objects?

A

They reflect light into our eyes

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9
Q

What is a luminous object?

A

Objects that emit their own light. Like the sun, a light bulb

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10
Q

What is a non-luminous object?

A

Objects that reflect light. Like a chair, the moon, books

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11
Q

What type of light is made up of many colors?

A

White light

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12
Q

What breaks light up into multiple colors?

A

A prism

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13
Q

Primary Colors of Light

A

Red, Green, Blue

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14
Q

Why are objects different colors?

A

Objects absorb some colors and reflect others, which is why they appear to be certain colors

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15
Q

What is transparent material?

A

Allow most of the light to pass through (Glass)

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16
Q

What is Translucent material?

A

Let some of the light pass through but scatter it, so objects behind them appear blurry (frosted glass)

17
Q

What is Opaque material?

A

Block light completely, so you cannot see through them (wood)

18
Q

What causes a shadow?

A

When an object blocks light

19
Q

What affects the size of the shadow?

A

The size and shape of the shadows depend on the light source position and the object distance from the light source

20
Q

What is the law of reflection?

A

The angle at which light hits a surface (angle of incidence) is equal to the angle at which it reflects off the surface (angle of reflection)

21
Q

What is a mirror?

A

Reflects light in a regular way, producing clear images

22
Q

What do rough surfaces do to light/reflection?

A

They scatter light in different directions, or inducing blurry or no images

23
Q

What happens to the speed of light when it passes through materials?

A

It changes speed when makes it bend (Example straw appears bent when in glass of water)

24
Q

What is Refraction?

A

The bending of light

25
Q

What is absorption of light?

A

When light hits an object some is absorbed and turned into heat, the darker the object the more light that is absorbed thus more heat

6th Grade Science (1 decks)

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