6th Grade Sc: Refl vs refr

Test

We see things because light reflects on them, but do all things reflect light the same way? And what about refraction? What is it and what can we do with it?
Check chapters 2 and 3 in your dossier and the links below and answer the quiz:
https://www.youtube.com/watch?v=Gr4if3vZXgw
https://www.youtube.com/watch?v=qbPfzOuIeSM
https://www.youtube.com/watch?v=OIf7Mnv92mg

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Edad recomendada: 11 años

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Good Shepherd

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6th Grade Sc: Refl vs refrVersión en línea We see things because light reflects on them, but do all things reflect light the same way? And what about refraction? What is it and what can we do with it? Check chapters 2 and 3 in your dossier and the links below and answer the quiz: https://www.youtube.com/watch?v=Gr4if3vZXgw https://www.youtube.com/watch?v=qbPfzOuIeSM https://www.youtube.com/watch?v=OIf7Mnv92mg por Good Shepherd 1 Light is best reflected on... a opaque objects. b transparent objects. c translucent objects. d refracted objects. 2 What is it? a It is a refracted lens. b It is a divergent lens. c It is an opaque lens. d It is a convergent lens. 3 What is it? a It is a convergent lens. b It is a divergent lens. c It is an opaque lens. d It is a refracted lens. 4 Why do this boy's eyes look smaller? a Because light is reflected on the glasses. b Because light is refracted through a divergent lens. c The eyes are not smaller. Light passes through transparent glasses and we can see clearly through them. d Because glasses use convergent lenses. 5 Why can't we see the handle? a Because the jug handle and the vegetable oil have the same refractive index. b Because vegetable oil is an opaque substance. c Because the jug handle and the vegetable oil are both translucent. d Because light can't be be reflected on vegetable oil. 6 Light reflects on opaque objects, but where can we see a specular (perfect) reflection? a On shiny smooth surfaces. b On transparent objects. c On glass and clear plastic. d On refracted glasses. 7 A mirror is... a a refracted object. b a transparent object. c an opaque object. d a translucent object. 8 What happens in these two pictures? a In picture A, light passes through the object. In picture B, light bounces off the surface. b In picture A, we can see what's in front of the surface. In picture B, we can see what's behind the object. c In picture A, we can see the object and what is in front. In picture B, we can only see the object. d In picture A, light is reflected. In picture B, light is refracted. 9 What is refraction? a A phenomenon where light changes speed and direction when it passes through another transparent substance. b An object that reflects light not very clearly. c A phenomenon that happens with some opaque objects. d An object that absorb light. 10 What's the difference between refraction and reflection? a Reflection happens on opaque objects. Refraction on transparent substances. b Reflection is about light bouncing off objects. Refraction is about light changing speed and direction. c Both answers are true. d Both answers are false. Feedback 1 Shiny smooth surfaces like mirrors' are best examples. 2 Short-sighted people (with myopia) use these lens so they can see things clearer. 3 Magnifying glasses and binoculars use convergent lenses so we can see things bigger through them. 4 Through a divergent lens we see things smaller. 5 The refractive index is the speed and direction which light passes through a transparent substance. 6 We can see things because lights reflects on them, but on mirrors we can see even what is in front. 7 Transparency is about light passing through. Opacity is about light bouncing surfaces and reflecting. 8 Mirrors are shiny smooth opaque objects that reflects light so perfectly you can see what is in front. 9 This different substance can be liquid, like water or oil; solid, like lenses, or even gaseous, like some atmosphere layers. 10 Remember: We can not see THROUGH mirrors, but we see what is in front.

6th Grade Sc: Refl vs refrVersión en línea

We see things because light reflects on them, but do all things reflect light the same way? And what about refraction? What is it and what can we do with it? Check chapters 2 and 3 in your dossier and the links below and answer the quiz: https://www.youtube.com/watch?v=Gr4if3vZXgw https://www.youtube.com/watch?v=qbPfzOuIeSM https://www.youtube.com/watch?v=OIf7Mnv92mg

por Good Shepherd

Light is best reflected on...

opaque objects.

transparent objects.

translucent objects.

refracted objects.

What is it?

It is a refracted lens.

It is a divergent lens.

It is an opaque lens.

It is a convergent lens.

What is it?

It is a convergent lens.

It is a divergent lens.

It is an opaque lens.

It is a refracted lens.

Why do this boy's eyes look smaller?

Because light is reflected on the glasses.

Because light is refracted through a divergent lens.

The eyes are not smaller. Light passes through transparent glasses and we can see clearly through them.

Because glasses use convergent lenses.

Why can't we see the handle?

Because the jug handle and the vegetable oil have the same refractive index.

Because vegetable oil is an opaque substance.

Because the jug handle and the vegetable oil are both translucent.

Because light can't be be reflected on vegetable oil.

Light reflects on opaque objects, but where can we see a specular (perfect) reflection?

On shiny smooth surfaces.

On transparent objects.

On glass and clear plastic.

On refracted glasses.

A mirror is...

a refracted object.

a transparent object.

an opaque object.

a translucent object.

What happens in these two pictures?

In picture A, light passes through the object. In picture B, light bounces off the surface.

In picture A, we can see what's in front of the surface. In picture B, we can see what's behind the object.

In picture A, we can see the object and what is in front. In picture B, we can only see the object.

In picture A, light is reflected. In picture B, light is refracted.

What is refraction?

A phenomenon where light changes speed and direction when it passes through another transparent substance.

An object that reflects light not very clearly.

A phenomenon that happens with some opaque objects.

An object that absorb light.

What's the difference between refraction and reflection?

Reflection happens on opaque objects. Refraction on transparent substances.

Reflection is about light bouncing off objects. Refraction is about light changing speed and direction.

Both answers are true.

Both answers are false.

Feedback

Shiny smooth surfaces like mirrors' are best examples.

Short-sighted people (with myopia) use these lens so they can see things clearer.

Magnifying glasses and binoculars use convergent lenses so we can see things bigger through them.

Through a divergent lens we see things smaller.

The refractive index is the speed and direction which light passes through a transparent substance.

We can see things because lights reflects on them, but on mirrors we can see even what is in front.

Transparency is about light passing through. Opacity is about light bouncing surfaces and reflecting.

Mirrors are shiny smooth opaque objects that reflects light so perfectly you can see what is in front.

This different substance can be liquid, like water or oil; solid, like lenses, or even gaseous, like some atmosphere layers.

Remember: We can not see THROUGH mirrors, but we see what is in front.

6th Grade Sc: Refl vs refr

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6th Grade Sc: Refl vs refrVersión en línea

por Good Shepherd

Light is best reflected on...

What is it?

What is it?

Why do this boy's eyes look smaller?

Why can't we see the handle?

Light reflects on opaque objects, but where can we see a specular (perfect) reflection?

A mirror is...

What happens in these two pictures?

What is refraction?

What's the difference between refraction and reflection?

Feedback