6.2: Refraction

What is REFRACTION?

• the reflection of light off a surface

• the change in direction of a wave passing from one medium to another due to a change in its speed

• the absorption of light by a medium

• the bouncing of light

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NGSS.MS-PS4-2

What is an OPTICAL ILLUSION?

• an image that tricks the brain into seeing something that is not actually there or is different from how it appears in reality

• a type of hologram

• a type of virtual reality experience

• a type of magic trick involving mirrors

Tags

NGSS.MS-LS1-8

A lens is a transparent piece of glass or plastic with at least one ______ surface.

• flat
• square
• curved
• rough

Which one is an example of a CONVEX lens?

• 
• 
• 

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NGSS.MS-PS4-2

A convex lens makes things look ​ (a)   because the light bends ​ (b)   as they leave the lens.

• bigger
• inwards
• smaller
• outwards

What is the triangular glass object called?

• prism
• sphere
• cube
• pyramid

Tags

NGSS.MS-PS4-2

How does a triangular prism affect light passing through it?

• It can emit light in random directions.
• It can refract light and split into different colours.

• It can reflect light without any change.
• It can absorb light completely.

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NGSS.MS-PS4-2

What is the correct order of the VISIBLE SPECTRUM?

• Yellow, Red, Green, Blue, Orange, Indigo, Violet
• Violet, Indigo, Blue, Green, Yellow, Orange, Red
• Red, Orange, Yellow, Green, Blue, Indigo, Violet
• Red, Yellow, Blue, Green, Orange, Indigo, Violet

How is a rainbow made?

• Clouds reflect water droplets in the atmosphere.

• Rainbows are formed by unicorns.

• Sunlight is refracted, reflected and spread in water droplets in the atmosphere.

• Rainbows are created by magic spells.

Tags

NGSS.MS-PS4-2

What type of lens are used in binoculars?

• Convex lenses
• Concave lenses
• Plano-convex lenses
• Diverging lenses