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Unit 6_ Lights

Authored by Thanh Tăng

Science

6th - 8th Grade

Used 2+ times

Unit 6_ Lights
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24 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

What happen when a light ray reach a plane surface

reflection

refraction

dispersion

spectrum

formation of asteroid

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Reflection is when....

a light ray reaches a plane surface and bounces off

a light ray reaches any surface and bounces off

a light ray reaches a plane surface and changes direction

a light ray reaches any surface and changes direction

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Refraction is when....

a light ray reaches a plane surface and bounces off

a light ray reaches any surface and bounces off

a light ray reaches a plane surface and changes direction

a light ray reaches any surface and changes direction

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What causes refraction of light?

the change of speed of light

the change of colour of light

the change of direction of light

all of the answers are incorrect

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is medium?

The material light passes through is medium.

The material that light can't passes through

The material that prevent light from passing through

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Compare the speed of light in water and the speed of light in air

the speed of light in water < the speed of light in air

the speed of light in water > the speed of light in air

the speed of light in water = the speed of light in air

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Compare the speed of light in water and the speed of light in glass

the speed of light in glass < the speed of light in water

the speed of light in glass > the speed of light in water

the speed of light in glass = the speed of light in water

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