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44 Cards in this Set
- Front
- Back
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شی |
Object |
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باز تابش |
Reflect |
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نور |
Light |
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بازگشت |
Bounce off |
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هموار، صیقلی |
Smooth |
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مستقیم، راست |
straight |
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برخورد کردن |
Hit |
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صاف، تخت |
Flat |
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سطح |
Surface |
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جهت |
Direction |
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بامزه، خندهدار |
Funny |
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سد کردن، مانع شدن |
Block |
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رسیدن |
Reach |
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سایه |
Shadow |
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خم کردن |
Bend |
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انکسار |
Refraction |
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عدسی |
Lens |
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دقیقا |
Exactly |
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ثبت کردن |
Record |
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تخمین زدن، حدس زدن |
Estimate |
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الگو |
Pattern |
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گچ |
Chalk |
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نمودار |
Graph |
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طول |
length |
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بستگی دارد به |
Depends on |
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علامت گزاری |
Mark |
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What is light |
Light is a type of energy |
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How does light travel? |
Light travels in a straight lines. |
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How do we see objects |
When light hits an object, some of the light reflects, or bonus off, the object into our eyes |
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How does light reflect from an smooth or flat object? |
Light bounces in one direction when it reflects off a smooth or flight objects. |
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How do you use light |
You would like to see |
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بلند |
Long |
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Why not flat mirrors look funny? |
When light hits the surface of a not flat mirror it bounces off many directions. This makes your reflection look funny. |
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How does a not smooth object reflect light? |
It reflects light in many directions. |
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How can an object make shadow? |
An object makes a shadow when the object blocks light. |
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How can you make a shadow? |
We can make a shadow on the wall by blocking light with our hand. |
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What is refraction? |
Some objects can bend light. This is called refraction. |
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Can you name some objects which can make refraction |
Glass and water can bend the light and make refraction. |
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Does all the objects make Shadow |
No they don't. Some objects do not block light. |
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bent |
خمیده |
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What is shadow? |
Shadow is a dark areas that light does not reach. |
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What can be measured with shadows? |
Shadows can tell us about the time of day. |
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What does a length of a shadow depends on |
Length of the Shadow depends on where the sun is in the sky. |
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How does a lens show us object bigger? |
Light bends when it travels through a lens. Bent light makes things bigger. |
