web view · 2010-10-21draw a line to match each word with its picture: ... - magnets have...

Grade 3 Unit P.1 – Forces, Magnets and Springs

Forces, Magnets

and Springs

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الوحدة معايير10.1 Know that the effect of force depend on its

direction as well as its size.

10.2 Demonstrate that there are forces of attraction and repulsion between magnets.

10.3 Know that some metal objects are attracted to a magnet but others, such as aluminum cans, are not.

10.4 Know that magnets forces can act through non-metallic materials.

10.5 Give examples of some of the ways that magnets are used in everyday life.

10.6 Show that a stretch or compressed spring can exert a force.

1.1 Devise a fair test or comparison and recognize when conclusions are justified.

1.2 Make, test prediction and draw conclusions from observations and data.

3.1 Handle simple equipment correctly, safely and without damage to carry out simple experiment.

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Force: is a push or a pull. It can change the motion of objects .

او ايقافه او تحريكه الى يؤدي للجسم سحب ام دفع اي هوشكله تغيير

Push: moves something away from you. عنك بعيدا االشياء تحريك هو الدفع

Pull: moves something closer to you.منك قريبا االشياء تحريك هو السحب

Magnetism: is a force of attraction or repulsion that acts between certain objects called magnets.

المغنطيس بين التنافر و التجاذب قوة هي المغنطةMagnetic: materials that attracted to magnets are called magnetic like: iron, steel, and some rare metal.

تكون و المغنطيس الى تجذب التي هي الممغنطة الموادالستيل او الحديد من مصنوعةNon-magnetic: materials include silver, gold, copper, aluminum and lead.

المغنطيس يجذبها ال التي هي و ممغنطة الغير الموادPole: is the place on a magnet that has the strongest push or pull.

المغنطسيس في نقطة اقوى هي المغنطيس قطبللجذبAttract: means to pull toward.

السحب قوة هي الجذي قوةRepel: means to push away.

الدفع قوة هي و التنافر قوة

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http://schools-demo.clipart.com/search/close-up?oid=3778417&q=girl%20push&s=1&a=c&cid=&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=954519&q=girl%20pull&s=1&a=c&cid=&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3923986&q=attracted%20magnet&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1


Questions you may have about force: What is a force? القوة هي ما What are kinds of forces? ما

انواعها How do you measure force?

قياسها يتم كيفForce is defined as a push or a pull that makes something move. The more force you use, the more the object moves.كلما و االجسام تحريك على يعمل سحب او دفع اي هو القوة

الحركة زادت القوة زادت

pull push

السحب الدفع

* You can use force to move an object up, down, right, or left. You can make it move in a straight line, a curve, or even a zigzag.

بأتجاهات االشياء تحرك ان ممكنمعين بتوجيه و معينة بقوة مختلفة

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http://schools-demo.clipart.com/search/close-up?oid=3935388&q=push&s=91&a=c&cid=&fic=0&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3950254&q=pull&s=31&a=c&cid=&fic=0

Don't forget that you can't see forces, but you can see the effect of a force – something speed up, slowing down, changing direction, or changing shape.

تزيدد ان ممكن القوةتقلل او الجسم سرعة

ان ممكن و سرعته منمن تغير او توقفهحجم حسب شكله

و اتجاهها او القوة


بخطوط تحركها ان ممكن وبخطوط او منحنية او مستقيمة

- زكزاك – متعرجةForces can make things:

Forces are measured in newtons (N) اداةلقياس وحدة هناك و القوة لقياس

النيوتن هي و القوةForces are often measured using a spring-balance called a force meter (or Newton meter).

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1

4

2

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Force meter

http://schools-demo.clipart.com/search/close-up?oid=3761893&q=rocket&s=31&a=c&cid=&fic=0&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3782099&q=car%20with%20balloon&s=1&a=c&cid=&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=2798038&q=long%20gum&s=31&a=c&cid=&fic=0&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3776918&q=road&s=31&a=c&cid=&fic=0&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=806957&q=girl%20eats%20gum&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3825157&q=blue%20car&s=31&a=c&cid=&fic=0&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3988243&q=spring&s=121&a=c&cid=&fic=0


ForceAnswer these questions:

التالية االسئلة عن اجب

1 .What is force ?القوة ماهي

Force is a ---------- or a ----------.

2 .What are kinds of forces? القوة انواع ماهي A________________. B________________.

3. What are the four things that forces can cause objects to do? القوة تأثيرات هي ما

________________ __________ ______

________________ ________________

4 .What are the units of forces ?القوة قياس وحدة هيب ما

________________.

Put ( ) or ( X ) :خطأ او صح ضع

القوة. 1 نرى ان ) (. We can see forcesممكن

القوة. 2 تأثير نرى ان We can see the effect ofممكنforces .) (

Draw a line to match each word with its picture :

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الصحيحة للكلمة الصورة وصل

1 .push

2 .pull

Tell how each thing is being moved.Write push or pull. القوة نوع عين

المناسبة للصورة الصحيحة

______ ____________

Sort the pushes and pulls (use arrows!):

القوة نوع حسب الصور رتب

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Pushes دفع

http://schools-demo.clipart.com/search/close-up?oid=955144&q=pull&s=91&a=c&cid=&fic=0



http://schools-demo.clipart.com/search/close-up?oid=3017627&q=pull%20a%20flower&s=1&a=c&cid=&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3767825&q=kite&s=1&a=c&cid=&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1


Force

1 .Circle the toys you push. Make an X on the toys you push .و تدفع التي االلعاب على دائرة ضع

تسحب التي االلعاب على خطأ

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Pull سحب

Homework

http://schools-demo.clipart.com/search/close-up?oid=3778417&q=girl%20push&s=1&a=c&cid=&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=1001515&q=push&s=1&a=c&cid=&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=2798366&q=push&s=1&a=c&cid=&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3730208&q=pull&s=31&a=c&cid=&fic=0&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=861163&q=pull&s=31&a=c&cid=&fic=0&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3934014&q=train%20toy&s=91&a=c&cid=&fic=0&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3838941&q=ball&s=31&a=c&cid=&fic=0&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3767859&q=kite&s=1&a=c&cid=&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1


2. Mark an X on objects that move easily with a gentle push.

بسهولة تتحرك التي االجسام على خطأ ضع

Both these toy cars traveled across the floor.اجب ثم جيدا التجربة هذه في معن

التالية االسئلة عن

0 cm 10 cm 20 cm 30 cm 40 cm 50 cm

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Car A Car B

http://schools-demo.clipart.com/search/close-up?oid=3866675&q=grass&s=1&a=c&cid=&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3961589&q=horse%20toy&s=31&a=c&cid=&fic=0&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3767869&q=car%20toy&s=1&a=c&cid=&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3981187&q=bread&s=1&a=c&cid=&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3838941&q=ball&s=31&a=c&cid=&fic=0&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3878968&q=box&s=1&a=c&cid=&k_mode=all&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3745182&q=blue%20car&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3997106&q=purple%20car&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1


1. How far did Car A travel? ------------------------ مااي السيارة قطعتها التي المسافة

2. How far did Car B travel? ------------------------بي السيارة قطعتها التي المسافة ما

3. Which car traveled farther? ----------------------اسرع ايهما

4. Which car was given a soft push? ------------------خفيفة دفعة تلقت ايهما

5. Which car was given a hard push? ------------------كبيرة دفعة تلقت ايهما

6. Tell how you know which car was pushed harder?االخيرة اجابتك فسر

------------------------------------------------

------------------------------------------------

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Look at these pictures & decide 1. Which one wi l l move more?

FكFرFحFتFتFس FاFمFهFيFا

2. Choose the biggest force: FاFمFهFيFا FةFوFق FرFبFكFا

3. What do the arrows show on the force diagram? FزFمFرFي FاFذFاFم FىFلFاFمFهFسFلFا

4.What is a force FةFوFقFلFا FيFهFاFم

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10 N 50 N


1. How can you fix this pin like

this picture ? Which kind of force you will use? تثبت كيف

قوة بأي الدبوس

2. How can this girl move this chair? How many ways? What are they?

القوة انواع عدد الكرسي تحرك كيف

الصورة في القوة اتجاه لتحدد سهما ارسمالتالية

3. Draw the arrow to show the direction of force and name it:

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Name these forces in the boxes below the pictures as: التالية الصور من كل تحت القوة نوع اكتبPush force or pull force

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There are different kinds and shapes of spring

له الزنبرك او السبرنكحسب الشد و الكبس هي و معينة قوىحسب و القوة عليه تسلط الذي االتجاه

السبرنك نوع

S p r i n g s 14

Class Work




http://schools-demo.clipart.com/search/close-up?oid=3134822&q=mattress&s=31&a=c&cid=&fic=0&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3843429&q=spring&s=1&a=c


http://schools-demo.clipart.com/search/close-up?oid=3861322&q=stapler&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1


http://schools-demo.clipart.com/search/close-up?oid=3750192&q=spring%20in%20sofa&s=31&a=c&cid=&fic=0&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1



Draw a circle around objects which have springs?أو السبرنك فيها التي االجسام حول دائرة ارسم

الحديدي الزنبرك

Activity:Bring a spring from home…any type!

(Teacher will lead)Collect the different springs - and distribute and tell them they have to answer the question ‘Which spring is the stretchiest?’ Ask children the following questions to make them think about how they would test the springs:• What will you do?• What equipment will you need?• How will you keep your test fair?• How will you make sure your test is safe?• What will you measure?• How will you record your results?• What will your table look like?• Which spring do you predict will be the stretchiest? Why do you think this?

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http://schools-demo.clipart.com/search/close-up?oid=3958489&q=retactable%20pens&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1



http://schools-demo.clipart.com/search/close-up?oid=3956320&q=red%20flower&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=1004543&q=book&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3134847&q=mattress&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1


Ma g n e t s

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M a g n e t s What is a magnet? المغنطيس هو ماWhat can a magnet attract? يجذب ماذاالمغنطيس

magnetism – force of attraction or repulsion

تنافر او جذب قوة هي المغنطيسية not all objects are affected by the force

of magnetism ex. wood, glass, paper, plastic

غيرها و الخشب مثل بالمغنطيس المواد جميع تتأثر ال common metals affected by magnetism : iron, الحديد هو للمغنطيس تنجذب التي المواد من

poles – two ends of a magnet every magnet has two poles قطبان هناك

للمغنطيس north (N) poleالشمالي south (S) poleالجنوبي

even if you break a magnet in half, each half will have a north pole and a south pole

The ends of a magnet are where the magnetic effect is the strongest. لو حتىاكثر او اثنان الى المغنطيس انكسركل و للجذب بقوتها قطعة كل ستحتفظ

القطبان نفس لها سيصبح قطعةThese are called “poles.” Each magnet has 2 poles – 1 north, 1 south.

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http://schools-demo.clipart.com/search/close-up?oid=847477&q=magnet&s=1&a=c&cid=&fic=


Magnets can push or pull certain metal objects. A pole is the place on a magnet that has the strongest push or pull.االخرى الحديدية االجسام يحرك ان يستطيع معدني جسم هو

الدفع او بالسحب

Magnets are pieces of metal that have the power to attract other pieces of metal.المعدنية لالجسام جاذبية قوة لديها المعدن من قطعة هواالخرى

-Magnets attract objects made of iron or steel.الستيل او الحديد يجذب المغنطيس

-Magnets have a 'N' and 'S' pole.جنوبي و شمالي قطبان المغنطيس لدى

-Like poles repel each other.تتنافر المتشابهة االقطاب

-Different poles attract each other.تتجاذب المختلفة االقطاب

-There are different shapes of magnets. I have a horseshoe, ring, and a bar magnet.

المغنطيسات من متنوعة اشكال هناك

Bar horseshoe circular

- Compass - an instrument that is used to find directions .

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N S

S

S S

N

S N

http://schools-demo.clipart.com/search/close-up?oid=3866574&q=magnet&s=1&a=c&cid=&fic=


This instrument has a needle that points north.

من االرعة االتجاهات الى تشير اداة هي البوصلةالى دائما تشير دقيقة مغنطيسية ابرة خالل

الشمال

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http://schools-demo.clipart.com/search/close-up?oid=750601&q=compass&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1


المغنطيس يجذبها التي االجسام على دائرة ضعCircle the items the magnets will

attract.

Sci

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Class Work

The magnetic force of a magnet can pass things through materials like... water,

glass, aluminum, and paper.مثل االجسام بعض تخترق ان ممكن المغنطيس قوة

الورق و الرقيق االلومنيوم و الخفيف الزجاج و الماء

http://schools-demo.clipart.com/search/close-up?oid=2801330&q=magnets%20repel&s=1&a=a&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3928218&q=dresser&s=31&a=c&cid=&fic=0&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=996479&q=pencil&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=752312&q=pins&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=997231&q=clips&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3752911&q=coin&s=31&a=c&cid=&fic=0&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1


Complete these sentences :التالية العبارات اكمل

1 .Magnets are pieces of ------ that attract things.من ........................... قطعة هو المغنطيس

2 .Magnets can ---------- things made of iron.ان ........................................................... يستطيع المغنطيس

الحديد من المصنوعة

3 .People use different kind of ----------- in different ways.من ................................. مختلفة انواع البشر يستعمل

4 -Every magnet has a ------ and a ------ pole.ز .................................... ........................................... و له مغنطيس كل

5 -Sailor use a ----------- to find out direction .في ................................................ االتجاهات لمعرفة يستعين البحار

البحر

Record Dataعلى خطأ و للمغنطيس تنجذب التي االجسام على دائرة ضع

تنجذب ال التي االجسام Circle the things that are pulled by magnet.

Make an x on the things that are not pulled by a magnet.

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http://schools-demo.clipart.com/search/close-up?oid=3754670&q=yarn&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=955016&q=scissors&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=2709678&q=wax%20paper&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

S

S


Match each word to the picture it tells about.الصورة و القوة بين صل

Attract

Repel

Write two sentences about magnets:المغنطيس عن عبارتان اكتب

1.__________________________________ .

2..__________________________________

تلون ان نريد لذا الحديد يجذب المغنطيس ان بمارسمه بعد المغنطيس في نقطة اقوى

The magnet attracts iron bits. Color the parts of the magnet that have the strongest force:

للمغنطيس تجذب التي االجسام على دائرة ضعCircle things that attract to a magnet:

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S N

Gold

http://schools-demo.clipart.com/search/close-up?oid=3933638&q=candle&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3141094&q=steel%20nail&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1



Put tick (√) next the pictures that shows

:attractionتجاذب

Put (X) next the pictures that show repulsion :التنافر على خطأ عالمة ضع

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Steel clock

Iron sharpener

Homework


Put (T) or (F):قوية المغنطيسات كل

1 .All magnets are strong) ( .للمغنطيس المعادن جميع التنجذب

2 .Not all metals are attracted to magnets) ( .اقطاب اربعة للمغنطيس

3 .Magnets have four poles) ( .

و اخر من المغنطيسات الحد الجنوبي القطب تقرب عندما راقبيحصل ؟ماذا ترى ماذا ناعم و املس سصح على هماObserve and describe then write what happens when you actually bring the south pole of one bar magnet near the other magnet on a desk or a smooth surface.

__________________________________________________________________________________

Pre-Test1. A magnet will pick up a يلتقط ._____________ المغنطيس

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http://schools-demo.clipart.com/search/close-up?oid=3861915&q=magnet&s=1&a=p&cid=&k_mode=any&k_exc=&q_color=1&q_bw=1&date=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=2829839&q=pull%20magnet&s=1&a=p&cid=&k_mode=any&k_exc=&q_color=1&q_bw=1&date=&isadv=1


A. paper clipB. piece of woodC. piece of chalkD. shoe2. Magnets should not be put near _____________.

ال حنب المغنطيس وضع تجنبA. desksB. booksC. computersD. pencils3. The two ends of a bar magnet are called the ______. ال ب يسميان المغنطيس طرفا

A. rodsB. polesC. backsD. ends

4. Like poles __________. المتشابهان ي القطبان

A. attractB. repelC. do nothingD. stick together

5. You can find a magnet in ___________. تجدقي المغنطيس

A. a rocking chairB. a pencilC. a pictureD. an electric can opener

Post-Test25


1. The magnet that picked up the most paper clips (the strongest)was ______________.

الورق دبابيس من عددد اكبر يجذب الذي المغنطيس نوع ماA. the bar magnetB. the horseshoe magnetC. the circle magnetD. the piece of wood2. The strongest part in a magnet is _____________.

المغنطيس في نقطة اقوىA. in the middleB. all overC. at the polesD. on the front

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What Do Magnets Attract? المغنطيس يجذب ماذا

Things to try

Do attractيجذب

Do not attract ال يجذب

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http://schools-demo.clipart.com/search/close-up?oid=3768045&q=comb&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1


Choose the correct answer:1 .Magnets are made of.---------------

-stones. -steel or iron.

-any metal. -plastic.

2 .Magnets have.------------------- -one pole. -two pole.

-three pole. -four pole.

3 .A magnet doesn't attract.---------------- -iron.

-steel. -nails.

-diamonds.

و شمالي قطبان لها المغنطيسات جميعمن مصنوعة المغنطيسات جميع و جنوبي

بعض ليجذب معينة بطريقة المعالج الحديديستعمل و الستيل و الحديد منها و المعادن

عدة في و اليومية حياتنا في المغنطيسفي المستعملة المغنطيسات منها و مجاالت

المستعملة المغنطيسات و الثالجة اطارباباالجهزة داخل في و الثالجة باب على

الكهربائية

منن المغنطيسات نقرب ال ان ننبه ان نودالدقيقة االلكترونية االجهزة و الكومبيوترات

التلف و العطل له يسبب النه28


The discovery of magnets was very important as they are used to make electric motors and generators. Things that would disappear if we had no electricity are telephones, lights, electric heat, computers, and televisions.

Some uses of electromagnets: trains, car , scrap metal sorters, telephones, computers, doorbells, tape recorders etc.

29

Why do some parts of a magnet push and pull harder

than other parts ?تسحب لماذاغيرها من اقوى االجزاء بعض

______________________________________________________________._________________________

Why can a magnet pick up a nail, but not a soda can or bottle ?لماذا

علبة يجذب ال و المسمار المغنطيس يجذبالببسي______________________________________________________________________________._________

Why can a magnet pull through some things and

not others ?قوة لماذاو المواد بعض تخترق المغنطيس

كلها ليس______________________________________________________________._________________________


Magnets around us

Look at the items below and circle them if they have magnets in themمغنطيس فيها التي االشياء حول دائرة ضع

Name two other items in your house that have magnets.

مغنطيس لهما شيئان اذكر

____________________ , ___________________المغنطيس قوة تخترقها التي االجسام حول دائرة ضع

Circle the things that a magnet can pull through :

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http://schools-demo.clipart.com/search/close-up?oid=3874025&q=fan&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3861379&q=paper&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=751231&q=fork&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=2796805&q=telephone&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=2807711&q=train%20toy&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3987531&q=mug%20glass&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3767862&q=pillow&s=1&a=c&cid=&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1

http://schools-demo.clipart.com/search/close-up?oid=3879553&q=foil&s=31&a=c&cid=&fic=0&k_mode=any&k_exc=&q_gif=1&q_color=1&q_bw=1&q_eps=1&q_wmf=1&q_psd=1&q_png=1&date=&pubid=&isadv=1


Web sites for kids: مهمة مواقع

http://www.bbc.co.uk/schools/revisewise/science/physical/ http

www.bbc.co.uk/schools/scienceclips/ages/5_6/pushes_pulls.shtml

http://www.bbc.co.uk/schools/revisewise/science/physical/12_act.shtml

31




http://www.bbc.co.uk/schools/scienceclips/ages/5_6/pushes_pulls.shtml

http://www.bbc.co.uk/schools/scienceclips/ages/5_6/pushes_pulls.shtml

http://www.bbc.co.uk/schools/revisewise/science/physical/http

http://www.bbc.co.uk/schools/revisewise/science/physical/http

web view · 2010-10-21draw a line to match each word with its picture: ... - magnets have...

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