تذكري أن الاحتكاك :
الاحتكاك : هي قوة تحاول إيقاف الأشياء المنزلقة عند تحرك سطحين متلاصقين باتجاهين متعاكسين
يمكن أن يكون الاحتكاك مفيدا ويمكن أن يكون مشكلة
حددي ما اذا كان الاحتكاك مفيد أم يعد مشكلة في الصور التالية
يعد مشكلة
مفيد
1
2
بإعتقادك ايهما أسهل تحريك الصندوق على السطح (أ) أم على السطح (ب) ؟ وما السبب؟
أ
ب
استقصاء الاحتكاك
|
|
الاهداف
أستطيع أن أصف الفرق في الاحتكاك بين جسم ما وأسطح مختلفة.
أستطيع أن أقوم بعمل قياسات دقيقة لاختبار الأفكار والتنبؤات
أستطيع أن أخطط وأرسم جدول منظم وتمثيل بياني بالأعمدة يتسم بالدقة
نشاط 4-7
الهدف : كيف تؤثر طبيعة السطح في الاحتكاك
كيف تقلل محامل الكرات في الالات من الاحتكاك؟
مما سبق تعلمنا أن :
1- قوة الاحتكاك بين سطحين خشنين أكبر من قوة الاحتكاك بين سطحين أملسين
2- قوة الاحتكاك على الأسطح الكبيرة أكبر من قوة الاحتكاك على الاسطح الصغير
التقويم الختامي
الواجب حل ورقة العمل 4-7 من كتاب النشاط
Introduction
You can give a brief description of the topic you want to talk about here. For example, if you want to talk about Mercury, you can say that it’s the smallest planet in the entire Solar System
Types of energy
Kinetic energy
Potential energy
Venus has a beautiful name and is the second planet from the Sun. It’s hot and has a poisonous atmosphere
Mercury is the closest planet to the Sun and the smallest one in the Solar System—it’s only a bit larger than the Moon
Infographic kinetic energy
Energy in
Potential energy
Energy out
Kinetic energy
Kinetic energy
Rotational
Transnational
Types of kinetic energy
Vibrational
Mercury is the closest planet to the Sun and the smallest of them all
Venus has a beautiful name and is the second planet from the Sun
Despite being red, Mars is actually a cold place. It’s full of iron oxide dust
Where does that energy come from?
Mechanical energy
Electrical energy
Thermal energy
Radiant energy
Despite being red, Mars is a cold place
Venus is the second planet from the Sun
Jupiter is the biggest planet of them all
Saturn is a gas giant and has several rings
Thermal and sound energy
Thermal
Sound
Saturn is the second-largest planet in the Solar System
Earth is the beautiful planet where we all live
Mars
Facts about kinetic energy
Mercury
Venus
Neptune
Jupiter
Saturn
Mars is actually a cold place. It's full of iron oxide dust
It’s the fourth-largest object by diameter in the Solar System
Mercury is the closest planet to the Sun and the smallest one
Venus has a beautiful name and very high temperatures
Jupiter is a gas giant and the biggest planet in the Solar System
It was named after the Roman god of wealth & agriculture
Awesome words
—Someone Famous
“This is a quote. Words full of wisdom that someone important said and can make the reader get inspired.”
A picture always reinforces
the concept
Images reveal large amounts of data, so remember: use an image instead of a long text. Your audience will appreciate it
150,000
Big numbers catch your audience’s attention
Potential energy vs. Kinetic energy
Potential energy
Kinetic energy
Mercury is the closest planet to the Sun and the smallest one in the Solar System—it’s only a bit larger than the Moon
Venus has a beautiful name and is the second planet from the Sun. It’s hot and has a poisonous atmosphere
KE
PE
9h 55m 23s
333,000
386,000 km
Is Jupiter's rotation period
Earths is the Sun’s mass
the distance between Earth and the Moon
Examples of objects with KE
Ball
Meteors
Walking
Airplane
Falling
Roller Coaster
Neptune is far away from us
Saturn is composed of hydrogen and helium
Mars is actually a very cold place
Venus is the second planet from the Sun
Jupiter is the biggest planet of them all
Mercury is the closest planet to the Sun
50%
Mercury
Venus
Mars
30%
20%
Let’s use some percentages
Mercury is the closest planet to the Sun
Venus is the second planet from the Sun
Mars is actually a very cold place
Equation for calculating kinetic energy
KE = 1/2 mv2
m = mass and v = velocity
Kinetic energy infographic
Potential energy
Kinetic energy
You can use this graph
Follow the link in the graph to modify its data and then paste the new one here. For more info, click here
Jupiter
Jupiter is the biggest planet of them all
Saturn
It’s composed of hydrogen and helium
This is another graph
Follow the link in the graph to modify its data and then paste the new one here. For more info, click here
Class A
Jupiter is the biggest planet of them all
Class B
Mercury is the closest planet to the Sun
Class C
Saturn is composed of hydrogen and helium
Forms of kinetic energy
M | Mechanical | Mercury is the smallest planet |
E | Electrical | Venus is the second planet from the Sun |
L | Light | Mars is actually a very cold place |
T | Thermal | Jupiter is the biggest planet of them all |
S | Sound | Saturn is the only planet with rings |
Easy way to remember the forms of energy
You can use this diagram too
Electrical
Nuclear
Light (Radiant)
Chemical
Heat (thermal)
Gravitational
Energy types
Potential
Kinetic
Types of KE
Sound
Mechanical
Electrical
Saturn is composed of hydrogen and helium
Neptune is the fourth-largest planet
Earth is the only planet known to harbor life
This is a map
Venus
Venus has very high temperatures
Jupiter is the biggest planet
Saturn is a gas giant with rings
Jupiter
Saturn
Awesome words
Example kinetic and potential energy
Venus has a beautiful name and is the second planet from the Sun. It’s terribly hot, even hotter than Mercury, and its atmosphere is extremely poisonous. It’s the second-brightest natural object in the night sky after the Moon
h
v
A timeline always works fine
Jupiter
Jupiter is a gas giant and the biggest planet
Mars
Mars is actually a cold place. It’s full of iron
Mercury
Mercury is the closest planet to the Sun
Saturn
Saturn is composed of hydrogen and helium
1
2
3
4
20%
Mass
Velocity
80%
Some percentages
Jupiter is the biggest planet of them all
Despite being red, Mars is a cold place
Quiz: which one is kinetic energy?
Nuclear
Chemical
Gravitational
Electrical
Jupiter is a gas giant and the biggest planet
Mars is actually a cold place. It’s full of iron
Mercury is the closest planet to the Sun
Saturn is composed of hydrogen and helium
D
C
B
A
Correct!
Saturn is composed of hydrogen and helium
D
Let’s do an exercise
Circle T if the statement is TRUE or F if it is FALSE. You may use a dictionary to help you
a) Things in motion have kinetic energy
b) Light is a form of matter
c) Electrical energy travels through wires
d) Energy cannot be moved from one place to another
T F
T F
T F
T F
Another exercise
Different forms of energy in everyday life
Form of Energy | Example | Icon |
Answer here | Light Bulb, Sun | |
Answer here | Food Battery | |
Answer here | Music | |
Answer here | Nuclear Power | |
These are some references
Mercury is the closest planet to the Sun and the smallest in the Solar System
About the topics
03
You can enter a subtitle here if you need it
—Someone Famous
“This is a quote, words full of wisdom that someone important said and can make the reader get inspired.”
2,369
Big numbers catch your audience’s attention
Types of Kinetic energy
Radiant
Sound
Thermal
Electrical
Venus has a beautiful name and high temperatures
Despite being red, Mars is actually a cold place
Earth is the only planet known to harbor life
Jupiter is the biggest planet in the Solar System
Some questions
What is KE?
What is the formula?
How to measure it?
Despite being red, Mars is actually a cold place
Jupiter is the biggest planet in the Solar System
Venus has a beautiful name, but also high temperatures
Activities
04
You can enter a subtitle here if you need it
Activity 1: Bottle racer
Materials
Steps
Assembly
Jupiter is a gas giant and the biggest planet
1
Bend
Mercury is the smallest planet of them all
2
Pull
Venus has extremely high temperatures
3
Screw
Earth is the only planet known to harbor life
4
Questions: Activity 1
What’s going on?
The surface affects?
Write your answer here
Write your answer here
Q1
Q2
Activity 2: Select the correct option
Click on the white box
Which object has Kinetic energy?
Plant
Meteor
Chair
Oops, wrong!
Plant
Meteor
Chair
Try again!
Which object has Kinetic energy?
Correct!
Plant
Meteors
Chair
Which object has Kinetic energy?
Activity 3: Question quiz
Kinetic energy is the energy an object has due to its…
1
Position
Weight
Mass
Gravity
Motion
Oops!
Kinetic energy is the energy an object has due to its…
1
Position
Weight
Mass
Gravity
Motion
Try again!
Correct!
Kinetic energy is the energy an object has due to its…
1
Position
Weight
Mass
Gravity
Motion
Activity 3: Question quiz
KE can be calculated from what measurements?
2
Mass and power
Velocity and mass
Acceleration and weight
Speed and momentum
Acceleration and velocity
Oops!
Kinetic energy is the energy an object has due to its…
2
Mass and power
Velocity and mass
Acceleration and weight
Speed and momentum
Acceleration and velocity
Try again!
Correct!
Kinetic energy is the energy an object has due to its…
2
Mass and power
Velocity and mass
Acceleration and weight
Speed and momentum
Acceleration and velocity
Our teachers
John Doe
Sam Jane
Becca Bones
You can speak a bit about this person here
You can speak a bit about this person here
You can speak a bit about this person here
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Mobile web
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