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1. Series and Parallel Circuits
Learn how to design and construct series and parallel circuits, and understand the differences between them.
วงจรไฟฟ้าแบบอนุกรมและแบบขนาน
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2. Series Circuits
Learn how to design and construct series circuits.
วงจรไฟฟ้าแบบอนุกรม |
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3. Parallel Circuits
Learn how to design and construct parallel circuits.
วงจรไฟฟ้าแบบขนาน
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4. Circuit Diagrams
Learn how to draw simple circuits and the symbols used to represent them.
แผนภาพวงจร
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5. Electric Current
Learn that current is the flow of electricity around a circuit and that the greater the resistance of the circuit, the less current flows.
กระแสไฟฟ้า |
6. Measuring Current
Learn how to measure current with an ammeter.
การวัดกระแสไฟฟ้า |
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7. Measuring Voltage
Learn how to measure voltage with a voltmeter.
การวัดความต่างศักย์ไฟฟ้า |
8. Fuses and Circuit Breakers
Understand how a fuse protects a circuit and learn some uses of resettable circuit breakers.
ฟิวส์และตัวตัดวงจร
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9. Magnetic Fields
Understand that a magnetic field is a region of space
where magnetic materials experience forces and learn
that magnetic field line patterns show the relative
strength of magnetic fields.
สนามแม่เหล็ก |
10. Understanding Magnets
Learn that magnets attract magnetic materials and that like poles repel and unlike poles attract.
ความเข้าใจเกี่ยวกับแม่เหล็ก
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11. Magnetism and Electric Current
Learn that wires carrying an electric current produce a magnetic field and that a current in a coil produces a magnetic field pattern similar to a bar magnet.
กระแสไฟฟ้าและความเป็นแม่เหล็ก |
12. Plotting a Magnetic Field
Learn how to plot the magnetic field around a bar magnet using a plotting compass.
การวาดสนามแม่เหล็ก
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13. Measuring Speed
Learn how to work out the speed of a moving object and understand how to make calculations using the relationship between speed, distance and time.
การวัดอัตราเร็ว |
14. Distance-time Graphs
Learn how to plot a distance-time graph and understand
what it shows.
กราฟระยะทาง - เวลา |
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15. Forces
Learn what forces are and what they can do.
แรง |
16. Mass, Weight & Gravity
Learn that the weight of an object on Earth is the result of the gravitational attraction between its mass and that of the Earth, and know that weight is a force so is measured in newtons.
มวล, น้ำหนัก และความโน้มถ่วง |
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17. Unbalanced Forces
Learn that unbalanced forces change the speed or direction of movement of objects and that balanced forces produce no change in the movement of an object.
การไม่สมดุลของแรง |
18. Balanced Forces
Learn that balanced forces produce no change in the movement of an object.
สมดุลของแรง
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19. Stretching Materials
Learn that extension is proportional to load, within
the elastic limit of a material.
การยืดวัตถุ |
20. Friction
Find out how frictional forces, including air resistance, can affect the motion of an object.
แรงเสียดทาน |
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21. Useful Friction
Learn how frictional forces can be useful.
ประโยชน์ของแรงเสียดทาน |
22. Stopping Distances
Find out how to calculate the total stopping distance of a car.
ระยะหยุด |
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23. Factors Affecting Braking Distance
Understand that the braking distance of a car depends on its speed and other factors which affect the frictional forces needed to stop the car.
ปัจจัยที่มีผลต่อระยะเบรก |
24. Factors Affecting Thinking Distance
Understand that the stopping distance of a car depends on the alertness of the driver as well as its speed and frictional forces.
ปัจจัยที่มีผลต่อระยะคิด
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25. What Forces Do
Learn what forces can do and how to measure them.
แรงทำอะไรได้บ้าง |
26. Pivots and Levers
Learn that forces can cause objects to turn about a pivot and that the turning effect of a lever depends on the force and its distance from the pivot.
จุดหมุนและคาน
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27. Calculating Moments
Understand the principle of moments and its application to situations involving one pivot.
การคำนวณโมเมนต์ |
28. Clockwise and Anticlockwise Moments
Learn that a moment is a turning force, which can be clockwise or anticlockwise.
โมเมนต์ตามเข็มนาฬิกาและโมเมนต์ทวนเข็มนาฬิกา |
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29. Refraction
Learn about refraction of light and know some examples.
การหักเห
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