Simple Electricity
Flashcard
•
Science
•
9th - 12th Grade
•
Easy
Brenda Wildes
Used 1+ times
FREE Resource
Student preview

39 questions
Show all answers
1.
FLASHCARD QUESTION
Front
เส้นทางสำหรับกระแสไฟฟ้าเรียกว่า
Back
วงจร
Answer explanation
A route through which electrical current can flow is called a circuit. Voltage refers to the potential difference, watts measure power, and electricity is the general term for electric charge. Thus, the correct answer is circuit.
2.
FLASHCARD QUESTION
Front
ตัวนำอนุญาต
Back
การเคลื่อนที่ของทั้งอิเล็กตรอนและความร้อน
Answer explanation
Conductors allow the movement of both electrons and heat. This means they can conduct electricity (via electron movement) and transfer thermal energy, making the first answer choice correct.
3.
FLASHCARD QUESTION
Front
วงจรที่สมบูรณ์คืออะไร?
Back
เมื่อเส้นทางไม่ขาดจากลบไปบวก
Answer explanation
A complete circuit allows electrons to flow continuously from the negative terminal to the positive terminal. The correct choice highlights that the path for electrons must remain unbroken for the circuit to function.
4.
FLASHCARD QUESTION
Front
เส้นทางที่อิเล็กตรอนเดินตามคืออะไร?
Back
วงจรปิด
Answer explanation
The unbroken path that electrons follow is called a closed circuit. In a closed circuit, electricity can flow continuously, allowing devices to operate. An open circuit, on the other hand, interrupts this flow.
5.
FLASHCARD QUESTION
Front
หลอดไฟจะไม่ติดเว้นแต่จะมี
Back
วงจรปิด
Answer explanation
A light requires a closed circuit to allow current to flow. In a closed circuit, all components are connected, enabling the light to turn on. An open circuit, on the other hand, breaks the flow, preventing the light from lighting.
6.
FLASHCARD QUESTION
Front
ตัวต้านทานทำอะไรในวงจร?
Back
จำกัดการไหลของกระแสไฟฟ้า
Answer explanation
The function of a resistor in an electrical circuit is to limit the flow of current. This helps protect components from excessive current that could cause damage, making 'to limit the flow of current' the correct choice.
7.
FLASHCARD QUESTION
Front
วัสดุใดที่มักใช้เป็นฉนวน?
Back
ยาง
Answer explanation
Rubber is commonly used as an insulator in electrical circuits because it does not conduct electricity, preventing unwanted current flow. In contrast, materials like iron, copper, and aluminum are conductors.
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