Coulomb's Law Quizz

Coulomb's Law Quizz

11th Grade

15 Qs

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Coulomb's Law Quizz

Coulomb's Law Quizz

Assessment

Quiz

Physics

11th Grade

Easy

Created by

Thúy Trần Thanh

Used 1+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

potential diffirent nghĩa là gì

điện tích điểm

điện tích đứng yên

điện trường

hiệu điện thế

Answer explanation

electric field: điện trường

stationary charge: điện tích đứng yên

point charge: điện tích điểm

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

permittivity of free space nghĩa là gì

hằng số điện môi

lỗ trống

trường hấp dẫn

trường điện từ

Answer explanation

holes: lỗ trống

gravitational fields: trường hấp dẫn

electric field: điện trường

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

proportional nghĩa là gì

sấp xỉ

bằng

tỉ lệ nghịch

tỉ lệ thuận

Answer explanation

proportional: tỉ lệ thuận

inverserly proportional: tỉ lệ nghịch

Mọi người chú ý câu hỏi này để trả lời câu sau :)

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the statement of Coulomb’s law

Any two point charges exert an electrical force on each other that is proportional to the product of their charges and proportional to the square of the distance between them.

Any two point charges exert an electrical force on each other that is proportional to the product of their charges and inversely proportional to the square of the distance between them.

Any two point charges exert an electrical force on each other that is inversely proportional to the product of their charges and inversely proportional to the square of the distance between them.

Any two point charges exert an electrical force on each other that is proportional to the product of their charges and proportional to the square of the distance between them.

Answer explanation

Any two point charges exert an electrical force on each other that is proportional to the product of their charges and inversely proportional to the square of the distance between them.

Dịch: Hai điện tích điểm bất kỳ tác dụng lên nhau một lực điện tỷ lệ thuận với tích hai điện tích của chúng và tỷ lệ nghịch với bình phương khoảng cách giữa chúng.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A definition of electric potential

The electric potential at a point is equal to the work done in bringing unit negative charge from infinity to that point

The electric potential at a point is equal to the work done in bringing unit positive charge from infinity to infinity.

The electric potential at a point is equal to the work done in bringing unit positive charge from zero to that point

The electric potential at a point is equal to the work done in bringing unit positive charge from infinity to that point

Answer explanation

The electric potential at a point is equal to the work done in bringing unit positive charge from infinity to that point

Dịch: Điện thế tại một điểm bằng công thực hiện để đưa điện tích dương của đơn vị từ vô cực đến điểm đó

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When two identical spheres carry charges of the same magnitude, when brought close to each other, they repel each other. Let them come into contact with each other, then separate them a small distance.

attract each other

repel each other

can attract or repel each other

do not interact with each other

Answer explanation

Media Image

When the two spheres come into contact with each other, their charges will be balanced. So when they separate, the two charges will repel each other.

Dịch: Khi hai quả cầu tiếp xúc với nhau thì điện tích của chúng cân bằng. Vậy khi tách ra, hai điện tích sẽ đẩy nhau.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the distance between two point charges and the magnitude of each charge are simultaneously increased by 2 times, the electrostatic interaction force between them will

unchanged  

decreased by 2 times

increased by 2 times

increased by 4 times

Answer explanation

Media Image

Dịch đề: Nếu tăng khoảng cách giữa hai điện tích điểm và độ lớn mỗi điện tích lên 2 lần thì lực tương tác tĩnh điện giữa chúng sẽ

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