Force and Charge Interactions

Force and Charge Interactions

Assessment

Interactive Video

Physics, Mathematics, Science

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains a Coulomb's Law problem involving three charges arranged in a triangle. It covers determining the direction and magnitude of forces on one charge using Coulomb's Law, vector decomposition, and trigonometry. The tutorial concludes with calculating the resultant force and its direction, emphasizing a step-by-step approach to problem-solving.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary goal of the problem discussed in the video?

To find the potential energy of the system

To calculate the electric field at a point

To determine the force on Q3

To measure the distance between charges

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do opposite charges interact with each other?

They repel each other

They attract each other

They form a neutral charge

They have no interaction

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the unit conversion necessary for calculating force using Coulomb's Law?

Convert micrometers to meters

Convert joules to electronvolts

Convert newtons to dynes

Convert microcoulombs to coulombs

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the magnitude of the force on Q3 from Q1?

100 Newtons

150 Newtons

80 Newtons

214 Newtons

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which trigonometric function is used to find the x-component of a force vector?

Cotangent

Sine

Tangent

Cosine

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total force acting in the x-direction?

80 Newtons

69 Newtons

100 Newtons

50 Newtons

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the angle of the resultant force with respect to the x-axis?

90 degrees

45 degrees

30 degrees

68 degrees

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