All Questions
Tagged with terminology forces
76
questions
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What is the difference between field and disturbance?
In my textbook Sears & Zemansky's University Physics, 15th ed, Page-399, it is written that,
"A useful way to describe forces that act at a distance is in terms of a field. One object sets ...
- 69
3
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2
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121
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Unit in unit area
Pressure is defined as force per unit area. What is the meaning of unit and why is the term unit used with area?
- 31
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66
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What is difference between normal force and reaction force? [duplicate]
according to my book the perpendicular component of reaction force is called normal force when there is contact between two bodies. I can not understand that how for example when we jump we pushes the ...
user379089
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2
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175
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What is normal force and when it acts?
what are contact forces and according to: https://www.physicsclassroom.com/class/newtlaws/Lesson-2/Types-of-Forces
it says there are 6 types of contact forces. I am having doubt with applied force and ...
user379089
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2
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91
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What is an example of a contact force that is not a normal force?
I have a question about contact force and normal force.
whenever two bodies are in contact and one body tries to push another body there will be a normal force acting between them. like when we push ...
user379089
2
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3
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421
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Why is electromotive force in magnetohydrodynamics a vector quantity?
In the mean-field dynamo theory in magnetohydrodynamics, I frequently came across a quantity;
$\langle v'\times B' \rangle$, which is termed as the mean electromotive force. I want to know that why is ...
- 187
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368
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Confusion about near-identical terms: gravity, gravitation, gravitational force - are they all the same?
As my other questions also point out, I study this for fun. I am in no university yet.
as the title (hopefully summarizes), my question is this:
is these words(or terms,) the same?
gravity
...
- 398
0
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60
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Is a 'resultant' a single force acting on an object?
If I have two forces $A$ and $B$ acting on an object, in a lot of cases (especially Archimedes law) we take these two forces and mathematically sum them, which gives the value of a single force ...
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6
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2k
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What actually is impulse?
In my textbook it is mentioned that “impulse is used to get an idea of about the change in dynamical state of a moving particle”,but what does impulse actually mean?
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76
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Why is the self-weight of a cable not uniformly distributed?
I have learned that a free cable that is hanging with only its self-weight to consider will form a caternary while a cable with a uniformly distributed load forms a parabola. Why is the self-weight of ...
- 163
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3
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842
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Difference between point force and force
In high school, we used to draw a free diagram, and we are asked what are the forces acting on the object. When we represent these forces, we represent them using vectors going out from a point called ...
- 231
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4
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Is "force" and "exerting a force" the same or different things?
Is "exerting a force" and "force" the same or different things?
Either it your answer is "same" or "different" give an explanation for this.
How this doubt came ...
user316791
5
votes
1
answer
1k
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Why are non-central nuclear forces also called tensor forces?
Experiments suggest that nuclear forces are non-central. Sometimes this is called tensor forces. Why?
- 11.7k
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Why is electromagnetism considered a non-contact force?
The four fundamental forces (gravity, the strong force, the weak force, and electromagnetism) are all supposed to be non-contact forces. Yet, electromagnetism governs all contact forces between ...
- 13
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Centripetal Force Terminology
Is centripetal force the correct terminology? Why is the resultant (orthogonal ) force component called "centripetal force"? In my view, it is just a component
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