PHY101 Current Finalterm Papers Fall 2020
PHY101 Current Finalterm Papers Fall 2020 | QueryVU | Short Questions with Answers
#PHY101 Physics short questions and answers collection for preparation of Exams.
What is the difference between kinetic and static friction?
1.Static friction: The friction that exists between two surfaces that are not moving relative to each other. 2.Kinetic friction: The friction that exists between two surfaces that are moving relative to each other.
Question No: 2
What is flux in Physics?
The word flux has many meanings, but in physics flux is the "rate of flow" of some quantity through an area. The thing "flowing" could be a fluid (like air or water), some form of energy (like heat, light, or radio waves), or a field (gravitational, electric, or magnetic). In the case of fields, however, the idea of "flow" is more poetic than literal.
Question No: 3
What is impulse?
The simple definition for impulse is that it is a change in momentum. If you apply a force on an object 1 s then you see small change in the momentum. However, if you apply force on an object long period of time then you see the amount of change in momentum is bigger than the first situation. In summary, I try to say that impulse is the multiplication of applied force and time interval it applied. Impulse is also a vector quantity having both magnitude and direction. It has the same direction with applied net force. Impulse = Force*Time Interval
Question No: 4
A potter’s wheel rotates. A location farther from the axis will have a greater angular velocity than one closer to the axis. Either yes or no explain in each case.
Wrong. They all have the same angular displacement over time, which means they have the same angular velocity, as well. In contrast, they do have different linear (tangential) velocities.
Question No: 5
Wave speed in a string is a function of frequency, so if I increase the wave frequency, will the wave speed increase too?
No. The speed of a wave in a string is fixed by the tension and linear density of
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