Avanti Presentation Prototype Teacher 3.2

Physics | 11 | JEE | Mechanical Properties of Fluids | Fluid Dynamics

P10.2 Fluid DynamicsTotal Time:150 Minutes


The youtube playlist link for the chapter is http://bit.ly/P10-MechanicalPropertiesOfFluids In case the Problem Solving Videos are being played from YouTube please adjust the setting to HD to get the best playback quality.

Please go through the PPT in advance to understand the order in which things have to be played.

During the class, please adhere to the time limit prescribed for each component of the lesson


Spot Test

Start Spot Test

5 questions, 5 minutes

Questions will be displayed on students’ screens and can be attempted in any order.


Spot Test 04:56

QUESTION 1/5 The velocity of a particular particle _________ as it moves from one point to another in a steady flow.

(A) may change (B) remain constant

stop timer


Spot Test

QUESTION 2/5 Steady flow is achieved at _______ flow speeds.

(A) very low (B) high

(C) all

04:56 stop timer


Spot Test

QUESTION 3/5 Bernoulli’s equation applies to all fluids.

(A) true (B) false

04:56 stop timer


Spot Test

QUESTION 4/5 The velocity of fluid flow is _____ at narrow portions of a pipe and _____ at broader portions of the pipe.

(A) high, high (B) low, low

(C) high, low (D) low, high

04:56 stop timer


Spot Test

QUESTION 5/5 Equation of continuity is the statement of conservation of Energy in a fluid flow.

(A) true (B) false

04:56 stop timer


Spot Test Answers

(A) may change

(A) very low

(B) False

(C) high, low

(B) False

1.

2.

3.

4.

5.


Spot Test - Class Performance

Question 1: 30 students are correct





5 stu...

5 stu...

20 students

10 students

10 students

5 questions correct4 questions correct3 questions correct2 questions correct1 questions correct

refresh


P10.2.1 Equation of Continuity


ConcepTest

Start Concept Test

Question will be displayed on students’ screens


ConcepTest

In steady flow of a fluid, the acceleration of any fluid particle is

(A) Constant (B) Variable

(C) Zero (D) can't say

Close first vote

0 of 13 students responded


ConcepTest

Open for second vote

0

5

10

15

20

A B C DFirst vote


ConcepTest

In steady flow of a fluid, the acceleration of any fluid particle is

(A) Constant (B) Variable

(C) Zero (D) can't say

Close second vote

0 of 13 students responded


ConcepTest

0

12.5

25

37.5

50

A B C D

First vote

Second vote

Answer: (D) can’t say


ConcepTest Solution

Here in case the diameter of the pipe does not change and the height of the pipe does not change, the velocity remains constant, and there is no acceleration. But if there is a bend or change in diameter, the fluid particles might have to accelerate. When there is a bend, the fluid particles accelerate to change direction. When there is a change in diameter, the speed of the fluid particles change hence they must have accelerated. Hence we need more information and we cannot say for sure about the acceleration.


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Avanti Presentation Prototype Teacher 3.2