Physics (Class 10)

Trishna Knowledge Systems

Chapter 5 Hydrostatics - all with Video Answers

Educators

Chapter Questions

01:02

Problem 1

What is torricellian vacuum?

Narayan Hari

Numerade Educator

00:40

Problem 2

Hydraulic press works on the principle of _____

Suman Saurav Thakur

Numerade Educator

01:14

Problem 3

What is a test tube float? What are the different types of test tube floats?

Matthew Baker

Numerade Educator

00:47

Problem 4

Apparatus used to determine the relative density of liquids is _____

Catherine Lemar

Numerade Educator

04:24

Problem 5

Define hydrostatics.

Vishal Sharma

Numerade Educator

01:09

Problem 6

Define and write units of thrust and pressure.

Shivani Naidu

Numerade Educator

01:11

Problem 7

Define fluids.

Shazia Naz

Numerade Educator

01:07

Problem 8

What do you understand by barometric liquid and barometric height?

Averell Hause

Carnegie Mellon University

01:11

Problem 9

Plimsoll lines are marked on ships to protect the ships from sinking into water due to _____

Abhishek Jana

Numerade Educator

02:30

Problem 10

An object weighs $W_1$ in air and $W_2$ when half of its volume is immersed in water. The relative density of the object is _____

Mercedes Mazza

Numerade Educator

01:47

Problem 11

Write the expression for pressure exerted by a liquid. What do the terms in the expression stand for?

Luuk Verhoeven

Numerade Educator

02:21

Problem 12

Pressure of the gas enclosed inside a cylinder can be measured using _____

Surjit Tewari

Numerade Educator

04:02

Problem 13

State Archimedes' principle.

Prabhakar Kumar

Numerade Educator

06:24

Problem 14

A balloon of volume ' $v$ ' and density ' $d$ ' is moving in upward direction in air. If the density of air is ' $D$ ', then the effective upward acceleration of the body is

Vipender Rao

Numerade Educator

01:08

Problem 15

State Pascal's law.

Ajay Singhal

Numerade Educator

02:10

Problem 16

Density of air at higher altitudes is _____ than that at the surface of earth.

Sheh Lit Chang

University of Washington

01:30

Problem 17

Define centre of buoyancy.

Ben Nicholson

Numerade Educator

Problem 19

Give the average magnitude of the atmospheric pressure in SI and CGS units.

Shivani Naidu

Numerade Educator

00:55

Problem 20

Define stable, unstable and neutral equilibrium,

Nicole Smina

Numerade Educator

01:06

Problem 21

What is a hydrometer? Mention different types of hydrometers,

David Collins

Numerade Educator

02:26

A cylindrical container is filled with water upto the brim. If the pressure exerted by the water at the bottom of the container is _____$100 \mathrm{~Pa}$ the height of the container is $\mathrm{cm}$ (take $\mathrm{g}=10 \mathrm{~m} \mathrm{~s}^{-2}$ ).

Narayan Hari

Numerade Educator

00:29

Problem 23

What is a barometer? Mention different types of barometers.

Morgan Thompson

Numerade Educator

01:21

Problem 24

Why does Fortin's barometer give more accurate readings?

Kevin Zaborsky

Numerade Educator

02:12

Problem 25

The upthrust acting on a body when immersed in two different liquids are $10 \mathrm{~N}$ and $15 \mathrm{~N}$ respectively. The ratio of densities of liquids is _____

Baskar P

Numerade Educator

01:08

Problem 26

Define manometer.

Nicole Smina

Numerade Educator

01:28

Problem 27

Define altimeter.

Ajay Singhal

Numerade Educator

View

Problem 28

Define upthrust.

Eduard Sanchez

Numerade Educator

00:23

Problem 29

Define relative density or specific gravity.

Mayukh Banik

Numerade Educator

02:00

Problem 30

The ratio of the area of cross-sections of the smaller and bigger pistons of a hydraulic press is 1 : 4. When a $100 \mathrm{~N}$ force is applied on the smaller piston the number of weights each of weight $1 \mathrm{~kg}_{\mathrm{ws}}$ that can be placed on the bigger piston is _____ ( $\left.\mathrm{g}=10 \mathrm{~m} \mathrm{~s}^{-2}\right)$.

Arpit Gupta

Numerade Educator

02:17

Problem 31

Why are the walls of a dam broader at the base?

Sarah Mccrumb

Numerade Educator

03:42

Problem 32

Obtain an expression for the upthrust experienced by a body when immersed in a liquid and state the factors affecting it.
Factors affecting the upthrust.
(1) volume of the immersed part of the body
(2) density of the liquid

Luuk Verhoeven

Numerade Educator

01:18

Problem 33

Mention a few defects of a simple barometer.

Narayan Hari

Numerade Educator

01:38

Problem 34

Obtain the expression for pressure exerted by a liquid

Mohamed Raafat Mohamed

Numerade Educator

01:12

Problem 35

Given some uses of Bramah press.

Pankaj Jain

Numerade Educator

03:46

Problem 36

State the laws of floatation.

Diane Koenig

Numerade Educator

01:16

Problem 37

Why is mercury preferred as a barometric liquid?

Shivani Naidu

Numerade Educator

00:38

Problem 38

What is lateral pressure? Why is the net lateral pressure acting on a body immersed in a liquid zero?

Eugene Schneider

University of Minnesota - Twin Cities

00:50

Problem 39

Mention some consequences of atmospheric pressure.

Marissa Turner

Numerade Educator

01:18

Problem 40

What are the advantages of an aneroid barometer over simple barometer?

Narayan Hari

Numerade Educator

01:42

Problem 41

State the forces acting on a body when it is immersed partially or completely in a liquid.

David Collins

Numerade Educator

01:48

Problem 42

Enlist the factors on which the pressure at a point in fluids (liquids or gases) depends. Also, state the factors which do not affect it.

Shazia Naz

Numerade Educator

02:11

Problem 43

State the factors which affect the vertical height of a barometric liquid.

Ronald Prasad

Numerade Educator

05:40

Problem 44

Write a note on variation in atmospheric pressure with altitude,

Teresa Kelly

Numerade Educator

02:43

Problem 45

State laws of liquid pressure.

Shahina -

Numerade Educator

01:09

Problem 46

Explain how Hare's apparatus is used to find R.D of a liquid.

David Collins

Numerade Educator

01:06

Problem 47

Explain how a test tube float can be used as constant and variable immersion hydrometer.

David Collins

Numerade Educator

01:05

Problem 48

What is relative density? Show that R.D $=\frac{W_1}{W_1-W_2}$, where $W_1$ is the weight of the body in air and $W_2$ is its weight in water.

Eric Mockensturm

Numerade Educator

01:17

Problem 49

Write a note on manometer.

Shashika Bandara

Numerade Educator

02:12

Problem 50

If $\mathrm{w}=$ weight of a body
$\mathrm{F}_{\mathrm{B}}=$ buoyant force
Explain the three conditions which arise when the body is immersed in a liquid.

Baskar P

Numerade Educator

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