Pressure
- Define pressure. Give its SI unit.
- Define 1 pascal pressure.
- What is liquid pressure?
- State Pascal's law. Give 2 applications of it.
- Show that a hydraulic machine is a force multiplier.
- What is upthrust? Give its SI unit and CGS unit.
- Prove that upthrust (U) = (h2 - h1)Adg = Vdg, where th...
- State Archimede's principle.
- State law of flotation.
- What is the relation between the density and upthrust o...
- What are the factors on which the upthrust of a liquid ...
- The weight of a stone in three different media air, wat...
- Why the bags are provided with broad handles?
- Why the railway tracks are laid on large sleepers?
- Why is it difficult to walk on the graveled roads?
- Why are nails made to have a pointed end?
- An egg sinks in freshwater but floats on a concentrated...
- It is easier to lift the bucket of water until it remai...
- An iron nail sinks in water but the ship made of iron f...
- Why is it easier to swim in seawater than in river water?
- Why does an iceberg float on water?
- An iron nail sinks water but floats on mercury. Why?
- What is atmospheric pressure? Write its importance.
- What is a barometer?
- What is a syringe? Write its uses.
- Describe the working mechanism of a syringe.
- What is a water pump? Write its working mechanism.
- What is an air pump?
- Write the differences between the following.i. Force an...
- Prove that: p=dgh
- Mention two factors which affect pressure due to the li...
- When a body is fully or partially immersed in a liquid,...
- State Pascal's law. Name any two instruments based on P...
- State Archimedes' principle.
- State law of floatation.
- If a freely floating ship has a weight of 5*105 N, what...
- How does an air pump work?
- Describe downstroke.
- Describe upstroke.
- Why can't we use water in barometers?
What is the relation between the density and upthrust of a liquid?
The relation between the density and upthrust of a liquid is:
We have, upthrust = Vdg
So, upthrust ∝ d
App is always easy.