हिंदी
सी.आई.एस.सी.ई.आईसीएसई ICSE Class 8

The Unit of Thrust is Kgf Kg G M S-1 - Physics

Advertisements
Advertisements

प्रश्न

The unit of thrust is

विकल्प

  • kgf

  • kg

  • g

  • m s-1

MCQ

उत्तर

kgf

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Force and Pressure - Objective Questions [पृष्ठ ५६]

APPEARS IN

सेलिना Concise Physics [English] Class 8 ICSE
अध्याय 3 Force and Pressure
Objective Questions | Q 4.03 | पृष्ठ ५६

संबंधित प्रश्न

The pressure on a surface increases with an increase in the thrust on the surface.


The unit of thrust is  .......... 


Name two factors on which the pressure on a surface depends.


Water flows through a horizontal tube of variable cross section. The area of cross section at A and B are 4 mm2 and 2 mm2 respectively. If 1 cc of water enters per second through A, find (a) the speed of water at A, (b) the speed of water at B and (c) the pressure difference PA − PB.


In a hydraulic lift, the input piston had surface area 30 cm2 and the output piston has surface area of 1500 cm2. If a force of 25 N is applied to the input piston, calculate weight/force on output piston.


Match the following.

1. Density hρg
2. 1 gwt Milk
3. Pascal’s law `"Mass"/" Volume"`
4. Pressure exerted by a fluid Pressure
5. Lactometer 980 dyne

Pressure can be increased by decreasing the force.


Assertion (A): A sleeping mattress is so designed that when you lie on it, a large area of your body comes in its contact.
Reason (R): This reduces the pressure on the body and sleeping becomes comfortable.


Pressure is a scalar quantity because ______.

  1. it is the ratio of force to area and both force and area are vectors.
  2. it is the ratio of the magnitude of the force to area.
  3. it is the ratio of the component of the force normal to the area.
  4. it does not depend on the size of the area chosen.

A vessel filled with water is kept on a weighing pan and the scale adjusted to zero. A block of mass M and density ρ is suspended by a massless spring of spring constant k. This block is submerged inside into the water in the vessel. What is the reading of the scale?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×