PRESSURE CLASS 8

Force in a direction perpendicular to a given surface area is called thrust

• TRUE

• FALSE

Pressure is

• thrust/ contact area

• contact area/ thrust

• thrust x contact area

• none of these

A force of 500N acts on an area of 50 m².What is the pressure in pascal?

• 100 Pa

• 10 Pa

• 25000 Pa

• 1/ 10 Pa

A brick is kept in two different ways on a table as shown below. The pressure exerted by the brick on the table will be

• (a) maximum in position A

• (b) maximum in position B

• (c) equal in both cases

How would the pressure change if the thrust is doubled keeping the area same?

• 2 times

• 4 times

• 1/ 2 times

• remain same