Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (COMPETITION WING)>Q 12

MEDIUM

6th CBSE

IMPORTANT

Earn 100

A girl can move a stone block at rest, placed on an iron sheet, by applying a force of $60 N$ . The force reduced to one-third when an oil is applied on the iron sheet. How much force will be required to move a stone block in second case?

Important Questions on Force and Pressure

MEDIUM

6th CBSE

IMPORTANT

Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (COMPETITION WING)>Q 13

Six helium balloons can lift a teddy bear of weight

50 N

. If the radius of each helium balloon is

2 π

, calculate the pressure inside each balloon.

MEDIUM

6th CBSE

IMPORTANT

Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (COMPETITION WING)>Q 14

A silver cube of base area of

30 m^{2}

and mass

2 kg

is melted and changed into a cuboid of area of cross section

2 m^{2}

. Calculate, how much pressure is increased on a plane surface when both the cube and cuboid made vertically stand.