EASY
6th CBSE
IMPORTANT
Earn 100

Why would any small object coming from space catches fire after entering into the Earth's atmosphere?

Important Questions on Force and Pressure

MEDIUM
6th CBSE
IMPORTANT
Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (COMPETITION WING)>Q 8
The force exerted on a moving bike by its engine is 180 N and the roughness of the road applies a retarding force of 5 Non its tyres. Find the force that accelerates the vehicle and also mention the type of friction involved here.
MEDIUM
6th CBSE
IMPORTANT
Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (COMPETITION WING)>Q 9
Ammu, a second-class student of mass 15 kg is sliding over a slide inclined at an angle of 30° but her motion stopped at the middle of the slide. What would be the reason for this?
MEDIUM
6th CBSE
IMPORTANT
Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (COMPETITION WING)>Q 10
An iron cylinder of base area 7 cm2 and mass 10 kg is melted and reshaped into a rod of area of cross-section 1 cm2. Calculate the increase in the pressure exerted on a plane surface when both the cylinder and the rod are made to stand vertically on a plane surface. g=10 m s-2
MEDIUM
6th CBSE
IMPORTANT
Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (COMPETITION WING)>Q 12
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?
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 2π, 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 m2and mass 2 kg is melted and changed into a cuboid of area of cross section 2 m2. Calculate, how much pressure is increased on a plane surface when both the cube and cuboid made vertically stand.