MEDIUM
6th CBSE
IMPORTANT
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There are four forces acting on a block as shown in the figure. The magnitude and direction of the net force acting on it is ____.

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Important Questions on Force and Pressure

MEDIUM
6th CBSE
IMPORTANT
Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (CLASSROOM WING)>Q 47

A cylindrical vessel is filled with water as shown in the figure. Calculate the difference in pressures due to water at points A and B. (Pressure due to air is negligible, the density of water =1 g cm-3)

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MEDIUM
6th CBSE
IMPORTANT
Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (CLASSROOM WING)>Q 48
Choose the case where minimum friction acts
MEDIUM
6th CBSE
IMPORTANT
Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (CLASSROOM WING)>Q 49
Friction can be reduced by providing wheels. Explain the statement with an example.
MEDIUM
6th CBSE
IMPORTANT
Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (CLASSROOM WING)>Q 50
Explain how maximum static friction is called limiting friction.
MEDIUM
6th CBSE
IMPORTANT
Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (CLASSROOM WING)>Q 51
What is the purpose of oiling machinery?
MEDIUM
6th CBSE
IMPORTANT
Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (CLASSROOM WING)>Q 52
Lasya is watering the plants in her garden with a pipe of area of cross-section 'A' and observed that the force of water from the pipe is 'F'. Find the change in area of cross-section of the pipe to attain a pressure difference which is 1.5 times that of the initial.
MEDIUM
6th CBSE
IMPORTANT
Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (CLASSROOM WING)>Q 53
Explain with an example how frictional force depends on the area of contact.
EASY
6th CBSE
IMPORTANT
Pearson IIT Foundation Science>Chapter 2 - Force and Pressure>PRACTICE QUESTIONS (CLASSROOM WING)>Q 55
Define pressure.