NCERT Class VIII Science Solutions: Chapter 11-Force and Pressure Part 2 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Question 5:

Two objects repel each other. This repulsion could be due to

1. Frictional force only
2. Electrostatic force only
3. Magnetic force only
4. Either a magnetic or an electrostatic force

Question 6:

Which one of the following forces is a contact force?

1. Force of gravity
2. Force of friction
3. Magnetic force
4. Electrostatic force

Question 7:

A water tank has four taps fixed at points A, B, C, and D as shown in Fig. The water will flow out at the same pressure from taps at

1. B and C
2. A and B
3. C and D
4. A and C

Question 8:

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

1. Maximum in position A
2. Maximum in position B
3. Maximum in position C
4. Equal in all cases.