Friction-Sample Papers

1.   Which is easy to drag- a heavy box or light box? (1)

2.   Why do we spray powder on carom. (1)

3.   What does frictional force produce? (1)

4.   Write some factors that affect the friction? (3)

5.   How is friction sometimes desirable? (2)

6.   Define different types of friction with examples. (4)

7.   What is spring balance? Write its construction and working with the help of diagram. (4)

8.   Write advantages and disadvantages of friction. (4)