Friction

Friction Worksheet-1

1. Friction is a type of:

(a) contact force                           (b) non contact force

(c) resistance force                      (d) Motion

2. A force of 5 N is required to move an object from rest. The value of static friction (f) is:

(a) 5N                 (b) f >5N            (c) f < 5N           (d) 10 N

Friction Worksheet-2

1. A streamlined body:

(a) increases friction                   (b) reduces friction

(c) decreases weight                    (d) increases weight

2. In decreasing order of magnitude which of the following is CORRECT?

(a) rolling, static, sliding friction

(b) static, sliding, rolling

(c) static, rolling, sliding

(d) sliding, static, rolling

Friction Worksheet-3

1. Which of the following statement is TRUE?

(a) static friction is more than dynamic friction

(b) static friction is less than dynamic friction

(c) static friction is equal to dynamic friction

(d) there is no relationship between static and dynamic friction

2. The force required to keep an object moving with the same speed is a measure of:

(a) static friction                           (b) sliding friction

(c) rolling friction                         (d) limiting friction