TASK 4: Read the following concept about friction and identify whether it is True or False. Answer it in youre barainly. 1. To enable us to walk, we need the friction of force between the ground and our feet. 2. When there is friction between the ground and the feet then it is possible for us to move from one place to another. 3. Static friction is to keep an object at rest. 4. Smooth surfaces produce more friction and rough surfaces reduce friction. 5. Lubricants are used to make a surface smoother and reduce friction.