Hii,
If you’ve done a lab report about friction, then help me out plz!!!(immediately needed)
So the lab report should be like this:
Materials: (I know this one)
Wooden blocks with screw hook
2N Spring scale
100g Weights
Carpet
Rubbermaid
Wooden surface
The table
Independent variable:
Dependent variable:
Title: Relationship between (IV) ____________and (DV)_______________
Question: What is the relationship between...
Hypothesis: If (IV) _______________, then (DV)_________________.
Procedure:
numbered, step-by-step directions
1.
2.
3.
4.
5.
Additional questions
1.What are the advantages and disadvantages to friction? Under what circumstances?
2. In what ways could friction be considered an obstacle or barrier?
3. In what ways could friction help to overcome a barrier or problem?
Answers
ADVANTAGES OF FRICTION
Friction plays a vital role in our daily life. Without friction we are handicap.
1. It is becomes difficult to walk on a slippery road due to low friction. When we move on ice, it becomes difficult to walk due to low friction of ice.
2. We can not fix nail in the wood or wall if there is no friction. It is friction which holds the nail.
3. A horse can not pull a cart unless friction furnishes him a secure Foothold.
DISADVANTAGES OF FRICTION
Despite the fact that the friction is very important in our daily life, it also has some disadvantages like:
1. The main disadvantage of friction is that it produces heat in various parts of machines. In this way some useful energy is wasted as heat energy.
2. Due to friction we have to exert more power in machines.
3. It opposes the motion.
4. Due to friction, noise is also produced in machines.
5. Due to friction, engines of automobiles consume more fuel which is a money loss
2.. in save way as to is a disadvantage
3.in same way as advantage