LAb+2


 * Title:** Friction and Force


 * Research Question:** Which object takes the most force to pull?


 * Hypothesis:** If cork is tested then it should take more force to pull, because its quality of friction


 * Material:** You will be given three different surfaces, mass and a Newtonmeter.

__1.__

Surfaces || Test 1 || Test 2 || Test 3 || Total || Average || Cork || 3.00N || 2.50N || 2.00N || 7.50N || 2.50N || Plastic 1 || .50N || .50N || .50N || 1.50N || .50N || Plastic 2 || .70N || .50N || .60N || 1.80N || .60N || Carpet || 1.00N || 1.20N || 1.50N || 3.70N || 1.23N ||

2. 250g

If the weight is higher, then the force required increases, because of the amount of weight.

Weight |||| Test 1 |||| Test 2 |||| Test 3 |||| Average || 1000g |||| 3.00N |||| 2.80N |||| 3.50N |||| 3.10N || 500g |||| 2.00N |||| 1.80N |||| 1.50N |||| 1.76N || 200g |||| .50N |||| .80N |||| .80N |||| 0.7N || 100g |||| .50N |||| .50N |||| .30N |||| 0.43N || 50g |||| .05N |||| .10N |||| .15N |||| 0.10N || Surfaces |||| Test 1 |||| Test 2 |||| Test 3 |||| Total || Average || Cork |||| 2.50N |||| 2.00N |||| 2.40N |||| 6.90N || 2.30N || Plastic 1 |||| 1.20N |||| 1.00N |||| 1.05N |||| 3.25N || 1.08N || Plastic 2 |||| 0.60N |||| 0.70N |||| 1.00N |||| 2.30N || 0.76N || Carpet |||| 1.60N |||| 1.40N |||| 1.40N |||| 4.40N || 1.46N ||

Weight || Test 1 || Test 2 || Test 3 || Total || Average || 2K || 2.50N || 2.50N || 2.40N || || || 1.5K || 2.00N || 1.90N || 2.00N || || || 1K || 1.50N || 1.60N || 1.50N || || || .5K || 0.60N || 0.90N || 0.80N || || ||

Conclusion: Yes, our hypothesis was correct, but there must be factors that might sway in the favor. for instance, one of our recordings was incorrect or //could// be incorrect. because i was the tester, i was supposed to test everything, but i accidentally let rana have a go, but she didn't know how hard to push or pull, so this could of been incorrect.

Variables: Independent variable: Force Dependent variable: Weight Controlled variable: Materials