Question

Name Directions: Read the questions carefully and write your answers in the space provided. 1. I:36 km/hr II:10 m/s a) I is greater than II c) I is equal to II b) I is less than II d) I is not related to II 2. 1:40 ㎡ 11 : 4 x 108 ml a) I is greater than II e) I is equal to II b) I is less than II d) I is not related to II 3. Number the steps of the scientific method in order Testing of the hypotheses or theories by fur-Careful observation of natural phenomena. ther experiment or observation. Development of hypotheses to explain the Formulation of rules or empirical laws based observations and empirical laws, and the re finement of the hypotheses into theories. on generalizations from observations. 4. Circle all derived quantities. a) time c) acceleration b) speed d) displacement

Answer 1

As per HOMEWORKLIB POLICY, we are solving only first 6 questions.
I: 36 km/hr = 36 times 5/18 m/s II: 10 m/s Therefore (c) I is equal to II 2. I: 40 m_3, II: 4 times 10^8 mL = 4 times 10^8 times 10^-3 L = 4 times 10^+ 5 L = 4 times 10^5 times 10^-3 m^3 = 4 times 10^2 = 400 m^3 Therefore (b) I is less than II 3 . 1. Carefull observation of natural phenomenon 2 .Testing of hypotheses or theories ... 3 . Formulation of rules or empirical ... 4. Development of hypothesis to explain... 4. Derived quantities are (b) Speed, (c) acceleration 5. Fundamental quantities are a) mass rightarrow Kilogram c) time rightarrow second d) length rightarrow meter 6. speed u = 1.5 m/s, time = 3 minutes = 3 times 60 sec = 180 sec So distance S_1 = ut = 1.5 times 180 = 270 m after that acceleration a = 0.5 m/s^2 Final speed V = 4 m/s \r\n hence using V^2 = 4^2 + 2as (4)^2 = (1.5)^2 + 2as_2 2as_2 = 16 - 2.25 = 13.75 Implies 2 times 0.5 s_2 = 13.75