Part 1 -Multiple Choice (30 points) When the scientific method is applied to a p
ID: 204272 • Letter: P
Question
Part 1 -Multiple Choice (30 points) When the scientific method is applied to a problem, a set of procedures is followed to scqwire knowledge and explain phenomena. The procedural steps associsted with the scientifie met method nor a) theory, hypothesis, fact, experiment, scientifie law b) fact, bypothesis, en esperiment, theory, sclesific la nt, fact, ssientific law, hypothesis, theor by strong attractive forces, are in close contact with one another, but are ) vapor ,theory, experimens, fact, scientifie law 2. Which state of matter consists of particles held together f firmly but not rigidly? These particles are held together able to flow by one another liquid 3. An astronaut uses a laboratory balance and weighs an object on earth and again on the moon. Which statement below about the weight and mass of the object is TRUE? a) The mass and weight will be identical on the earth and the moon. b) Both the mass and weight will be different on earth and moon. c) The weight will be the same on earth and moon but the mass will be less on the moon. d) The mass will be the same on earth and moon but the weight will be less on the moon 4. Which are isotopes? An atom that has an atomic number of 34 and a mass number of 76 is an isotope of an atom that has a) An atomic number of 32 and a mass number ofb) 42 protons and 34 neutrons. c) An atomic number of 34 and a mass number ofd) 42 neutrons and 34 protons 76. 80, 5. Identify the INCORRECT statement below: a) b) Energy is defined as the capacity to do work or to transfer heat. Potential energy is the energy an object possesses because of its position, condition, or composition. Endothermic processes absorb energy from their surroundings. Liquids flow and assume the shape of their container, occupying all available volume. c) d) Chemical properties are related to the kinds of chemical reactions that substances undergo as they change composition. The obs mass ratio = 8:1, and 6.0 g of hydrogen reacts with 48.0 g of oxygen to form the same product with oil mass ratio = 8: l is evidence for the law of 6. a) Multiple proportions b) Energy conservation. e) Mass conservation .d Definite 7. Classify which object would be considered microscopic (not macroscopic or particulate) b) Plant cell c) Protein molecule d) Electron a) Tree 8. Which of the following underlined items is not an extensive property? b) the volume of a glucose solution a) the mass of a diamond c) the color of a cobalt compound d) the diamster of a soap bubleExplanation / Answer
Ans 1) b) fact, hypothesis, experiment, theory, scientific law
It is the order because we first try to find out the facts of a particular thing and formulate a hypothesis. In order to prove the hypothesis there are several experiments that need to be conducted which is followed by formulation of the theory if hypothesis is proved right and then it is the scientific law which comes last.
Ans 2) a)Liquid – The molecules in the liquid are not rigid and loosely bonded to each other with help of hydrogen bonds and other attractive forces.
Ans 3) d) The mass will be same on earth and moon but the weight will be less on the moon. The gravity in moon is less than Earth and hence the object becomes light and weights less on Moon.
Ans 4) c) An atomic number of 34 and a mass number of 80. The atomic number remains same which is the number of protons but the mass number is different.