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1. Principal Steven was seen running on the high school track. If he ran 56.4mi/hr, how fast is he in m/s? As he finished, he said his "school spirit" made him do it.
2. Explain the three different modes of heat flowing including examples from your house.
3. In space below, define temperature and explain how it is not the same as heat.
4. (4.3E-2 cm)(5.67E6 cm) =
5. 4.21g + 7.004g + 6.34g =
6. If you have a measuring device that has marking to the 1/10th m, is this, 21.34m, a correct measurement you can make? Explain.
7. What is the difference between accuracy and precision? In science, why do our quantitative measurements need to be both? What is the name of the system we use to ensure this?
8. Why do we do controlled experiments in science and what is the one key aspect of a controlled experiment?
9. Give the 3 difference between a homogeneous mixture and a compound. Is a suspension one of these or nether?
10. Find a chemical reaction going on in your home or outside your house. Give me an physical extensive and physical intensive property of one the reactants in the chemical reaction. Give one observation that ensures that it is a chemical reaction.
Answer: 1) 25.2m/s , 2) 2.4E5 cm2 , 17.55g