1. MAINIDEA Why are concepts in physics described with formulas?

2. SI Units What is one advantage to using SI Units in science?

3. Dimensional Analysis How many kilohertz are 750 megahertz?

4. Dimensional Analysis How many seconds are in a leap year?

5. Significant Figures solve the following problems, using the correct number of significant figures each time.

a. 10.8 g - 8.264 g

b. 4.75 m - 0.4168 m

c. 139 cm - 2.3 cm

d. 13.78 g / 11.3 mL

e. 6.201 cm + 7.4 cm + 0.68 m + 12.0 cm

f. 1.6 km + 1.62 m + 1200 cm

6. Solving problems Rewrite F = Bqv to find v in terms of F, q, and B

7. Critical Thinking Using values given in a problem and the equation of distance = speed × time, you calculate a car's speed to be 290 km/h. Is this a responsible answer? Why or why not? Under what circumstances might this be a reasonable answer?

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