1. How will you express 1 nm in m? Question 1 A. 1×10 -3 m B. 1×10 -6 m C. 1×10 -9 m D. 1×10 -1 m Chapter Assessment Questions Chapter 1

2. Chapter Assessment Questions Answer: C Answer 1 Chapter 1 Reason: 1 nm is read as 1 nanometer. Here, the prefix nano stands for 10 -9 m.

3. Add the following numbers and write the answer in the least significant digits: 12.3 + 1.20 + 123. Question 2 A. 136.5 B. 1.4 × 10 2 C. 137 D. 1.37 × 10 2 Chapter Assessment Questions Chapter 1

4. Chapter Assessment Questions Answer: C & D Answer 2 Reason: The least significant digit in the above expression is in the 1’s place. Therefore, the answer should stop at the 1’s place. Chapter 1

5. Convert 3.650 into 3 significant digits. Question 3 A. 3.7 B. 3.6 C. 3.65 D. 0.360 × 10 1 Chapter Assessment Questions Chapter 1

6. Chapter Assessment Questions Answer: C Answer 3 Chapter 1 Reason: The last reported digit would be the 5. The digit to the right is a 0.

7. If 15 different individuals perform an experiment, and 15 answers are obtained, which answer will be accepted as the most accurate? Question 4 A. The answer obtained by the maximum number of persons. B. The eighth number if all the numbers are arranged in an ascending order. C. The answer most nearer to the expected answer. D. The average of all the 15 answers. Chapter Assessment Questions Chapter 1

8. Chapter Assessment Questions Answer: C Answer 4 Reason: Accuracy describes how well the result of a measurement agrees with the real value. Chapter 1

9. A quadratic relationship between two variables is written as ____. Question 5 A. B. C. D. Chapter Assessment Questions Chapter 1

10. Chapter Assessment Questions Answer: B Answer 5 Reason: Quadratic relationship between two variables is y = ax 2 + bx + c. Chapter 1

11. Standardized Test Practice 1.Two laboratories use radiocarbon dating to measure the age of two wooden spear handles found in the same grave. Lab A finds an age of 2250  40 years for the first object; lab B finds an age of 2215  50 years for the second object. Which of the following is true? Multiple Choice Chapter 1 A. Lab A’s reading is more accurate than lab B’s. B. Lab A’s reading is less accurate than lab B’s. C. Lab A’s reading is more precise than lab B’s. D. Lab A’s reading is less precise than lab B’s.

12. Standardized Test Practice 2.Which of the following is equal to 86.2 cm? Multiple Choice Chapter 1 A. 8.62 m B. 0.862 mm C. 8.62×10 -4 km D. 862 dm

13. 4.What is the slope of the graph? Multiple Choice Chapter 1 Standardized Test Practice A. 0.25 m/s 2 B. 0.4 m/s 2 C. 2.5 m/s 2 D. 4.0 m/s 2

14. Standardized Test Practice 5.Which formula is equivalent to Multiple Choice Chapter 1 A. B. C. D.

15. Standardized Test Practice 6.You want to calculate an acceleration, in units of m/s 2, given a force, in N, and the mass, in g, on which the force acts. (1 N = 1 kg·m/s 2 ) Extended Answer Chapter 1 A. Rewrite the equation F = ma so a is in terms of m and F. B. What conversion factor will you need to multiply by to convert grams to kilograms? C. A force of 2.7 N acts on a 350-g mass. Write the equation you will use, including the conversion factor, to find the acceleration with complete units.

16. 7.Find an equation for a line of best fit for the data shown below. Multiple Choice Chapter 1 Standardized Test Practice