Significant-Notation-etc. Part 1-1st-sem

1. Why is it more accurate to say a man weighs 150 newtons rather than just saying he is “heavy”?

•                                                A. It is a specific measurement
                                    

• B. It uses scientific notation  

• C. It sounds better      

• D. It is a guess

2. Which of the following is a base unit in the SI system?
                                                                              

• A. Gram

• B. Pound 

•      C. Liter 

• D. Kelvin

3. The SI unit for mass is:
                                                               

• A. Gram  

•       B. Kilogram

•    C. Pound

•     D. Ounce

4. Which unit measures luminous intensity in the SI system?
                                                                    

• A. Watt    

• B. Ampere 

• C. Candela  

• D. Lux

5. The metric prefix “kilo-” means:
                                                   

• A. 1,000

• A. 100   

•      B. 10      

• D. 0.001

6. Which of the following quantities is measured in seconds?
                                         

• A. Temperature  

• B. Time 

• C. Time 

•    D. Volume

7. What is the SI unit for temperature?
A. Celsius                          B. Fahrenheit                   C. Kelvin                            D. Joule
Answer: C

8. Which of the following is NOT a base unit in the SI system?
A. Mole                             B. Ampere                        C. Liter                               D. Meter
Answer: C

• A. Celsius     

• B. Fahrenheit

• 
       C. Kelvin                                                              
  

• D. Joule

8. 0.00052 has how many significant figures?
                                                                                                      

• A. 2

• B. 3

•   C. 4

• D. 5

9. What does “ms” stand for?
                                          

• A. Microsecond 

•   B. Millisecond 

• C. Megasecond 

• D. Milliliter

10. What is the scientific notation for 0.0001?
                                                                       

• A. 1 x 10³    

•   B. 1 x 10⁴

• C. 1 x 10⁻³

• D. 1 x 10⁻⁴