Question

Self-Test 1. What system of measurement is used by scientists worldwide in their experiments? 2. What is the conversion factor for expressing measurements in different units within the metric system? For each measurement in Questions 3-8, give the metric unit of measure that would be most appropriate for expressing the quantity: 3. The length of your index finger 4. The distance between UNCG and the Atlantic Ocean 5. The amount of soda in a can from the vending machine 6. The amount of motor oil you get during your car's oil change 7. Your weight 8. The combined weight of you and your roommate 9. What is the metric unit for temperature? 10. At sea level, what is the temperature at which water will freeze, in °C? 11. At sea level, what is the temperature at which water will boil, in °C?

Answer 1

1: Metric system also known as International system of units ( SI Unit) is used worldwide by scientist.

2: 10

In order to convert between units, it's only necessary to multiply or divide by powers of 10. For example, 1 meter is 100 centimeters (multiply by 102 or 100) and 1000 milliliters is 1 liter (divide by 103 or 1000)

3: Centimeter

Centimeters are used for measuring small objects.

4: Kilometer ( Km)

Kilometer is the unit of length in the metric system.

5: Mililitre ( ml)

One litre = 1000 mililitre

6: Litre ( L)

Litre is the metric unit of volume.

7: Kilogram ( Kg)

Kilogram is the unit of mass in SI system.

8: Kilogram ( Kg)

Suppose my weight is 45 kg and my roommate weight is 40 kg combined weight will be

45 kg + 40 kg = 85 kg

9: Kelvin (K)

10: Zero degree celcius ( 0°C)

11: 100°C