A graduated cylinder
Which is the most accurate method of volume measurement?
Volumetric flasks, burets and pipets are the most accurate with tolerances of less than 0.2%. To achieve these accuracies the person using the device needs to use the proper technique and the measurements need to made at the temperature for which the glassware was calibrated (usually 20 degrees C).
What is the correct method for finding volume?
To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height . The volume is expressed in cubic units.
Why is the water displacement method more accurate?
This means that using standard laboratory graduated cylinders to measure displaced water allows for a very easy conversion of the volume of displaced water to the volume of the object. This method is more accurate than measuring water that has spilled out an overflowing beaker.
Which method of determining density is more accurate?
Archimedes’s principle method is more accurate in the determination of the density. According to this method, the buoyant force that is there on the object is equal to the weight of the fluid that it displaces.
Which glassware is most accurate for measuring volume?
Graduated cylinders, beakers, volumetric pipets, burets and volumetric flasks are five kinds of glassware often used to measure out specific volumes. Volumetric pipets, flasks and burets are the most accurate; the glassware makers calibrate these to a high level of accuracy.
What instruments would you use to measure distance?
- Ruler/Straight Edge Rule.
- Tape Measure.
- Measuring Tape Reel/Long Tape.
- Measuring Wheel.
- Laser Tape Measure.
What is the formula of volume?
| Table 3. Volume Formulas | Shape Formula Variables | Cube V=s3 s is the length of the side. | Right Rectangular Prism V=LWH L is the length, W is the width and H is the height. | Prism or Cylinder V=Ah A is the area of the base, h is the height. |
|---|
How do you find the length if you have the width and height and volume?
Multiply the length (L) times the width (W) times the height (H) . The formula looks like this: LxWxH For this example, to calculate the volume of the object the formula would be 10 x 10 x 10 = 1,000 cubic inches.
What is the main advantage of using the water displacement method?
What is the main advantage of using the water displacement method to measure the volume of a metal versus using the length measurements? Water displacement can be used for irregularly shaped metals such as lumps . Below is a graph of mass versus volume for iron.
Why do we need the displacement method?
The displacement method (submersion, or dunking method) can be used to accurately measure the volume of the human body and other oddly shaped objects by measuring the volume of fluid displaced when the object is submerged , as illustrated in the figure below.
Why is water displacement an effective way of measuring volume?
Find mass using a balance scale, and use water displacement to find the volume of irregular objects. Water displacement works because the amount of water displaced by an object submerged in water equals the volume of the object .
What is the best way to measure density?
One of the basic terms used in many natural sciences is density, a physical property defined as an object’s mass divided by its volume. This means that to measure density, you typically need to measure an object’s mass and volume separately, then calculate its density by dividing the mass by the volume .
Is density an exact number?
Density is usually a measured property of a substance , so its numerical value affects the significant figures in a calculation. Notice that density is defined in terms of two dissimilar units, mass and volume.
What are two different ways to find density?
Using a vernier caliper or ruler, measure the length, depth and width of the object in centimeters. Multiply these three measurements to find the volume in cubic centimeters. Divide the object’s mass by its volume to determine its density . Density is expressed in grams per cubic centimeter or grams per milliliter.
