Water Displacement Worksheet Answer Key Pdf (2024)

FAQs

How do you solve water displacement? ›

If the sample floats, use a pencil to gently push the top of the sample just under the surface of the water. Record the number of milliliters for this final water level. Find the amount of water displaced by subtracting the initial level of the water from the final level.

The volume of displaced fluid is equivalent to the volume of an object fully immersed in a fluid or to that fraction of the volume below the surface for an object partially submerged in a liquid. The weight of the displaced portion of the fluid is equivalent to the magnitude of the buoyant force.

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.

Answer and Explanation:

The water displacement method involves measuring the volume of an object by immersing it in water and measuring the volume of water that is displaced. This method is relatively simple and straightforward, and it is relatively easy to make accurate measurements.

The mass of the displaced fluid can be expressed in terms of the density and its volume, m = ρV. The fluid displaced has a weight W = mg, where g is acceleration due to gravity. Therefore, the weight of the displaced fluid can be expressed as W = ρVg.

Hence, displacement (s) of an object is equal to initial velocity(u) times time (t), plus half of the acceleration (½ a) multiplied by time squared (t2).

Displacement Formulas – How to Calculate Displacement

Δx = x_f − x_i = 3 − 0 = + 3 m, i.e., to the right. So, the ball made a displacement of 3 meters from A to B. Now, the ball moves by − 4 points or − 4 m to point C. So, the final position now becomes an initial one and final, x_i = − 4 m.

Formula: Displacement = cubic capacity x 62.4 lb / cu ft • This calculation gives displacement in pounds. Water weights 62.4 pounds per cubic foot. The maximum displacement of an outboard powered boat is to be calculated by Simpson's Rule.

That's the name straight out of the lab book used by the chemist who developed the product back in 1953. The chemist, Norm Larsen, was attempting to concoct a formula to prevent corrosion—a task which is done by displacing water. Norm's persistence paid off when he perfected the formula on his 40th try.

In math, volume is the amount of space in a certain 3D object. For instance, a fish tank has 3 feet in length, 1 foot in width and two feet in height. To find the volume, you multiply length times width times height, which is 3x1x2, which equals six. So the volume of the fish tank is 6 cubic feet.

How to measure volume of water? ›

Volumes of liquids such as water can be readily measured in a graduated cylinder. To use the water displacement method, an object (in this case, a small metal cylinder) is inserted into a graduated cylinder partially filled with water. The object's volume occupies space, displacing liquid and raising the water level.

Using stones and a jug of water, kids will see with their own eyes how water is displaced when an object is submerged in it. Get several different sized clear plastic containers and have your child experiment on their own by filling the containers with various levels of water.