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Density is calculated using the equation: density = mass ÷ volume. Density is measured in kg/m³ or g/cm³. The volume of water displaced by a submerged object is equal to the volume of the object. The dimensions of a regular cuboid can be measured accurately with Vernier callipers.
weight A reel of copper wire is labelled length 30 m and diameter 2 mm . A student calculates the volume of the copper wire. Which instruments does he use to measure accurately the leng th and the diameter of the wire? Which row correctly shows examples of a vector quantity and a scalar quantity?
Mass, Weight & Density. 1 A brick is placed on a newton meter and then on a beam balance. 3 The mass of a stone is found on Earth using a pan balance. The weight of the stone is found using a newton meter.
• Note the dimensions of a regular solid and use them to find the volume. Record the volume in v cm 3 . • Place the solid on a weighing pan and record its mass as m gm
Weight is affected by the gravitational field strength; the stronger the gravitational field, the greater the weight of the object. Define density. Density is defined as the mass per unit volume of a material. It describes how much mass is contained in a given volume.
Measure the length, width and height of the box and multiply them together to get the volume. Place the box on a balance to find the mass of the box. Use the mass and volume in the density equation \left ( \rho = \dfrac {m} {V} \right) to calculate the density of the rock.
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Included are the methods of solving for mass & volume (regular & irregular), differentiating between weight & mass, and steps for finding volume using water displacement. There are also Guided Student Notes available (EDITABLE).
