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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?
Physical Science Mass and Weight. Use the following formula to solve for weight: Weight (W) = Mass (m) x gravity (g) W = mg. Mass is measured in kilograms (kg) Gravity on earth is a constant: 9.8 m/s2 Weight is measured in Newton’s (1 N = 1 kg m/s2) Answer the following questions – show ALL WORK and UNITS. 1. Define Mass –.
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Lab #1 Measurement of length, Mass, Volume and Density . Readings. Before you begin this laboratory read chapter 1 of the textbook. Objectives. After completing this lab, you will be able to: Make measurements to the nearest 1/10 of a millimeter using a meter stick. Use a vernier caliper to make measurements to the nearest 1/10 of a millimeter.
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In this lab you will measure a number of things within the classroom and outside. Make use of the prelab reading and media/references to familiarize yourself with the physical principles and quantities related to measuring distance, area and volume, time and mass/weight.
- You have a rock with a volume of 15cm3 and a mass of 45 g. What is its density? Show Problem 1 solution. Hide. Density is mass divided by volume, so that the density is 45 g divided by 15cm3, which is 3.0 g/cm3.
- You have a different rock with a volume of 30cm3 and a mass of 60g. What is its density? Show Problem 2 solution. Hide. Density is mass divided by volume, so that the density is 60 g divided by 30cm3, which is 2.0 g/cm3.
- In the above two examples which rock is heavier? Which is lighter? Show Problem 3 solution. Hide. The question is asking about heavier and lighter, which refers to mass or weight.
- In the above two examples which rock is more dense? which is less dense? Show Problem 4 solution. Hide. The question is asking about density, and that is the ratio of mass to volume.
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.
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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.
