Definitions
Weight- the force that gravitation exerts upon an object

Mass-the quantity of matter in an object

Volume-the three-dimensional space occupied by an object.


Fun activity for mass, weight, and volume

Notes/Explanation:


This lady has a
lot of weight and mass.

The amount of space occupied by an object is called its volume. To find the volume you measure its length, width, and height and then multiply the three numbers and their units together. In measuring a liquid's volume, you are indicating the capacity of the container that holds that amount of liquid. A table-tennis ball and a golf ball have about the same volume. But if you pick them up, you notice a difference. The golf ball has more mass. Mass is a measurement of the quantity of matter in an object. The symbol W stands for the weight. You can find gravitational force, or weight, using Newton's second law, as follows: Because the gravitational force is the same as the weight and the acceleration due to gravity on Earth is 9.8 m/s/s, this equation can be written as follows: In other words, a mass of 1 kg weighs 1 kg X 9.8 m/s?, or 9.8 N. Weight and mass are not the same. Weight is a force, and mass is a measure of the amount of matter an object contains. However, weight and mass are related. The greater an object's mass is, the stronger the gravitational force between the object and Earth is. So the more mass an object has, the more it will weigh at the same location. Objects can have different weights, depending on what's pulling on them. For example, an astronaut weighing about 480 N on Earth would weigh only about 80 N on the Moon. Does this mean an astronaut on the moon would have less mass than on Earth? The answer is no, the mass of an astronaut would be unchanged. His weight is less than on Earth because the Moon has less mass and exerts a weaker gravitational force.

On planet earth, if a brick has a density of 80kg/cm3 and a volume of 60cm3, what is the mass?

On planet earth, if a solid rectangular cube has a length of 12, a width of 4, and a height of 3, what is the volume of the rectangle?


On planet earth, Bill has a mass of 200Kg after visiting the Chinese buffet his initial mass was 150Kg by how much did his weight change?

200Kgx9.8ms=1960N 150Kgx9.8ms=1470N 1960N-1470N=490N


Units
Mass- Kilograms

Volume- Liters

Weight- Newton’s

Everyday examples:
Mass- the mass of things (Ex: weight on Earth vs. another planet)

Volume-Buying containers of liquid (Ex: Gallon of milk, quart of apple juice)

Weight-weighing your self (Ex: weighing in Kg. or lbs.)

Formulas for calculating the weight, mass, and volume of objects:



This is why fat people
dont bungee jump, they
have to much mass for
gravity to pull them down with.