15 terms

# Mr Hegarty MHS Geometry Intro Volume and Density

Key vocabulary for density, mass and volume.

#### Terms in this set (...)

Density
1. the measure of how much mass is contained in a given volume 2. how tightly packed the matter in an object is 3. the ratio of matter per unit volume
Matter
1. a substance that occupies space, has mass, and cannot be created or destroyed easily 2. anything that has weight and occupies space 3. anything with volume and mass.
Mass
1. the measure of the amount of matter in an object. 2. the measure of how much matter is contained in an object. 3. the component of matter that gives it weight in a gravitational field.
Volume
1. a measure of the size of a body or region in three-dimensional space. 2. The amount of space an object takes up. 3 Length x Width x H
1. a tall thin container marked with lines that is used to accurately measure the volume of liquids. 2. The peice of lab equipment best suited for finding liquid volume.
Regular Shaped Object
1. any three dimensional object such as a cone, cube sphere or pyramid. Its volume can be determined using a ruler and mathematical formula. 2. An object whose volume can be determined by a math formula.
Irregular Shaped Object
1. any object that has no definite shape such as a rock or paper clip. Its volume is measured by water displacement 2. an object whose sides or any parts are impossible to measure with a metric ruler.
Water Displacement
1. a method used to determine the volume of an irregular solid. 2. the movement of water when an object is added to a measured amount of water in a graduated cylinder; the volume of the object is the difference between the 1st measurement and the the final one with the object,
Weight
a measure of the force of gravity on an object. unlike mass the weight of an object changes with any change in gravity. 2. equal to the amount of gravity pulling on an object. [larger mass=more gravity=more weight]
Grams
1. basic metric unit for measuring mass 2. Metric unit of weight equal to one thousandth of a kilogram, 3. defined as the mass of 1mL or 1cm3 of water
Kilograms
1. 1000 grams 2. Measurement of mass, (kg) 3. meausres amount of matter in an object- mass
Newtons
1. the unit of measurement for force 2. base unit for force of gravitates effect on mass 3. amount of force needed to accelerate 1kg at a rate of 1m/s (1 n=.25 lb) 4. measured with spring scale
Triple Beam Balance
1. tool used to measure mass 2. a type of balance that uses three weights to measure mass of an object in grams (g)
Spring Scale
1. any standard instrument of measurement that has marking at established intervals. 2. a device used to measure the force of gravity (weight) on an object using a spring apparatus, It measures mass or weight in newtons, grams, or pounds.
Gravity
1. the force of attraction between all matter in the universe [the larger the mass the larger the gravitational attraction] 2. the force from the matter making up earths mass that holds you to the planet