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25 Cards in this Set
- Front
- Back
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What is volume? |
•Volume is defined as the three-dimensional space occupied by matter or enclosed by a surface. |
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What is the unit of volume |
the cubic meter (m3), but other units such as liter and cubic centimeters can be used. |
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What are some instruments used to measure volume? |
•Graduated Cylinder •Burette •Pipette |
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What is a graduated or measuring cylinder? |
a laboratory apparatus used to measure the volume of a liquids, chemicals, or solutions during a laboratory experiment. |
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How do you read a measuring cylinder |
Place the cylinder on a flat surface. • Find the meniscus line. •Read the volume that corresponds with the bottom of the meniscus |
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What is a burette used for? |
Burette is used to dispense small volumes of liquid called aliquots, or sometimes gas, with high accuracy. |
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What is the use of a pipette? |
To transport a measured volume of liquid. |
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What is the volume formula of a cube? |
Volume = length x length x length (l³) |
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Volume of Cuboid formula |
Volume= length x width x height (lxwxh) |
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Volume of Cylinder |
Volume= π x radius squared x height (πr²h) |
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Volume or sphere |
Volume= 4/3 x π x radius cube (4/3πr³ |
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Volume of cone |
Volume= 1/3 x π x radius squared x height (1/3πr²h) |
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What method is used to calculate the volume of irregular shaped objects |
The water displacement method is used when finding the volume of an irregular shaped obje |
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What is area |
•The area is the amount of space within the perimeter of a two-dimensional shape |
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Area of :Rectangle or square |
Area= Length x width (l x w) Circle Area= π x radius s |
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Area of :Cirlce |
Area= π x radius squared (πr²) |
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Area of :triangle |
Area= ½ base x height (1/2bxh |
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Area of : trapezium |
Area= ½ (base x base) height (1/2 (a + b) h) |
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What is density? |
Density refers to the más per unit volume of an object. |
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What is the formula for density? |
p= m/v or kg/m³ or g/cm³ |
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Why do things float? |
Objects whose molecules are loosely packed tend to float as they are less dense than water. |
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Whh do things sink? |
Objects whose molecules are tightly/closely packed together tend to sink as they are denser when compared to water. |
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Examples of things that float |
Hot air, plastic material, and wood |
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Examples of things that sink |
Metal, glass , rocks , phone, spoon |
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What are tow things that affect density? |
Mass and volume |
