Science Chapter 2 Flashcards
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Questions and Answers

What is matter?

Anything that has a mass and takes up space.

What are the characteristics of matter and volume?

All matter takes up space. The amount of space taken up, or occupied by an object is known as the object's volume.

What is an object's volume?

The amount of space taken up by an object.

What unit(s) is the volume of a liquid measured in?

<p>Liters (L) and milliliters (mL).</p> Signup and view all the answers

What do you use to measure the volume of a liquid in a lab?

<p>Graduated cylinder.</p> Signup and view all the answers

What is a meniscus?

<p>The curve on the surface of a liquid.</p> Signup and view all the answers

What part of the meniscus do you look at to measure the volume of a liquid?

<p>The bottom of the curve.</p> Signup and view all the answers

How do you express the volume of a regularly shaped object?

<p>In cubic units.</p> Signup and view all the answers

What is the formula for finding the volume of a regularly shaped object?

<p>L x W x H.</p> Signup and view all the answers

How do you find the volume of an irregularly shaped object?

<p>By putting the object in water and measuring water displacement.</p> Signup and view all the answers

If the water displacement is 1 mL after adding an object, what is the volume of that object?

<p>1 cubic centimeter.</p> Signup and view all the answers

What is mass?

<p>The amount of matter in an object.</p> Signup and view all the answers

Does the mass of an object change when located in a different place?

<p>False</p> Signup and view all the answers

How can you change the mass of an object?

<p>By changing the amount of matter that makes up the object.</p> Signup and view all the answers

Mass does not change with location.

<p>True</p> Signup and view all the answers

What instrument measures mass?

<p>A balance.</p> Signup and view all the answers

What are the units of mass?

<p>Kg, g, mg.</p> Signup and view all the answers

What is weight?

<p>Measures the gravitational force exerted on an object.</p> Signup and view all the answers

Can weight change?

<p>True</p> Signup and view all the answers

Does weight change with location?

<p>True</p> Signup and view all the answers

What instrument measures weight?

<p>A spring scale.</p> Signup and view all the answers

What is the unit for weight?

<p>Newtons (N).</p> Signup and view all the answers

What is inertia?

<p>Tendency of an object to resist a change in motion.</p> Signup and view all the answers

An object will stay at rest until something causes the object to move.

<p>True</p> Signup and view all the answers

A moving object will keep moving at the same speed and in the same direction unless something acts on the object to change its speed or direction.

<p>True</p> Signup and view all the answers

How does mass impact inertia?

<p>An object that has a large mass is harder to get moving and harder to stop than an object with less mass because the larger mass has greater inertia.</p> Signup and view all the answers

What is volume?

<p>The amount of space an object takes up.</p> Signup and view all the answers

What are physical properties?

<p>A characteristic of a substance.</p> Signup and view all the answers

What is density?

<p>Mass divided by volume.</p> Signup and view all the answers

What is a physical change?

<p>A change of matter that does not produce a new kind of substance.</p> Signup and view all the answers

What is a chemical property?

<p>A property of matter that describes how a substance changes into new substances.</p> Signup and view all the answers

What is a chemical change?

<p>Change in a substance that produces a new substance with new and different properties.</p> Signup and view all the answers

Study Notes

Matter and Volume

  • Matter is anything that possesses mass and occupies space.
  • All matter has volume, which is the specific amount of space occupied by an object.

Measuring Volume

  • The volume of liquids is expressed in liters (L) and milliliters (mL).
  • A graduated cylinder is commonly used in laboratories to measure liquid volume.
  • The meniscus, a curved surface of a liquid, should be read at the bottom of the curve to obtain an accurate measurement.

Volume of Objects

  • Regularly shaped objects have their volume expressed in cubic units.
  • The formula for calculating the volume of a regularly shaped object is Length × Width × Height (L × W × H).
  • The volume of irregularly shaped objects can be determined by water displacement methods.

Mass

  • Mass indicates the quantity of matter contained in an object and remains constant regardless of location.
  • To change the mass of an object, the amount of matter it contains must be altered.
  • Mass is measured using a balance and is quantified in kilograms (kg), grams (g), or milligrams (mg).

Weight

  • Weight measures the gravitational force acting on an object and varies with its mass and location.
  • An object’s weight decreases on the moon due to lower gravitational force.
  • Weight is measured using a spring scale and is expressed in newtons (N).

Inertia

  • Inertia is the property of matter that causes an object to resist changes in its state of motion.
  • An object at rest remains so until an external force acts upon it; conversely, a moving object maintains its speed and direction unless influenced by another force.
  • Larger mass results in greater inertia, making it more difficult to move or stop compared to smaller mass objects.

Properties of Matter

  • Physical properties are characteristics inherent to a substance.
  • Density is defined as mass divided by volume.
  • Physical changes refer to alterations in matter that do not create new substances.
  • Chemical properties describe how substances transform into different substances.
  • Chemical changes result in the formation of new substances with distinct properties.

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Test your knowledge on the fundamentals of matter with these flashcards covering key definitions and characteristics. Ideal for students looking to reinforce their understanding of volume and its measurement in science. Perfect for quick review before exams.

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