Unit 2

What is a physical property?

• A characteristic of a substance that changes the identity of the substance when observed or measured.

• A characteristic of a substance that can be observed or measured without changing the identity of the substance.

• A characteristic of a substance that cannot be observed or measured.

• A characteristic of a substance that can only be observed with special instruments.

Which of the following is an example of a physical property?

• The ability to conduct electricity

• The temperature at which a substance melts

• The mass of a substance

• All of the above

How can physical properties be categorized?

• Can be measured and cannot be observed

• Can be observed and cannot be measured

• Can neither be measured nor observed

• Can be measured and can be observed

What physical property is represented by the terms "Blue," "Green," and "Yellow"?

• Texture

• Color

• Shape

• Size

Which of the following is a physical property related to how an object feels to the touch?

• Weight

• Hardness

• Texture

• Flexibility

What is the ability of a stretched material to return to its original shape and size when the forces causing the stretching are removed called?

• Plasticity

• Brittleness

• Elasticity

• Opacity

Which of the following materials does not allow light to pass through at all?

• Transparent

• Translucent

• Opaque

• Elastic

If a material allows electricity to flow through it, it is known as a:

• Magnetic material

• Insulator

• Conductor

• Non-magnetic material

What is an intensive property?

• A property that depends on the amount of matter in a sample.

• A property that depends only on the type of matter in a sample and not on the amount.

• A property that changes when the amount of matter in a sample changes.

• A property that can only be observed when matter is in a large quantity.

Which of the following is an example of an extensive property?

• Boiling point

• Color

• Mass

• Temperature