Describe the functions of the three main sections of the ear.

The outer ear collects sound waves and funnels them into the ear canal and to the eardrum, which then vibrates. The middle ear transmits the waves, or vibrations, inward by means of three small bones. The inner ear contains the liquid-filled cochlea, which is lined with hair like cells that sway as a result of the vibrations. Nerves carry the information to the brain.

The outer ear amplifies electrical signals, the middle ear produces sound waves, and the inner ear filters out background noise before sending signals to the brain.

The outer ear creates sound waves, the middle ear absorbs them, and the inner ear stores them for later use.

The outer ear detects light, the middle ear processes taste, and the inner ear controls balance only.

Fill in the blank: Matter is ____________.

anything that has mass and takes up space

a type of energy that moves in waves

something that cannot be seen or touched

Which of the following best describes the characteristics of solids?

B) Definite shape and definite volume; particles closely packed in geometric arrangement

A) Indefinite shape and definite volume; particles can move past each other

C) Indefinite shape and indefinite volume; particles spread out

D) Definite shape and indefinite volume; particles loosely packed

Which of the following best describes the characteristics of liquids?

Indefinite shape and definite volume; particles can move past each other

Definite shape and definite volume; particles closely packed in geometric arrangement

Indefinite shape and indefinite volume; particles spread out

Definite shape and indefinite volume; particles loosely packed

Which of the following best describes the characteristics of gases?

Indefinite shape and indefinite volume; particles spread out

Definite shape and definite volume; particles closely packed in geometric arrangement

Indefinite shape and definite volume; particles can move past each other

Definite shape and indefinite volume; particles loosely packed

Fill in the blank: The melting point is the ____________.

temperature at which a solid melts

temperature at which a liquid boils

temperature at which a gas condenses

temperature at which a liquid freezes

Fill in the blank: The freezing point is the ____________.

temperature at which a liquid freezes

temperature at which a liquid boils

temperature at which a gas condenses

Fill in the blank: The boiling point is the ____________.

temperature at which liquid begins to vaporize

temperature at which solid melts

temperature at which gas condenses

temperature at which liquid freezes

Fill in the blank: The condensation point is the ____________.

temperature at which a gas condenses

temperature at which a solid melts

temperature at which a liquid boils

temperature at which a solid sublimates

Fill in the blank: Fluid is ____________.

anything that flows; liquid or gas

a solid that cannot change shape

Fill in the blank: Buoyancy is the ____________.

ability of a fluid to exert an upward force on an object immersed in it

tendency of objects to sink in a fluid

force that pulls objects downward in a fluid

process of dissolving solids in a liquid

Fill in the blank: Pascal’s Principle states that ____________.

pressure applied to a fluid is transmitted unchanged throughout the fluid

the volume of a gas is inversely proportional to its pressure

energy cannot be created or destroyed, only transformed

the buoyant force on an object is equal to the weight of the fluid displaced

Fill in the blank: Bernoulli’s principle states that as the velocity of a fluid increases, ____________.

the pressure exerted by the fluid decreases

the density of the fluid increases

the temperature of the fluid increases

the viscosity of the fluid increases

Fill in the blank: Boyle’s Law states that as the volume of the gas decreases, ____________, provided the temperature does not change.

the pressure of a gas increases

the temperature of a gas increases

the pressure of a gas decreases

Fill in the blank: Archimedes Principle states that the buoyant force on an object is equal to ____________.

the weight of fluid displaced by the object

Which of the following best describes the differences among solutions, colloids, and suspensions?

Solutions have particles that are evenly distributed and do not settle, colloids have intermediate-sized particles that do not settle, and suspensions have large particles that settle out over time.

Solutions and colloids both have particles that settle out, while suspensions do not.

Colloids and suspensions both have particles that are evenly distributed, while solutions do not.

Suspensions have the smallest particles, colloids have the largest, and solutions are intermediate.

Atomic mass: ________

composed mostly of protons and neutrons in the nucleus; aka mass number

the number of electrons in an atom

the number of energy levels in an atom

Atomic number: ________

the number of protons in an atom; identifies the element

the number of neutrons in an atom; determines isotope

the sum of protons and neutrons; atomic mass

the number of electrons in an atom; determines charge

atoms of the same element that have different numbers of neutrons

atoms of different elements that have the same number of neutrons

atoms of the same element that have different numbers of protons

atoms of different elements that have the same number of protons

Average atomic mass: ________

weighted average mass of an element’s isotopes

sum of protons and neutrons in an atom

mass of the most abundant isotope

Physical Science Part 2 Exam Study Guide

Authored by Lauren Johnson

Science

8th Grade

NGSS covered

Used 9+ times

Physical Science Part 2 Exam Study Guide

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a lens? Fill in the blank: A lens is a __________ material with a curved surface that reflects light rays.

transparent

opaque

metallic

reflective

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a convex lens do? Fill in the blank: A convex lens __________ light rays to form images.

focuses

scatters

blocks

reflects

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A concave lens is:

a lens that is thicker at the center than at the edges

a lens that is thinner at the center than at the edges

a lens that converges light rays

a lens that forms only real images

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fill in the blank: The ______ is the inner lining of the eye converting light into electrical signals that the brain interprets; it contains rods and cones.

Retina

Cornea

Lens

Iris

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fill in the blank: The ______ is the colored ring of muscle that controls the size of the pupil.

Iris

Cornea

Retina

Lens

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fill in the blank: The ______ carries signals generated by rods and cones to your brain.

Optic nerve

Cornea

Retina

Lens

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Fill in the blank: The ______ is the transparent covering on the eyeball where light enters the eye.

Cornea

Retina

Lens

Iris

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Physical Science Part 2 Exam Study Guide

What is a lens? Fill in the blank: A lens is a __________ material with a curved surface that reflects light rays.

What does a convex lens do? Fill in the blank: A convex lens __________ light rays to form images.

A concave lens is:

Fill in the blank: The ______ is the inner lining of the eye converting light into electrical signals that the brain interprets; it contains rods and cones.

Fill in the blank: The ______ is the colored ring of muscle that controls the size of the pupil.

Fill in the blank: The ______ carries signals generated by rods and cones to your brain.

Fill in the blank: The ______ is the transparent covering on the eyeball where light enters the eye.

Where is the image formed in the eye?

Fill in the blank: A telescope uses ______ and lenses to gather more light from far away objects than the eye does.

Fill in the blank: A microscope uses two ______ lenses with short focal lengths to magnify small, close objects.

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