Which of the following provides an example of sound waves being reflected?

A noise that produces an echo when it bounces off a distant wall

Hearing music being played by a neighbor's stereo through a wall

Water in a glass vibrating because of the sound of thunder

The sound of a distant train getting louder as it approaches an observer

A student places a pencil in a glass of water and observes that the pencil appears to be broken. Which of these provides the best explanation for why the pencil appears broken?

Light rays are bent by the water in the glass.

The pencil absorbs all the light rays that hit it.

Water reflects light rays away from the pencil.

The surface of the water reflects light rays.

Sound is able to travel faster in solids than in air because the molecules in a solid are

closer together than air molecules

more easily moved than air molecules

moving faster than air moleculesmoving faster than air molecules

How does a concave lens differ from a convex lens?

A convex lens has a thick center and thin edges, a concave lens has a thin center and thicker edges

A convex lens is another way to describe a plane mirror; a concave lens is curved

A concave lens is curved inward on both sides; a convex lens is on only one side

A convex lens has a thin center and thick edges. a concave lens has a thick center and thinner edges

What is the order of the path of light in the human eye?

cornea, pupil, lens, retina, optic nerve, brain

lens,cornea, pupil, retina, optic nerve, brain

pupil, lens, retina, optic nerve, cornea, brain

brain, pupil, lens, retina, optic nerve, cornea,

Which of the following is true of a concave mirror?

An inverted image will be formed if the object distance is greater than the focal length.

It will never form a real image.

An object can be magnified if placed at F.

Ch. 4 Waves Test 8th Grade

Authored by D Olguin

Physics

8th Grade

NGSS covered

Used 31+ times

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Ch. 4 Waves Test 8th Grade

Bending of wave caused by moving from one medium to another

When two or more waves overlap and combine to form a new wave

The highest point of a wave is called the ___________?

The lowest point, or dip, in the wave is called its _______ ?

The distance between two corresponding parts of a wave is the wave's ________.

Waves combine to produce a smaller or zero-amplitude wave in a process called __________.

How often a wave occurs is the wave's ____________.

The less energy a wave has, the smaller it's __________________.

In a vacuum, all electromagnetic waves have the same

Which of the following waves has the highest frequency?

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