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Section 1

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Sound is an example of a:

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Physics

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Last updated

6 years ago

Date created

Mar 1, 2020

Cards (45)

Section 1

(45 cards)

Sound is an example of a:

Front

Longitudinal wave

Back

Ninety percent of light incident on a certain piece of glass passes through it. How much light passes through two pieces of this glass?

Front

80%

Back

When a pendulum clock is taken from sea level to the top of a high mountain, it will:

Front

Lose time.

Back

You are designing hand-held stereo viewers for a children's book. To produce the perception of 3-D objects in the eyes of your readers, you must ensure that polarized filters allow that:

Front

The left eye sees only the left view and the right eye sees only the right view.

Back

The Tacoma Narrows Bridge collapsed due to:

Front

Resonance

Back

The effect that we call a mirage has most to do with:

Front

Refraction

Back

The critical angle for a light from the bottom of a swimming pool shining upward toward the pool's surface is the angle:

Front

Where light is refracted so it just skims the pool surface.

Back

The time needed for a wave is to make one complete cycle is its:

Front

Period

Back

A singer shattering crystal glass with her voice is a demonstration of:

Front

Resonance

Back

The spectrum produced by a prism or a raindrop is evidence that the average speed of light in the material depends on the light's:

Front

Color

Back

An ideal polarizing filter will transmit 50% of nonpolarized light incident on it. How much is light transmitted by two ideal polarizing filters that are oriented with their axes parallel to each other?

Front

50%

Back

Because of absorption, a polarizing filter will actually transmit 40% of incident nonpolarized light. Two polarizing filters with their axes aligned will transmit:

Front

40%

Back

If you double the frequency of a vibrating object, its period:

Front

Halves

Back

It is difficult to see the roadway from a car on a rainy night because the road surface:

Front

That is normally a diffuse reflector when dry becomes a mirror surface when wet.

Back

Noise-canceling earphones are an example of:

Front

Destructive interference

Back

The source of all wave motion is a:

Front

Vibration

Back

If two polarizing filters are held with their polarization axes at right angles to each other, the amount of light transmitted compared to when their axes are parallel is:

Front

Zero

Back

The law of reflection says that:

Front

The angle of reflection from a mirror equals the angle of incidence.

Back

When a light beam emerges from water into air, the average light speed:

Front

Increases

Back

If you are standing equally distant from two television sets that are emitting the exact same sound waves, the sound:

Front

Is louder because the waves constructively interfere.

Back

A longitudinal wave lacks which of the following properties?

Front

Speed, frequency, wavelength, amplitude ALL OF THE ABOVE

Back

Different colors of light travel at different speeds in a transparent medium. In a vacuum, different colors of light travel at:

Front

The same speed

Back

While jet-skiiing on a lake, you look back and notice a V-shaped pattern made by overlapping a wave crests. This pattern is known as a:

Front

Bow wave

Back

Refraction is caused by:

Front

Different wave speeds.

Back

The distance between successive identical parts of a wave is called its:

Front

Wavelength

Back

A beam of light emerges from water into air at an angle. The beam is bent:

Front

Away from the normal.

Back

What is the wavelength of an electromagnetic wave that has the frequency of 1 Hz?

Front

More than 1 m

Back

A person standing waist-deep in a swimming pool appears to have short legs because of light:

Front

Refraction

Back

A sound wave that has a higher frequency has a wavelength that is:

Front

Shorter

Back

A wave created by shaking a rope up and down is called a:

Front

Transverse wave

Back

The Hertz is a:

Front

Unit of frequency

Back

You can hear noises a long distance away over water at night because:

Front

Of refraction of sound in air.

Back

What is the frequency of an electromagnetic wave having a wavelength of 300,000 km?

Front

1 Hz

Back

In which one of the following does sound travel the fastest?

Front

Ice

Back

During a single period, the distance traveled by a wave is:

Front

One wavelength

Back

When you throw a ball at the floor at an angle of 37 degrees to the normal, you observe that its movement follows the law of reflection. This means that the ball bounces away at an angle of ________ to the normal.

Front

37 degrees

Back

If the sounding board were left out of a music box, the music box would:

Front

Make little "plinks" that you could hardly hear.

Back

Where can you touch a standing wave on a rope without disturbing the wave?

Front

At a node

Back

You dip your finger repeatedly into water and make waves. If you dip your finger more frequently, the wavelength of the waves:

Front

Shortens

Back

Perception of depth is given by:

Front

The combination of views in the eye-brain system.

Back

Sound travels faster in air if the air is:

Front

Warm

Back

Compared to the speed of light, sound travels:

Front

Slower

Back

Some of a wave's energy is always being dissipated as heat. In time, this will reduce the wave's:

Front

Amplitude

Back

Sound waves cannot travel in:

Front

A vacuum

Back

If an electron vibrates up and down 1000 times in each second, it generates an electromagnetic wave having a:

Front

frequency of 1000 Hz

Back