Waves and Their Applications
5 months ago
mmillermoralez
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• Question 1
30 seconds
Q.

Students are modeling waves by shaking a rope up and down. We know this is a wave because–

the rope is made up of strands of cotton threads which are braided together.

it has a repeating pattern with a specific wavelength, frequency, and amplitude.

the rope stops moving when the students stop shaking it up and down.

the student can change the distance the rope moves by moving the rope further up or down.

• Question 2
30 seconds
Q.

Which of the waves is carrying the greatest amount of energy?

• Question 3
30 seconds
Q.

The waves that carry the most energy are the waves that–

move into a new medium.

are closest together.

move the most slowly.

have the greatest amplitude.

• Question 4
30 seconds
Q.

The table below provides simplified data on the relationship between the amplitude of a wave and the energy the wave carries. Based on the pattern in the table, a wave with an amplitude of 4, would carry how much energy?

4

16

32

80

• Question 5
30 seconds
Q.

Which of the following waves has the highest frequency?

• Question 6
30 seconds
Q.

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

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

Water in a glass vibrating because of the sound of thunder

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

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

• Question 7
30 seconds
Q.

Automobile engineers create quieter cars and trucks by designing acoustic glass that–

transmits sounds.

reflects sounds.

absorbs sounds.

amplifies sounds.

• Question 8
30 seconds
Q.

A ringing bell makes noise inside a glass jar. Then the air is removed from the glass jar using a vacuum pump. When all of the air leaves the jar, the sound of the ringing bell can no longer be heard.

Which of the following best explains why the students can no longer hear the bell?

Removing the air from the jar allows the bell to ring only very softly.

The air in the jar provides a medium for the sound to travel through.

The sound in the empty jar is reflected off the inside of the glass sides.

The difference in pressure inside and outside the glass jar is too great.

• Question 9
30 seconds
Q.

Geologists can learn about rock layers beneath the surface of the earth using sound waves. They use a vibration truck to send sound waves into the ground. A measuring truck has special microphones, called geophones that pick up sounds.

This method for learning about rock layers depends on what characteristic of sound waves?

Sound waves can travel through and reflect off of rock layers.

Sound waves require energy, such as electricity, to generate them.

Sound waves can travel for an unlimited distance from the source that creates them.

Sound waves are absorbed by dense solids and reflect off liquids.

• Question 10
30 seconds
Q.

Music studios use “soundproof” recording rooms. The walls of these rooms are designed in such a way that the only sounds that reach the microphones inside the room are sounds from inside the room. The most important characteristic in designing the soundproof room is to create walls that–

allow communication between people inside and outside the room.

reflect sounds around the room to alter their properties.

allow sounds to move easily from one place to another.

absorb sounds and prevent them from passing through.

• Question 11
30 seconds
Q.

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?

The pencil absorbs all the light rays that hit it.

Water reflects light rays away from the pencil.

Light rays are bent by the water in the glass.

The surface of the water reflects light rays.

• Question 12
30 seconds
Q.

The illustration shows the path of light leaving a laser pointer.

At what point is the light from the laser being absorbed?

A

B

C

D

• Question 13
30 seconds
Q.

The distance from the Earth to the Moon can be accurately calculated by pointing high-powered lasers onto the Moon’s surface. The time it takes for the light to return is used to find the distance. To make this possible, astronauts on the Apollo 11 Moon mission had to place a device on the Moon that would –

store the laser light for future use.

bounce the laser light back to Earth.

allow the laser light to pass through.

change the frequency of the laser light.

• Question 14
30 seconds
Q.

Which of the following is the best example of an object absorbing light?

A black sweater in the sun

A clean window in the sun

A curved mirror in the sun

A long shadow in the sun

• Question 15
30 seconds
Q.

Solar panels generate electricity using photovoltaic cells that receive sunlight.

To protect these cells from moisture while allowing sunlight to pass through, engineers must design a cover for the solar panel that is –