1.
These waves travel perpendicular to the direction of the wave.
Correct Answer
B. Transverse
Explanation
Transverse waves are characterized by the oscillation of particles perpendicular to the direction of wave propagation. In other words, the motion of the particles is perpendicular to the direction in which the wave is traveling. This is in contrast to longitudinal waves, where the particles oscillate parallel to the direction of wave propagation. Therefore, the statement "These waves travel perpendicular to the direction of the wave" accurately describes transverse waves. Combination waves refer to a combination of transverse and longitudinal motion, but the given statement does not mention any combination.
2.
These waves travel parallel to the direction of the wave.
Correct Answer
A. Longitudinal
Explanation
Longitudinal waves are waves in which the particles of the medium vibrate parallel to the direction of wave propagation. This means that the displacement of the particles is in the same direction as the wave is traveling. In contrast, transverse waves are waves in which the particles of the medium vibrate perpendicular to the direction of wave propagation. Therefore, longitudinal waves are the correct answer because they travel parallel to the direction of the wave.
3.
These waves are both transverse and longitudinal.
Correct Answer
A. Combination
Explanation
This answer suggests that the waves being referred to in the question exhibit characteristics of both transverse and longitudinal waves. Transverse waves are characterized by particles oscillating perpendicular to the direction of wave propagation, while longitudinal waves are characterized by particles oscillating parallel to the direction of wave propagation. Therefore, a combination of both transverse and longitudinal characteristics would imply that the particles in these waves oscillate both perpendicular and parallel to the direction of wave propagation.
4.
This kind of wave can ONLY travel through matter.
Correct Answer
B. Mechanical
Explanation
Mechanical waves require a medium to travel through, such as a solid, liquid, or gas. They cannot travel through a vacuum or empty space. On the other hand, electromagnetic waves can travel through both matter and empty space. Since the given wave can only travel through matter, it must be a mechanical wave.
5.
This kind of wave can travel through matter and through empty space.
Correct Answer
B. Electromagnetic
Explanation
Electromagnetic waves are able to travel through both matter and empty space. This is because electromagnetic waves consist of oscillating electric and magnetic fields, which do not require a medium for propagation. In contrast, mechanical waves, such as sound waves, require a medium (such as air, water, or solids) to travel through. Therefore, the correct answer is electromagnetic.
6.
An example of a transverse mechanical wave is
Correct Answer
C. A flag waving in the breeze
Explanation
A flag waving in the breeze is an example of a transverse mechanical wave because it exhibits the characteristic of oscillation perpendicular to the direction of wave propagation. The motion of the flag as it waves back and forth is similar to the motion of particles in a transverse wave, such as a wave on a string or electromagnetic waves. In this case, the flag moves up and down while the wave moves horizontally along its length. Sound waves and water waves, on the other hand, are examples of longitudinal waves where the oscillation occurs parallel to the direction of wave propagation.
7.
This kind of wave can travel in a transverse, longitudinal, or combination motion.
Correct Answer
A. Mechanical
Explanation
Mechanical waves are waves that require a medium to travel through, such as air, water, or solids. These waves can travel in different ways, including transverse motion (where particles move perpendicular to the direction of the wave) and longitudinal motion (where particles move parallel to the direction of the wave). Therefore, mechanical waves can travel in a transverse, longitudinal, or combination motion. Electromagnetic waves, on the other hand, do not require a medium and can only travel in a transverse motion.
8.
This kind of wave can only travel in a transverse motion.
Correct Answer
B. Electromagnetic
Explanation
Electromagnetic waves are the only type of waves that can travel in a transverse motion. Mechanical waves, on the other hand, require a medium to propagate and can only travel in a longitudinal motion. Electromagnetic waves, such as light and radio waves, do not require a medium and can travel through empty space. They consist of oscillating electric and magnetic fields that are perpendicular to the direction of wave propagation, making them transverse waves. Therefore, the correct answer is electromagnetic.
9.
An example of an electromagnetic transverse wave is
Correct Answer
C. Light Waves
Explanation
Light waves are an example of electromagnetic transverse waves because they consist of oscillating electric and magnetic fields that are perpendicular to the direction of wave propagation. Unlike sound waves, which are mechanical longitudinal waves that require a medium to travel through, light waves can propagate through a vacuum. Similarly, water waves are also mechanical waves that require a medium (water) to travel through. Therefore, light waves are the only option that fits the description of an electromagnetic transverse wave.
10.
An example of an electromagnetic longitudinal wave is
Correct Answer
A. None. Electromagnetic waves can only travel in a transverse motion.
Explanation
Electromagnetic waves consist of electric and magnetic fields oscillating perpendicular to each other and to the direction of wave propagation. This transverse motion allows electromagnetic waves to travel through a vacuum or a medium. Therefore, it is not possible for electromagnetic waves to exist in a longitudinal motion where the oscillations occur parallel to the direction of wave propagation. Sound waves and water waves, on the other hand, are examples of longitudinal waves where the particles of the medium move in the same direction as the wave.
11.
An example of a combination mechanical wave is
Correct Answer
A. Water Waves
Explanation
Water waves are an example of a combination mechanical wave because they exhibit both longitudinal and transverse motion. As water waves propagate, the particles of water move in a circular motion, creating both compressions and rarefactions (longitudinal motion) as well as oscillations up and down (transverse motion). This combination of motions makes water waves a combination mechanical wave. Sound waves, on the other hand, are purely longitudinal waves, while light waves are electromagnetic waves and do not involve any mechanical motion.
12.
An example of an electromagnetic combination wave is
Correct Answer
B. None. Electromagnetic waves can only travel in a transverse motion.
Explanation
The correct answer is "None. Electromagnetic waves can only travel in a transverse motion." This means that electromagnetic waves cannot exhibit both transverse and longitudinal motion simultaneously. Water waves and sound waves, on the other hand, are examples of waves that can exhibit both transverse and longitudinal motion.
13.
An example of a mechanical longitudinal wave is
Correct Answer
C. Sound Waves
Explanation
Sound waves are an example of mechanical longitudinal waves because they require a medium (such as air, water, or solids) to propagate. In a sound wave, particles of the medium vibrate back and forth in the same direction as the wave is traveling. This creates areas of compression and rarefaction, resulting in the characteristic pattern of high and low pressure regions. Therefore, sound waves exhibit the properties of mechanical waves, making them a correct answer choice in this context.
14.
Solids, liquids, and gases are
Correct Answer
B. The three states of matter
Explanation
This answer is correct because solids, liquids, and gases are indeed the three states of matter. Matter can exist in these three forms depending on the arrangement and movement of its particles. Solids have a fixed shape and volume, liquids have a fixed volume but take the shape of their container, and gases have neither a fixed shape nor volume.
15.
Sound travels the fastest in which state of matter?
Correct Answer
C. Solids
Explanation
Sound travels the fastest in solids because the particles in a solid are closely packed together, allowing sound waves to travel more efficiently. In liquids, the particles are not as closely packed, leading to a slower transmission of sound. In gases, the particles are even further apart, resulting in the slowest speed of sound transmission.
16.
Sound travels the slowest through which state of matter?
Correct Answer
A. Gases
Explanation
Sound travels the slowest through gases because the particles in a gas are more spread out compared to solids and liquids. This means that there are fewer particles for sound waves to interact with, resulting in a slower propagation of sound. In solids, the particles are tightly packed, allowing sound waves to travel quickly through the medium. Liquids also have particles that are closer together than gases, allowing sound waves to propagate faster than in gases.