Which property is unique to electromagnetic waves?(1 point)
Responses
They can shake structures on Earth.
They can shake structures on Earth.
They can travel on the surface of water.
They can travel on the surface of water.
They can be controlled by the pull of gravity.
They can be controlled by the pull of gravity.
They can travel in a vacuum.
They can travel in a vacuum.
Which statement correctly describes a property of sound waves?(1 point)
Responses
They can travel through outer space.
They can travel through outer space.
They have two kinds of movement.
They have two kinds of movement.
They require particles to transfer energy.
They require particles to transfer energy.
They are generated by movements in Earth’s crust
They require particles to transfer energy.
Which type of wave is most affected by gravity from the Sun and the moon?(1 point)
Responses
water
water
sound
sound
electromagnetic
electromagnetic
seismic
How are seismic waves and sound waves similar?(1 point)
Responses
They are both part of the electromagnetic spectrum.
They are both part of the electromagnetic spectrum.
They can cause vibrations or motions in the matter with which they interact.
They can cause vibrations or motions in the matter with which they interact.
They are able to travel through a medium and through a vacuum.
They are able to travel through a medium and through a vacuum.
They can cause significant damage as part of earthquakes.
They can cause vibrations or motions in the matter with which they interact.
Which type of wave is used in sonar to detect objects?(1 point)
Responses
water
water
electromagnetic
electromagnetic
seismic
seismic
sound
sound
The correct answer is: They can travel in a vacuum.
Electromagnetic waves are characterized by the ability to travel through empty space or a vacuum. This property is unique to electromagnetic waves and distinguishes them from other types of waves, such as mechanical waves (like sound waves) that require a medium to propagate.
To determine the correct answer, you could eliminate the other options by understanding their properties. For example, option 1 states that electromagnetic waves can shake structures on Earth. While it is true that electromagnetic waves can interact with matter and cause effects, this property is not unique to electromagnetic waves and can be observed with other types of waves as well.
Similarly, option 2 states that electromagnetic waves can travel on the surface of water. While this is true for certain types of waves like water waves, it is not a unique property of electromagnetic waves.
Option 3 states that electromagnetic waves can be controlled by the pull of gravity. While gravitational forces can interact with electromagnetic waves, it is not a unique property and is applicable to other types of waves as well.
Therefore, the correct option is option 4, which states that electromagnetic waves can travel in a vacuum. This is because electromagnetic waves do not require a medium for propagation and can travel through empty space.