Let's break down the question and come up with the correct pair of options based on our understanding of the behavior of sound and light.
We need to fill in the blanks for the statement "Unlike ____(1)___, light is able to travel through a ____(2)___."
First, let's understand the properties of sound and light:
1. Sound:
- Sound is a mechanical wave, which means it requires a material medium (such as a solid, liquid, or gas) to travel through.
- Sound cannot travel through a vacuum because there is no medium to facilitate the transmission of sound waves.
2. Light:
- Light is an electromagnetic wave.
- Unlike sound, light does not require a medium and can travel through a vacuum (the emptiness of space). This is why we can see light from the sun and stars, even though space is a vacuum.
Given these properties, let's evaluate the options:
1. Options 1: sound; 2: vacuum
- This reads: "Unlike sound, light is able to travel through a vacuum."
- This statement is correct because sound cannot travel through a vacuum while light can.
2. Options 1: sound; 2: solid
- This reads: "Unlike sound, light is able to travel through a solid."
- This statement is incorrect because both sound and light can travel through solids.
3. Options 1: electromagnetic waves; 2: solid
- This reads: "Unlike electromagnetic waves, light is able to travel through a solid."
- This statement is incorrect because light itself is an electromagnetic wave, and electromagnetic waves can travel through solids.
4. Options 1: electromagnetic waves; 2: vacuum
- This reads: "Unlike electromagnetic waves, light is able to travel through a vacuum."
- This statement is incorrect because light is an electromagnetic wave, and both can travel through a vacuum.
Therefore, the correct matching pair of options is:
1: sound; 2: vacuum
So the completed statement is: "Unlike sound, light is able to travel through a vacuum."
