Question

match the vocabulary term with the correct definition:
when you change which fm radio station you are listening to it is because the ______ of the signal changes.
a clear window is ______ so you can see the street outside without the light being scattered.
a bathroom window that lets light in but hides details of people on the other side is ______.
a heavy curtain is ______ because it does not let any light pass through into the room.
you can see your face in a calm pond because of ______ off the water’s surface.
a pencil looks bent in a cup of water because of ______ when light moves from water into air.
radio and x - ray waves are both types of ______ that travel through space without needing air.
when a loud drum is hit harder, the ______ of the sound wave increases so the drum sounds louder

Explanation:

Step 1: Analyze the FM radio station change

FM radio stations are differentiated by their frequency. So the term related to the change in FM radio station signal is frequency.

Step 2: Analyze the clear window

A clear window allows light to pass through without scattering and one can see clearly through it. This property is called transparency, so the clear window is transparent.

Step 3: Analyze the bathroom window

A bathroom window that lets light in but hides details is translucent. Translucent materials allow light to pass through but not detailed images.

Step 4: Analyze the heavy curtain

A heavy curtain does not allow light to pass through at all. Materials that do not allow light to pass through are called opaque.

Step 5: Analyze the calm pond and seeing face

When light hits a smooth surface like the surface of a calm pond, it bounces back (reflection) and this reflection allows us to see our face.

Step 6: Analyze the bent pencil in water

When light travels from one medium (water) to another (air), it bends. This bending of light is called refraction, which makes the pencil look bent.

Step 7: Analyze radio and X - ray waves

Radio waves and X - ray waves are part of the electromagnetic spectrum. Electromagnetic waves can travel through a vacuum (space) without a medium like air.

Step 8: Analyze the loud drum hit harder

The loudness of a sound is related to the amplitude of the sound wave. When a drum is hit harder, the amplitude of the sound wave produced increases, making the drum sound louder.

Answer:

1. When you change which FM radio station you are listening to it is because the \(\boldsymbol{\text{frequency}}\) of the signal changes.
2. A clear window is \(\boldsymbol{\text{transparent}}\) so you can see the street outside without the light being scattered.
3. A bathroom window that lets light in but hides details of people on the other side is \(\boldsymbol{\text{translucent}}\).
4. A heavy curtain is \(\boldsymbol{\text{opaque}}\) because it does not let any light pass through into the room.
5. You can see your face in a calm pond because of \(\boldsymbol{\text{reflection}}\) off the water's surface.
6. A pencil looks bent in a cup of water because of \(\boldsymbol{\text{refraction}}\) when light moves from water into air.
7. Radio and X - ray waves are both types of \(\boldsymbol{\text{electromagnetic waves}}\) that travel through space without needing air.
8. When a loud drum is hit harder, the \(\boldsymbol{\text{amplitude}}\) of the sound wave increases so the drum sounds louder.