S8P4 Waves

The table shows the wavelengths of different colors of visible light. Which of the color choices transmits the MOST energy?

• blue

• green

• violet

• red

This lens is an example of what type of lens?

• concave

• convex

• refracting

• oval

Jhadin claims that waves cannot travel through the vacuum of space. Caleb argues that Jhadin is incorrect. Which statement should Caleb use as evidence?

• Matter travels from the sun to Earth.

• Sound waves travel from the sun to Earth.

• Longitudinal waves travel from the sun to Earth.

• Electromagnetic radiation travels from the sun to Earth.

Which of the following statements is false?

• A convex lens refracts light.

• A concave lens refracts light.

• We see objects because they absorb visible light waves.

• We see objects because they reflect visible light waves.

In which medium do sound waves travel slowest?

• air

• ice

• solid steel

• liquid water

____________ is the number of wavelengths that pass a point in a given time.

• Amplitude

• Wavelength

• Frequency

• Rarefaction

An engineer is designing a mobile phone. The mobile phone must meet the following criteria. It must allow people to communicate over large distances. It must be safe for use around humans. It should not use too much energy. Which type of waves would be BEST for use in the engineer's design?

• X-Rays

• Microwaves

• Gamma rays

• Ultraviolet rays

If you strike a drum gently and then strike it harder, the sound gets louder because

• you are increasing its frequency.

• you are increasing its wavelength.

• you are increasing its amplitude.

• you are increasing its resting position.

An echo heard in a canyon and an image seen in a mirror are BOTH produced by which process?

• diffraction of waves

• refraction of waves

• reflection of waves

• absorption of waves

This lens is an example of what type of lens?

• concave

• convex

• hourglass

• refracting