light and sound revision

The arrow in the diagram below shows a point on a light wave that stops as it interacts with matter. Which type of interaction does the arrow represent?

• Absorption

• Reflection

• Refraction

• Transmission

Which interactions of light with matter are taking place in the picture below?

• diffraction, reflection, and absorption

• reflection, refraction, and transmission

• reflection, scattering, and diffraction

• translucent, transparent, and opaque

In which medium do sound waves travel the slowest?

• Lead

• Air at 0° C

• Steel

• Fresh water

What is the speed of sound through glass at 25?

• 3,650 m/s

• 2,680 m/s

• 5,170 m/s

• 4,480 m/s

Which type of electromagnetic wave has the longest wavelength?

• Visible light

• Radio waves

• Ultraviolet rays

• Gamma rays

The electromagnetic waves with the highest frequencies and the shortest wavelength are called

• radio waves.

• gamma rays.

• X-rays.

• visible light.

The hot object always emit the ----------- waves?

• Infrared.

• Ultraviolet

• X-rays

• Gamma Rays

interpret the shadow of the body shown in the picture.

• because it is transplants object.

• because it is translucent object.

• because it is opaque object.

  .

• shadow is a color

The amount of energy that passes through a square meter

of space in one second. is----------

• waves

• light

• distance

• Intensity

Which eye part responds to colored light?

• cones

• cornea

• iris

• lens