Light and Sound IPC

What type of light is made by heating a piece of metal until it glows?

• Transparent light

• Opaque light

• Incandescent light

What is an image that looks closer or farther than it actually is because of warm or cool layers of air near the ground?

• Mirage

• Coherent light

• Polarized light

What does transparent mean?

• You can see through it clearly

• You can see only dark shapes through it

• You cannot see through it at all

What word means a material absorbs some colors and reflects others?

• Holography

• Transparent

• Pigment

What does translucent mean?

• You can see some things through a material

• You can see nothing though a material

• You can see clearly through a material

What is the light that uses ultraviolet radiation to cause a light bulb to grow?

• Fluorescent light

• Incoherent light

• Reflection

What is a material that absorbs or reflects all light?

• Transparent

• Translucent

• Opaque

What happens when light strikes a surface between two materials and completely reflects back into the first material?

• Reflection

• Incandescent light

• Fluorescent light

What is the change in pitch or frequency that occurs when the source of sound wave is moving toward or away from the observer?

• Acoustics

• Doppler effect

• Overtone

How do humans perceive sound intensity?

• Loudness

• Pitch

• Sonar