Vocab Review #1 (Waves & Energy)

What is absorption?

• the scattering and redirection of light rays as they interact with a material or medium

• the change in direction of a wave that occurs as the wave changes speed when moving from one medium to another

• The process where a wave's energy is transferred to the material it's passing through

• The bending of a wave as it enters a new medium

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What does amplitude measure in a wave?

• The lowest point of a wave

• the length of one cycle of the wave, measured from crest to crest (or trough to trough)

• the number of waves that pass a single point in one second

• The distance from the equilibrium to the crest (or trough) of a wave

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What does wavelength measure in a wave?

• The lowest point of a wave

• the length of one cycle of the wave, measured from crest to crest (or trough to trough)

• the number of waves that pass a single point in one second

• The distance from the equilibrium to the crest (or trough) of a wave

What is compression in a longitudinal wave?

• the part of a longitudinal wave where the particles of the medium are far apart

• The part of a longitudinal wave where particles are close together

• The scattering of light through a medium

• The height of the wave from rest position

What do concave lenses do to light?

• Bend light outward away from a focal point

• Reflect light back into the medium

• Scatter light in all directions

• Bend light inward toward a focal point

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What is a convex lens?

• A lens that bend light outward away from a focal point

• A lens that scatters light randomly

• A lens that bends light toward a central focal point

• A lens that absorbs light energy

What is the crest of a wave?

• The distance from crest to crest

• The lowest point of a wave

• The highest point of a wave

• The point where a wave bends

What is diffraction?

• the change in direction of a wave (like light or sound) when it encounters a boundary between two different mediums, causing it to bounce back into the original medium

• the scattering and redirection of light rays as they interact with a material or medium

• The change in direction of a wave when it travels by an edge or through an opening

• the process where a wave's energy is transferred to the material it's passing through

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What is diffusion?

• when two or more waves overlap in the same space, resulting in a new wave pattern

• the change in direction of a wave (like light or sound) when it encounters a boundary between two different mediums, causing it to bounce back into the original medium

• The scattering and redirection of light rays as they interact with a material

• the process where a wave's energy is transferred to the material it's passing through

What is an electromagnetic wave?

• A wave that needs matter to move

• A mechanical wave that is longitudinal

• a longitudinal wave consisting of compressions and rarefactions that travels through a medium

• A transverse wave that can travel through matter or empty space

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