Making Waves at Swim Practice

What allows sound waves to travel through metal?

• • It is shiny

• • It is made of matter

• • It reflects light

• • It absorbs sound waves

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NGSS.MS-PS4-2

Why do people sound different underwater?

• • Sound waves are blocked by water

• • Sound waves travel faster in water than in air

• • Water absorbs sound waves completely

• • Water creates echoes

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NGSS.MS-PS4-2

What is refraction?

• • Reflection of light off objects

• • Bending of light as it passes through different materials

• • Absorption of light by water

• • Slowing of sound waves

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NGSS.MS-PS4-2

What happens to light when it moves from water to air?

• • It bends

• • It disappears

• • It speeds up but does not bend

• • It changes color

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NGSS.MS-PS4-2

Why do legs look bent underwater?

• • The water distorts them

• • Light refracts as it moves through water and air

• • Sound waves interfere with vision

• • Water absorbs light

What is white light made of?

• • Only one color

• • Many different colors of light

• • Blue and red light only

• • Invisible light

How do sound waves behave in solid materials compared to air?

• • They travel faster in solid materials

• • They travel slower in solid materials

• • They do not travel through solid materials

• • They travel at the same speed

Tags

NGSS.MS-PS4-2

What causes a rainbow in water droplets?

• • Reflection of light

• • Refraction and separation of light into different colors

• • Absorption of blue light

• • Sound waves traveling through water

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NGSS.MS-PS4-2

Why do sound waves travel faster in water than in air?

• • Water is a better conductor of light

• • Water has more tightly packed molecules

• • Sound waves cannot move in air

• • Water reflects sound waves

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

What is the angle of refraction?

• • The angle at which light bends when it passes between materials

• • The angle light makes when it reflects

• • The angle of sound waves traveling through air

• • The angle of water waves

Tags

NGSS.MS-PS4-2