Wave Behavior

Only mechanical waves require a medium.

• True

• False

Tags

NGSS.MS-PS4-2

Why do we first see fireworks and then hear them?

• Light travels faster than sound.

• Fireworks produce light but not sound initially.

• Sound travels faster than light.

• Fireworks emit sound before emitting light.

What happens to the sound produced when a bell is struck in a vacuum chamber?

• It travels at the same speed as in air.

• It travels faster than in air.

• It does not travel at all.

Tags

NGSS.MS-PS4-1

In which medium does sound travel the slowest?

• Gas

• Liquid

• Solid

Tags

NGSS.MS-PS4-2

Which medium allows sound to travel the fastest?

• Air

• Underwater

• Through a wooden table

• All travel at the same speed

What is the correct order of the speed of sound, from fastest to slowest?

• Underwater, through a wooden table, air

• Air, through a wooden table, underwater

• Through a wooden table, underwater, air

• All travel at the same speed

Tags

NGSS.MS-PS4-2

Which statement is true regarding the need for a medium for wave propagation?

• Electromagnetic waves require a medium, while mechanical waves do not.

• Both mechanical and electromagnetic waves require a medium.

• Neither mechanical nor electromagnetic waves require a medium.

• Mechanical waves require a medium, while electromagnetic waves do not.

When light strikes a smooth, flat surface, what phenomenon causes the light to bounce back into the same medium?

• Transmission

• Refraction

• Reflection

• Absorption

Tags

NGSS.MS-PS4-2

A ray of light strikes a rough metallic surface. Which of the following options is most likely to happen to the light?

• The light will reflect similarly to a mirror.

• The light will refract uniformly.

• The light will scatter in all directions due to the roughness of the surface.

• The light will be completely absorbed by the metallic surface.

Tags

NGSS.MS-PS4-2

The medium is composed of matter.

• True

• False