Waves: Earn Back points

The wave crest is represented by which letter?

• D

• B

• C

• E

Look at the floating object. Which describes the motion of the object if a gentle wave passes by? Notice that there are no other forces on the leaf. Note: think about the definition of a wave.

• It will move forward in direction of the wave.

• It will move up and down, but will not move forward.

• It will fly away because water is yucky.

• It will move in opposite direction of the wave.

Which is the definition of a wave?

• Both energy and matter are transported by a wave

• A wave transports energy without transporting matter

• A wave transports matter without transporting energy

What can you see in a room that has no visible light?

• Only bright colored objects
• Only dark colored objects
• Only white objects
• Nothing at all

Tags

NGSS.MS-PS4-2

What property of light makes this pencil appear to be bent or broken?

• Reflection
• Refraction
• Diffraction
• Absorption

Tags

NGSS.MS-PS4-2

What are the characteristics of mechanical (longitudinal or sound waves) and electromagnetic waves (transverse or light waves)?

What is going on with our eyes when an object appears black?

• All colors of visible light are reflected into our eye.

• All colors of visible light are scattered.

• All colors of visible light are absorbed by an object .

What is going on when an object appears yellow?

• All colors of visible light are transmitted to an object, but only yellow light is reflected to our eye by the object.

• All colors of visible light are transmitted to an object, but only yellow light is absorbed by the object.

Does light require a medium or matter to transmit from its source to an object?

• YES

• NO

What does a prism do to sunlight(white light)?

• A prism refracts and separates white light into the individual colors of light.

• A prism reflects white light until the individual colors of light are produced.

• A prism absorbs certain wavelengths of visible light on one side and transmits them out of the other end.