4.3 Reflection of Transverse Waves 2/9

Question 1

What do waves transport?

Answer 1

Energy

Waves are disturbances through which energy is transferred from one location to another.

Question 2

When a wave encounters a barrier, what needs to happen to its energy?

Answer 2

The energy needs to go somewhere

It can either be redirected or absorbed

Question 3

When a wave hits a barrier, what factors affect where its energy goes?

Answer 3

The size, shape and density of the barrier

Question 4

Descsribe wave reflection

Answer 4

When a wave strikes a barrier and bounces off

Question 5

True or False: All waves can be reflected.

Answer 5

True

This includes sound waves, light waves, and water waves.

Question 6

What will happen to a transverse wave with a fixed end, if it hits a barrier?

Answer 6

It will FLIP and REFLECT

Another name for flip is INVERT

Question 7

What will happen to a transverse wave with a free end, if it hits a barrier?

Answer 7

REFLECT but not invert (keep the same orientation).

Question 8

What is an example of a rope with a “free end”? (for demonstrating reflection)

Answer 8

A rope that is attached to loop which is around a pole. (The loop can slide up and down the pole.)

Question 9

What is an example of how to demonstrate a transverse wave with a fixed end?

Answer 9

A rope is tied directluy to a pole (the end that is tied cannot move).

Question 10

Does this rope have a fixed end or a loose end?

Answer 10

Fixed end

Because the wave INVERTS after strking the wall

Question 11

Does this rope have a fixed end or a loose end?

Answer 11

Loose end

Becaues the rope did NOT invert when it reflected off the pole