C24

Question 1

2. Refraction

Answer 1

2. The bending of a wave as it enters a new medium at an angle other than 90 degrees.

Question 2

3. Diffraction

Answer 2

3. The spreading of wave through an opening or around the edges of an obstacle.

Question 3

4. Interference

Answer 3

4. The meeting and combining of waves.

Question 4

1. Reflection

Answer 4

1. The bouncing back of a wave a after it strikes a barrier