All About Waves

What is the main topic of the learning material?

(a)  

• Light

• Waves
• Sound

• Electricity

Fill in the blank: The learning material is all about ______.

• Mountains

• Waves

• Trees

• Animals

Which of the following is true about waves?

• Waves carry matter

• Waves are stationary

• Waves carry energy

• Waves are always visible.

In a compressional wave, the area where particles are spread apart is called ______.

• Compression

• Crest

• Trough

• Rarefaction

What is the law of reflection?

• The angle in equals the angle out.

• Waves bend when entering a new medium.

• Waves bounce around an object.

• Large obstacle causes large diffraction.