What can different substances do to electromagnetic waves?

• Only absorb them

• Only reflect them

• Absorb, transmit, refract, or reflect them

• Only transmit them

What causes refraction in electromagnetic waves?

• Change in frequency

• Difference in velocity of the waves in different substances

• Change in amplitude

• Difference in wave height

What should students be able to construct to illustrate wave refraction?

• Bar graphs

• Ray diagrams

• Pie charts

• Line graphs

What happens to a wave when it travels from one medium to another?

• It changes color

• It changes speed

• It changes direction only

• It remains unchanged

What is the purpose of using wave front diagrams in studying refraction?

• To explain the change of speed

• To measure wave height

• To calculate frequency

• To determine wave color

Which of the following is NOT a way electromagnetic waves interact with substances?

• Absorb

• Transmit

• Refract

• Multiply

What is a key factor in the refraction of waves?

• Wavelength

• Velocity difference in substances

• Wave height

• Frequency

What should students use to illustrate the boundary between two different media?

• Wave front diagrams

• Ray diagrams

• Bar charts

• Histograms

What is the effect of a wave traveling from one medium to another?

• It changes its wavelength

• It changes its speed

• It changes its frequency

• It changes its amplitude

What is an example of an effect due to the difference in wave velocity in substances?

• Reflection

• Refraction

• Absorption

• Transmission