8th Gr. Electromagnetic Waves and Spectrum

A disturbance that transfers energy from place to place is called a __________. 

• Wave
• Medium
• Vibration
• Compression 

The highest parts of a transverse wave are called ____________. 

• Troughs
• Crests
• Nodes
• Wavelengths 

Waves that move particles of the medium parallel to the direction in which the waves are traveling are called ___________. 

• Compressional Waves
• Transverse Waves
• Surface Waves
• Combination Waves 

The distance between two corresponding parts of a wave is the wave's ___________. 

• Amplitude
• Wavelength
• Frequency
• Speed 

The bending of waves due to change in speed is called ______________. 

• Reflection
• Refraction
• Diffraction
• Interference 

The interaction between two waves that meet is called _____________. 

• Reflection
• Refraction
• Diffraction
• Interference 

Frequency is measure in units called __________. 

• Amps
• Hertz
• Nodes
• Antinodes 

Electromagnetic waves can transfer energy without a(an) _________. 

• Medium
• Electric Field 
• Magnetic Field 
• Change in either a magnetic or an electric field 

When a police officer uses a radar for speed control, the officer is using what kind of electromagnetic waves? 

• Radio Waves
• Gamma Rays
• Ultraviolet Rays
• X-Rays 

Visible light can be separated into various colors to form a (an) __________. 

• Spectrum
• Thermogram
• MRI
• X-Ray Picture