Unit 3 Post-Assessment Review
Presentation
•
Science
•
8th Grade
•
Hard
Standards-aligned
Taylor Addison
Used 3+ times
FREE Resource
3 Slides • 10 Questions
1
Mechanical waves can be either transverse or longitudinal/compressional.
transverse - ocean waves (crests, troughs, wavelength, amplitude, frequency)
longitudinal/compressional - sound waves (compressions, rarefactions)
Mechanical - Require a medium
The electromagnetic spectrum consists of different frequencies and wavelengths, but each type of wave moves at the same speed - the speed of light.
Electromagnetic - Does NOT require a medium
2
Multiple Choice
A
B
C
D
3
Multiple Choice
A
B
C
D
4
Multiple Choice
A
B
C
D
5
Multiple Choice
A
B
C
D
6
Multiple Choice
A
B
C
D
7
LIght bounces off a surface
Reflection
Light appears to bend as it slows down passing from one medium to another
Refraction
Light has to bend around a barrier or an opening.
Diffraction
8
Multiple Choice
A
B
C
D
9
Multiple Choice
A
B
C
D
10
Multiple Choice
A
B
C
D
11
Multiple Choice
A
B
C
D
12
Makes objects smaller
Causes light to disperse or go outward
Concave
Makes objects larger
Causes light to focus at a focal point
Convex
13
Multiple Choice
A
B
C
D
Mechanical waves can be either transverse or longitudinal/compressional.
transverse - ocean waves (crests, troughs, wavelength, amplitude, frequency)
longitudinal/compressional - sound waves (compressions, rarefactions)
Mechanical - Require a medium
The electromagnetic spectrum consists of different frequencies and wavelengths, but each type of wave moves at the same speed - the speed of light.
Electromagnetic - Does NOT require a medium
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