PIRA Code(s): 3A10.20 Set up time:1 minute Operation: Move the weight along the hacksaw blade. Pull back on the blade and release. When the weight is at the top of the blade the frequency is smaller compared to when the weight is at the bottom. Physics and Science Concepts: Oscillations Safety: Edge of blade may be sharp.
PIRA Code(s): 6A20.45 Set up time:none Operation: Use the different types of mirrors to compare reflection. Physics and Science Concepts: Geometrical Optics, Reflection Safety: Do not shine bright light into mirror.