PIRA Code(s): 1Q20.99 Set up time:3 minutes Operation: Take the arm and put it in the slots on the trebuchet. Put the projectile into the green pouch and place the string around the end of the rod. Stick the pin through the three eyelets on he arm and base of the apparatus. Then load the counterweight onto the end of the arm near the wheels. Pull the string to launch the trebuchet. Physics and Science Concepts: Mechanics, Rotational Energy Safety: Do not attempt to catch the projectile. Stay out of the projectile’s path. Stand clear of the swinging arm. The trebuchet is capable of flinging projectiles 20 meters or more, so choose projectiles and counterweights wisely. Safety glasses must be worn when operating.
PIRA Code(s): 1Q40.30, 1Q50.24 Set up time:3 minutes Operation: Stand on the stool as it remains still. Have someone start the motor and place the bicycle wheel next to it to get it to start spinning. Take the spinning wheel in your hands and turn the wheel in a horizontal position and you should spin. When the wheel is placed vertical again, you will spin the opposite direction.
Use the motor to start the wheel spinning. Hold on to the cord attached to the axle and the wheel will remain vertical. Physics and Science Concepts: Mechanics, Rotational Dynamics Safety: Do not get items caught in the motor or the spokes of the tire. Hold wheel out from the body as far as possible
PIRA Code(s): 1Q50.30 Set up time:1 minute Operation: Rotational Dynamics, Mechanics, Gyroscopic Motion Physics and Science Concepts: Rotational Dynamics, Mechanics, Gyroscopic Motion Safety: The central gyroscope is quite heavy and can pinch fingers.
PIRA Code(s): 1Q50.60 Set up time:2 minutes Operation: Use the string or turn the rotor with your thumb to start the gyroscope spinning. Take care to hold the gyroscope and metal hold in place relative to the top block of wood. Then, spin the wooden block, stop it, and reverse the direction of the spin. The gyroscope will do a spin flip. Physics and Science Concepts: Rotational dynamics, Mechanics Safety: None
PIRA Code(s): 6A40.99 Set up time:none Operation: Shine a focused beam of light at one of the facets of the prism. Light is refracted and split into its constituent wavelengths (i.e. Colors of the rainbow). These can be used with various other optical experiments. Physics and Science Concepts: Optics, Refraction Safety: Edges and corners may be sharp