Overview

The QNET Physics and Dynamics board consists of a catapult with adjustable release angle and a sliding mass arm with adjustable incline. The angles of the catapult and the sliding mass arm are measured by a single-ended optical shaft encoder. The behavior of the catapult and sliding mass experiments are controlled by electromagnets, releasing the sliding arm and the catapult arm. Also included are a set of classic mechanical elements such as springs, pulleys, masses with different surface materials, and pendulums, that can be set up in various configurations for a wide range of experiments.

  • Multiple platforms and components for creating a wide range of experimental configurations
    • Sliding mass with 4 different surfaces (PETG, styrene, rubber, Teflon)
    • Two 100 g and 50 g weights
    • Spring
    • Return pulley attachment
    • Two pendulum rods with different lengths
  • High resolution optical encoders to sense position of the catapult and sliding mass arms
  • Electronic release of sliding mass and catapult arm
Force and Motion
  • Newton’s Second Law
  • Projectile motion
Friction
  • Material coefficient of friction
  • Sliding mass on an inclined plane
Energy and Momentum
  • Hooke’s Law
  • Equilibrium
Oscillations
  • Simple pendulum systems
  • Spring-mass-damper systems

The following additional components are required to complete your workstation, and are sold separately:

For LabVIEW

  • NI ELVIS II+

Product Details

Sliding mass weight 130 g
Small free mass weight 50 g
Large free mass weight 100 g
Sliding mass pulley radius 2.54 cm
Spring constant of extension spring 17.34 N/m
Maximum load of extension spring 387 g
Short pendulum rod length 7.62 cm
Long pendulum rod length 15.24 cm
Small fixed pulley radius 0.79 cm
Large fixed pulley radius 1.59 cm
Free pulley radius 1.27 cm
Catapult arm length (pivot to center of projectile holder) 22.94 cm
Encoder line count 512 lines/rev
Encoder line count in quadrature 2048 lines/rev

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