Narika Lever and Pendulum Apparatus – With Stand & Weights

The Narika Lever and Pendulum Apparatus is a complete teaching set that enables students to explore the fundamental principles of force, motion, and energy conversion. Ideal for classroom demonstrations and hands-on experiments, the set includes a lever unit, pendulum unit, weights, and a durable steel stand.

The lever unit features 12 numbered holes for easy weight placement, making it simple to study the correlation between fulcrum position, effort, and load (principle of moments). The pendulum unit is equipped with a semi-circular protractor and adjustable thread length, allowing precise investigations into pendulum cycles and energy transfer between potential energy and kinetic energy.

Advantages to Users

• Complete set for lever and pendulum experiments
• Numbered lever arm holes simplify setup and measurement
• Semi-circular protractor for accurate angle readings
• Adjustable pendulum length with reel system
• Compact, sturdy design suitable for classroom use

For Teachers
This apparatus supports teaching of:

1. The relationship between height and speed

2. How impact force on an object varies with height, speed, and weight
   The slope angle can be adjusted between 0–45°, measured using the built-in protractor. Teachers can also measure the distance of objects moved after collisions to explore proportional changes in kinetic energy.

For Students
Learners can confirm the direct relationship between potential energy and kinetic energy through real experiments, reinforcing theoretical concepts with practical results.

Optional Measurement (BeeSpi V Compatible)
With the addition of a BeeSpi V device, students can measure ball speed at the moment of collision. This stand-alone tool provides direct readings without needing a computer or software, making experiments even easier to conduct.

Specifications

1. Pole rod – Brass with nickel chrome plate, φ12 × ~440 mm
2. Base – Steel, 180 × 140 × 15 mm, ~480 g
3. Lever – Aluminium, 30 × 400 mm, with 12 scale marks (30 mm divisions), printed numerals (1–6) on both sides, and 24 holes in total
4. Lever holder – ~55 × 50 × 35 mm, ~80 g
5. Protractor plate – Semi-circular, 100 mm diameter, up to 120° in 10° steps
6. String adjustment knob – With reel for easy length adjustment
7. Screw – M4 × 8 mm
8. Thread – Suspended in V-shape, maximum length ~1 m

Downloadable Resources:

• 45LPA - Instruction Manual
• Experiment - Isochronism of Simple Pendulum
• Experiment - Measurement of Pendulum Velocity
• Experiment - 

  Pendulum Velocity & Energy Conservation