g by Free Fall Apparatus – Acceleration Due to Gravity Demonstrator (KS4+)

The g by Free Fall Apparatus provides a clear and accurate method for determining the acceleration due to gravity, making it ideal for KS4 and A‑Level Physicselectromagnet release unit, a heavy steel sphere, and a platform fitted with a microswitch, all housed in durable moulded plastic casings designed for repeated use in school laboratories.

When the sphere is held by the electromagnet, switching the release control to the upward position simultaneously cuts power to the magnet and starts an external timer. As the sphere drops, it falls freely under gravity until it lands on the platform’s cork mat, triggering the built‑in microswitch to stop the timer. This provides an accurate measurement of the time taken to fall a known distance, allowing students to calculate g.

For best performance, it is recommended to use this apparatus with the Eisco Laboratory Timer (Code 0945), which includes a suitable power supply for the electromagnet and plugs directly into the system.

Key Features

• Designed for accurate measurement of the acceleration due to gravity
• Includes electromagnet release unit housed in a durable moulded case
• Supplied with a heavy steel sphere for consistent freefall experiments
• Platform unit features a sensitive microswitch and cork impact mat
• Start and stop functions automatically triggered by release and impact
• Connections provided for use with an external timer
• Compatible with the Eisco Laboratory Timer (Code 0945)
• Robust and reliable construction for repeated classroom use

Ideal for School Science Lessons

Perfect for KS4 and KS5 Physics, this apparatus supports a wide range of learning objectives related to motion and forces, including:

• Demonstrating acceleration due to gravity using freefall
• Exploring timing, distance, and acceleration relationships
• Developing understanding of Newton’s Laws of Motion
• Using data to calculate g with high accuracy
• Hands‑on practice with timers, sensors, and measurement equipment

Reliable, precise, and classroom‑ready, the g by Free Fall Apparatus is an essential tool for teaching fundamental principles of motion and gravitational acceleration in secondary and post‑16 physics.