Philip Harris 'g' by Free Fall Apparatus

Philip Harris 'g' by Free Fall Apparatus

HE1008263

Product code: HE1008263

To determine the value of 'g' by timing the fall of a steel ball.

The release unit consists of a plate (90mm x 45mm x 3mm) carrying a pair of metal clips connected to 4mm sockets. The clips are opened, thus dropping the ball and breaking the contact between the clips.

The trip unit is mounted on a base measuring 100mm x 100mm x 12mm and comprises of a trip plate, the end of which bears upon the blade of a micro switch and holds it in the closed position. When deflected downwards by the impact of the ball the trip plate releases the blade and opens the switch. The trip plate comes complete with a protective rubber strip to prevent the switch from damage should it be accidentally struck directly by the ball

Kit comes complete with steel balls of 16mm and 19mm diameter.

Spares available:

  • Spare clips for trapdoor: B8R08204 - Pack of 10

Associated Products:

  • Timer Required: Fast timer by Unilab - B8H28573

The 'g' by Free Fall Apparatus is also available for purchase as a bundle with the Unilab Fast Timer (B8H28573).

  • Ideal for both Teacher Demonstration and student use with an appropriate Timer.
  • Key Stage 4 Physics - Forces: Forces and fields: electrostatic, magnetic, gravity. Explain that weight is an effect of gravity which can vary with the gravitational field strength g (measured in N/kg) and recognise and predict phenomena that depend on weight and non inertial mass and distinguish between the two. Give examples of forces which act without contact across an empty space, linking these to the gravity, electric and magnetic fields involved. Estimating speeds and accelerations in everyday contexts. 
  • The Philip Harris g by Free Fall Apparatus is also available to purchase as a bundle alongside the Unilab Fast Timer  

To determine the value of 'g' by timing the fall of a steel ball.

The release unit consists of a plate (90mm x 45mm x 3mm) carrying a pair of metal clips connected to 4mm sockets. The clips are opened, thus dropping the ball and breaking the contact between the clips.

The trip unit is mounted on a base measuring 100mm x 100mm x 12mm and comprises of a trip plate, the end of which bears upon the blade of a micro switch and holds it in the closed position. When deflected downwards by the impact of the ball the trip plate releases the blade and opens the switch. The trip plate comes complete with a protective rubber strip to prevent the switch from damage should it be accidentally struck directly by the ball

Kit comes complete with steel balls of 16mm and 19mm diameter.

Spares available:

  • Spare clips for trapdoor: B8R08204 - Pack of 10

Associated Products:

  • Timer Required: Fast timer by Unilab - B8H28573

The 'g' by Free Fall Apparatus is also available for purchase as a bundle with the Unilab Fast Timer (B8H28573).

  • Ideal for both Teacher Demonstration and student use with an appropriate Timer.
  • Key Stage 4 Physics - Forces: Forces and fields: electrostatic, magnetic, gravity. Explain that weight is an effect of gravity which can vary with the gravitational field strength g (measured in N/kg) and recognise and predict phenomena that depend on weight and non inertial mass and distinguish between the two. Give examples of forces which act without contact across an empty space, linking these to the gravity, electric and magnetic fields involved. Estimating speeds and accelerations in everyday contexts. 
  • The Philip Harris g by Free Fall Apparatus is also available to purchase as a bundle alongside the Unilab Fast Timer  

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