6 Quantities can be either scalar or vector - Edexcel - GCSE Physics - Question 6 - 2021 - Paper 1

To determine the average speed of the ball bearing:

1. Apparatus Needed:

   • A boiling tube filled with the clear dense liquid.
   • A stopwatch or timer to measure time.
   • A ruler or measuring tape to measure the distance the ball bearing falls.
   • A ball bearing.

2. Measurements to Take:

   • Measure and record the distance the ball bearing falls. This should be a fixed distance from the top to the bottom of the boiling tube.
   • Measure the time it takes for the ball bearing to fall this distance using the stopwatch.

3. Calculating the Speed:

   • Use the formula for speed:

     $Speed = \frac{Distance}{Time}$

   • Substitute the measured values into the formula to calculate the average speed of the ball bearing as it falls through the liquid.