Walk with Frictional Force

The main objectives of my students on these pictures are to observe and study frictional force, measure the coefficient of ststic friction and lastlyto determine the factors affceting static friction.

The students were setting up their apparatus as shown in the picture.

In this part students were starting to do their tasks:

Gradually adding sand in the pan until the wooden block starts to move.

The two students on this pictures were doing their best to make an accurate measurements.

Weighing of sand in a trple beam balance.

The another phase of the activity were done here. Students were putting some snad on the pan.

Adding of sand to the pan until the block starts to move.

The students were now looking for the exact angle of inclination by simply following instructions from their laboratory manual.

Placing the block on top of the plane.

This part was quite messy because of tilt powder. However students still shows eagerness to learned and understand the rpinciple of Friction.

They tilt powder the one end of the palne until the block starts to move.

Now students on this picture were doing a partcipative part on allocation of angle.

Measuring the angle of inclination.

Students do the task by simply placing the block on the inclined pane with pulley.

Sprinkle talcum powder on top of the incline plane board with pulley.