Ramp and Wood Block

A ramp with a wooden block resting on it.

Concept Overview:

1. Different surfaces provide different amounts of friction

Lecturer Procedure

Step(s) to Follow	Expected Result
1. Place 2-sided wood block on ramp. 2. Slowly lift ramp until the block starts to move. 3. Note angle of ramp 4. Replace ramp and turn block over. 5. Repeat steps 2&3.	One side of the block will begin sliding at a much lower angle due to the differences in friction between the 2 surfaces.

Step(s) to Follow

Expected Result

1. Place 2-sided wood block on ramp.

2. Slowly lift ramp until the block starts to move.

3. Note angle of ramp

4. Replace ramp and turn block over.

5. Repeat steps 2&3.

One side of the block will begin sliding at a much lower angle due to the differences in friction between the 2 surfaces.