Newton's 2nd Law
Dynamic Acceleration
Learning Objectives
 | Accurately measure and record data. |
| Compare and identify differences in acceleration due to changes in Force and acceleration. |
| Apply this experience to homework problems. |
Equipment
This is the appropriate set-up.
Procedure
1. Confirm that the recorder strip is inserted into the timer bridge with the metallic layer up. The strip should lie smoothly on the bench and not twisted. Confirm that the marking frequency is 10 Hz (10 marks per 1 second).
2. Use the Balance Scale and determine the mass in grams for:
| One mass on the hook, and |
| Two masses (10g & 5g) on the trolley. |
| Mark the beginning position (I) on the recorder strip beside the pin. |
| Switch on the recorder. |
| Release the trolley. |
| Switch off the recorder when the trolley has stopped. |
3. SECOND RUN - DOUBLE THE DRIVING FORCE - Add two masses to the hook.
| Move the recorder pin to the next position (II). |
| Switch on the recorder. |
| Release the trolley. |
| Switch off the recorder when the trolley has stopped. |
4. THIRD RUN - DOUBLE THE TROLLEY MASS - Add 100g mass to the trolley.
| Move the recorder pin to the next position (III). |
| Switch on the recorder. |
| Release the trolley. |
| Switch off the recorder when the trolley has stopped. |
5. Measure the distance the trolley traveled from the first mark to the next 0.1 second mark up to 1.0 second (10 data points).
6. Enter your data on the Dynamic Acceleration Data Collection Worksheet.
7. Homework Assignments for the lab are:
| PHY 111 Chapter 4 assigned problems |
| PHY 112 Chapter 4 assigned problems |
Homework and Lab Report are both due at the next class.