BIG IDEA: How are changes in the relationship between the height of an incline plane, the angle of the slope formed, and the speed at which a car rolls down the incline plane represented on line graphs? 1. How does changing the slope (angle) a car is traveling down hill or the steepness of an incline plane change a graph for the speed of the car? The smaller the angle, the steeper slope, and the faster the car traveled. Smaller angles are made by increasing the height of the incline plane. The line on the graph got closer the y axis. 2. What happens to the line as the angle of an incline plane is increased? The line moves away from the y axis decreased? The line moves towards the y axis 3. Does increasing the height of the inclined plane increase or decrease the angle? decrease 4. Does decreasing the angle of the incline plane increase or decrease the height of the incline plane? increase 5. Will the resulting graph of speed be straight lines or curved? Constant speed gives straight lines 6. Will the lines get closer to the y axis or x axis as the slope (angle) is increased? Closer to the x 7. What is the relationship between the height of an incline plane and the angle of the incline plane? As the height increases the angle decreases 8. What is the relationship between the slope of an incline plane and the speed of a car that rolled down the incline plane? As the slope increases the speed increases Predict- If you ran the same experiment again, but increased the weight of the car, what do you think would happen to the speed of the car at the 3 different heights of the incline plane? 9. As the weight increases, with the incline plane at the highest position and the angle smallest angle, I predict the speed of the car will -------? 10. As the weight increases, with the incline plane at the lowest position and the greatest angle, I predict the speed of the car will -------?