Question/Purpose: What happens to the effort force required to move the cart up the inclined plane if the angle of the incline is increased? Hypothesis: If the angle of the inclined plane is increased, then the effort force required to move the cart up the incline increases because as the cart gets dragged higher and higher up the inclined plane, the more gravity acts upon it. Controlled Variables: • Load force • Effort distance (30cm) Manipulated/Independent Variable: • Angle of incline Responding/Dependent Variable: • Effort force Materials: • 1-peg board • 1-cart • 1-inclined plane/ramp • 1-Newton Scale • 1-protractor • 1-large metal hook • 1-meter stick Procedure: 1. Place the pegboard upright and connect the ramp to the pegboard using …show more content…
The average effort force needed to drag the cart up the 10˚ angle of incline was .36N, and the average effort force needed for the 12˚ angle of incline was .56N. The average effort force needed to drag the cart up the 14˚ angle of incline was .66N, and the average effort force needed for the 16˚ angle of incline was .7N. The average effort force needed to drag the cart up the 18˚ angle of incline was .82N, and the average effort force needed for the 20˚ incline was .96N. Inclined Planes states, “If you make the ramp steeper, you’ll have a shorter distance, but it will be harder to push the rock (you’ll need more force). If you make the ramp less steep, it will have to be longer, but it will be easier to push. Either way, it’s the same amount of work in the end, but you have the choice of easier work for a longer time, or do harder work for a shorter time.” The evidence supports the claim because when the cart gets higher and higher off the ground the more gravity acts upon it, pulling it towards the centers of the earth. That causes there to be more force needed to pull the cart up the incline and act against the force of gravity. For example, the difference of the average effort force needed for the 10˚ angle of incline (.36N) and the average effort force needed for the 20˚ angle of incline (.96N) is .6N, supporting
Then I attached the “steps” to the milk crate. The steps will hold the base of the ratapult at a 25-degree angle. I attached the “steps” by drilling holes in the bottom of them and then tying them to the milk crate. Then I nailed the board with wallpaper into the back end of the base. The base was then nailed into the “steps”, and glued grass decorations and cardboard cows to the base. The ratapult was completed.
the load , the height of the ramp or the angle. I have chosen the
To build a ramp or install a chair lift for a person who becomes disabled (to allow him or her to continue living at home).
Rolling a Car down a Ramp Investigation PLANNING When planning my experiment, I will need to take into consideration. the following points: -Fair testing -Equipment -How many results will I get? -What range of variables I will experiment with I will be investigating, by varying the height of the summit of the ramp. is raised off the ground, if the average speed increases or decreases.
time graph, and an acceleration vs. time graph. We made graphs with our information from the 4cm and 6cm inclines and excluded our information from the 2cm incline since our data was not very accurate for that specific trial. It was most likely not very accurate because the incline was so small that it did not really have an effect on the ball. We found the velocity from our data by using the formula change in distance/change in time, and then found the acceleration by taking the change in velocity/change in time. After creating our graphs with the data, we found the position time graph was an upward curve. This makes since because as the time increases, the distance the ball has traveled increases at a higher rate. The graphs for the velocity resemble a diagonal line, a constant rate. This makes sense because as the time increases, the velocity increases at a constant rate. For example, the ball is moving at a higher velocity at 3 seconds than it was at 1 second. We also found that as the incline increases, the velocity increases. The ball goes faster as it rolls down the incline because of acceleration. The graphs for acceleration should be a constant number, a straight horizontal line on a graph. We know this because if you take
Two factors contribute to the resistive frictional force; a normal force and the friction coefficient. The normal force is the force holding the person up keeping them from falling towards the center of the earth. On level ground the normal force acts straight up against the acceleration of gravity. On a slope, the normal force is equal to the force of gravity proportional to the cosine of the angle of the slope to horizontal. This portion of gravity attempts to accelerate the person toward the center of the earth, the normal force resists this acceleration. The remaining component of gravity accelerates the body down the hill parallel to the slope, a linear acceleration.
(b), there is maximum kinetic energy and little potential energy. The kinetic energy propels the train up the second hill
* I will then use a small pile of books and set the ramp up at the
The track we have to carry is long and hard. We have to build 4 curved track right next to each other. Four people have to carry a rail and one person putting in the spike with a sledge hammer in 3 strikes on the first spike. Most people working on the curve were Irish immigrants just like me. The track that we are laying is a seven feet by one feet. And four people have to carry the
In the experiment these materials were used in the following ways. A piece of Veneer wood was used as the surface to pull the object over. Placed on top of this was a rectangular wood block weighing 0.148-kg (1.45 N/ 9.80 m/s/s). A string was attached to the wood block and then a loop was made at the end of the string so a Newton scale could be attached to determine the force. The block was placed on the Veneer and drug for about 0.6 m at a constant speed to determine the force needed to pull the block at a constant speed. The force was read off of the Newton scale, this was difficult because the scale was in motion pulling the object. To increase the mass weights were placed on the top of the ...
While experimenting it was observed that when the smaller slinky was able to make it down the course it was much closer to hitting to stairs than the larger slinky. In addition, it was also observed that the smaller slinky seemed to travel faster down the stairs than the larger slinky. Figure 4: Results for testing to see which slinky could travel down the course the most consistently. CONCLUSIONS In the first experiment it was hypothesized that the more mass added onto to slinky the more mass added to the slinky the slower it would move down the stairs.
The file labeled “Newton’s 2nd Law” is to be opened. The cart’s mass along with the attachment of the sensor and the accelerometer are to be measured and recorded. Being carefully verified in order, the track is leveled and the Force Sensor is set to 10N and connected to...
the length of the slope can be used to calculate the speed of the car
The needing for space on the external ramp for workers to move the stones blocks up the ramp and keep the supply train moving was necessary , In order to keep these teams small enough—about ten to twelve men was ideal—the incline of the ramp needed to be kept at a maximum grade of around 8—8.5 percent. The steeper the ramp is, the more men you need pulling the blocks, and the larger the teams are, the fewer you can have on the ramp at one time. The fewer teams, the slower the progress (figure 1).
The independent variables in this experiment are the height of the ramp, the length of the ramp, the surface of the ramp, the weight of the marble, the size of the marble, and the surface of the marble. The dependent variable is the distance the ball rolls. The controlled variables are the starting position of the ball, the angle of the ramp, and the surface of the floor. Units: The height of the ball from the ground, the height of the ramp, and the distance the ball rolls will be measured in centimeters (cm).