Mechanics
Trolley Mass and Gravitational Field Strength Investigation
Scientific ideas
The higher you put the slope the steeper it becomes and the steeper it becomes the more energy are gained by the trolley. There are two types of energy gained
: Potential energy
Potential energy is the energy that a system has because of its position or state. In other words how fast the trolley can go.
2: Kinetic energy
Kinetic energy is the energy an object has from its motion. An object of mass m moving with a speed v will have kinetic energy.
Potential energy is calculated by an equation
Mass × Gravitational field strength × Height
m × g × h
Kinetic energy is calculated by an equation
Half × Mass × Velocity
× m × v2
As the height of the slope is increased so is the potential energy because the steeper the slope is the stronger the gravitational field strength is and that is what pulls the trolley down. The speed is also increased because if more potential energy is gained and it is used faster. Gravitational force acts on the trolley, which makes the trolley, go downwards. As the ramp is raised, the trolley moves faster to the ground. The potential energy is converted into kinetic energy as the trolley is let go off. Not all the potential energy is converted into kinetic energy because some of it is converted into heat because of air resistance. Air resistance is a force, which acts as a resistance to the trolley. There are two things, which can change the amount of kinetic energy, and potential energy there is in the trolley and they are height and mass. The potential energy is converted into kinetic energy so what ever increases the potential energy will increase the kinetic energy. As the height is increased, so does the potential energy because the gravitational field strength has more effect on a trolley, which is on a steeper slope. As the mass is increased, so does the potential energy because the gravitational field strength has more mass to push down. Potential energy changes into kinetic energy as the object starts to move and this is because the potential energy, which is what the trolley is capable off, changes in kinetic energy which does what the trolley is capable of. There are two things, which would alter the speed of the trolley, and they are air resistance and friction. Friction and air resistance will increase as the speed of the trolley increases. The tires of the trolley are made of rubber, which grips onto the slope, which makes the trolley slow down. The more potential energy there is the faster the trolley will go because potential energy converts into kinetic energy and the more potential energy there is the more kinetic energy there is which means hat the trolley has more energy. So as the height is increased so does the PE which means the KE increases which leads to the increase of the velocity.
Prediction:
I think that the higher the slope is the faster the trolley will be because it has more potential energy the higher the slope is. If the slope is at a high point the slope will be more steeper which means that the trolley will come at a faster speed. I think that the higher the slope is the faster the trolley will go because it will have more potential energy which means that there is more potential energy which converted to kinetic energy. It will have more potential energy because the gravitational pull will be greater so the trolley will have more energy to use and more energy converted into other forms of energy due to air resistance and friction. I think that the speed of the trolley will increase throughout the whole slope because the trolley will rise up in speed until it reaches terminal velocity. I predict that the higher the slope is the more energy will be lost due to resistance (friction and air resistance). I predict this because if the trolley were at a higher height then it would have more potential energy, which means it, would go faster which leads to an increase of friction and air resistance. An increase of air resistance and friction means that more energy is converted to heat energy. I predict that the steeper the slope the faster the trolley will be because the trolley will have more energy. I predict that the lower the slope is the slower the trolley will be because the trolley will have less potential energy which means that there will be less energy converted into kinetic energy.
Trolley Mass and Gravitational Field Strength Investigation
Scientific ideas
The higher you put the slope the steeper it becomes and the steeper it becomes the more energy are gained by the trolley. There are two types of energy gained
: Potential energy
Potential energy is the energy that a system has because of its position or state. In other words how fast the trolley can go.
2: Kinetic energy
Kinetic energy is the energy an object has from its motion. An object of mass m moving with a speed v will have kinetic energy.
Potential energy is calculated by an equation
Mass × Gravitational field strength × Height
m × g × h
Kinetic energy is calculated by an equation
Half × Mass × Velocity
× m × v2
As the height of the slope is increased so is the potential energy because the steeper the slope is the stronger the gravitational field strength is and that is what pulls the trolley down. The speed is also increased because if more potential energy is gained and it is used faster. Gravitational force acts on the trolley, which makes the trolley, go downwards. As the ramp is raised, the trolley moves faster to the ground. The potential energy is converted into kinetic energy as the trolley is let go off. Not all the potential energy is converted into kinetic energy because some of it is converted into heat because of air resistance. Air resistance is a force, which acts as a resistance to the trolley. There are two things, which can change the amount of kinetic energy, and potential energy there is in the trolley and they are height and mass. The potential energy is converted into kinetic energy so what ever increases the potential energy will increase the kinetic energy. As the height is increased, so does the potential energy because the gravitational field strength has more effect on a trolley, which is on a steeper slope. As the mass is increased, so does the potential energy because the gravitational field strength has more mass to push down. Potential energy changes into kinetic energy as the object starts to move and this is because the potential energy, which is what the trolley is capable off, changes in kinetic energy which does what the trolley is capable of. There are two things, which would alter the speed of the trolley, and they are air resistance and friction. Friction and air resistance will increase as the speed of the trolley increases. The tires of the trolley are made of rubber, which grips onto the slope, which makes the trolley slow down. The more potential energy there is the faster the trolley will go because potential energy converts into kinetic energy and the more potential energy there is the more kinetic energy there is which means hat the trolley has more energy. So as the height is increased so does the PE which means the KE increases which leads to the increase of the velocity.
Prediction:
I think that the higher the slope is the faster the trolley will be because it has more potential energy the higher the slope is. If the slope is at a high point the slope will be more steeper which means that the trolley will come at a faster speed. I think that the higher the slope is the faster the trolley will go because it will have more potential energy which means that there is more potential energy which converted to kinetic energy. It will have more potential energy because the gravitational pull will be greater so the trolley will have more energy to use and more energy converted into other forms of energy due to air resistance and friction. I think that the speed of the trolley will increase throughout the whole slope because the trolley will rise up in speed until it reaches terminal velocity. I predict that the higher the slope is the more energy will be lost due to resistance (friction and air resistance). I predict this because if the trolley were at a higher height then it would have more potential energy, which means it, would go faster which leads to an increase of friction and air resistance. An increase of air resistance and friction means that more energy is converted to heat energy. I predict that the steeper the slope the faster the trolley will be because the trolley will have more energy. I predict that the lower the slope is the slower the trolley will be because the trolley will have less potential energy which means that there will be less energy converted into kinetic energy.
