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Velocity
Velocity is how fast something moves in a particular direction. I calculated the average velocity of the metal ball as it rolled down step 4. I calculated this by dividing the change in distance by the change in time.
Acceleration
Acceleration is the amount of change in speed. As the ball rolled through Europe the ball had an acceleration of 0.22m/s. We found this by dividing the change in velocity by the change in time.
Force
Force is a push or pull on an object. We calculated the force the ball felt when the lever was pushed in step 2. The force was 6.8 N we calculated this by multiplying the mass and the acceleration.
Potential Energy
Potential energy is the energy an object has due to height in a gravitational field. We calculated the PE by multiplying the mass due to gravity by the change in height. We found the PE on step 8 when the second ball gets released. The PE was 6.9J.
Kinetic Energy
Kinetic energy is the energy due to motion. We found KE on step 7 when the ball hits the London eye it had a KE of 0.6N. This was found by multiplying 1/2 by the mass and the velocity squared.
Work
Work is the amount of energy put into something. Although we didn't find work on any of our steps you find this by multiplying the force by distance.
Mechanical Advantage
The mechanical advantage is the amount easier a task is made. We calculated the MA of the lever in step 1. Although it should be mechanical disadvantage, the mechanical advantage is 0.5. We found this by dividing the force of the effort by the force of the load.
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