By: Samantha Woolf
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1.2- Displacement, Distance, Velocity, Speed, Acceleration o Displacement- a vector measure of the interval between two locations measured along the shortest path connecting them o Distance- measure of the interval between two locations o Velocity- rate and direction of the change in the position of an object o Speed- the rate at which an object covers distance o Acceleration- the change in velocity over a unit of time 1.4- Newton's Three Laws of Motion o Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. o The direction of the force vector is the same as the direction of the acceleration vector o For every action there is an equal and opposite reaction 1.7- Newton’s Law of Universal Gravitation o Any two bodies in the universe attract each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them
Support force: The upward force that completely balances an object’s weight at rest. 0.30g g= 0g 0.20g – 0.20g= 0g 0.40g – 0.40g= 0g
Speed: how fast something is moving in a unit of time o The ball inside our ride moves at a certain speed Weight: the force on a body due to gravitational attraction of another body (commonly Earth) o The balls that are used in the ride have different weights, affecting the average speed for each ball Distance: amount of space between two objects or points o How much space the ball covers as it goes up and down the tube is how distance is applied in our ride
Speed= distance/time Example: o A horse runs nine miles in three minutes o 9 miles/3 minutes o The horse can run three miles in one minute
The following slides are the data for the average speeds of three different types of balls that were used inside the ride to make a variable They were: o A small styrofoam ball o A small orange pom pom o A large yellow pom pom
Orange Pom Pom: Mass=0.30g TrialTimeDistance (height of tube) sec26 cm sec26 cm sec26 cm Average Time: 3.57sec (rounded to hundredth) Average Speed: 7.28 cm/sec (rounded to hundredth)
TrialTimeDistance (height of tube) sec26 cm sec26 cm sec26 cm Yellow Pom Pom: Mass= 0.40g Average Time: 4.76 sec(rounded to hundredth) Average Speed: 5.46 cm/sec (rounded to hundredth)
TrialTimeDistance (height of tube) sec26 cm sec26 cm sec26 cm Small Foam Ball: Mass= 0.20g Average Time: 8.25 sec Average Speed: 3.15 cm/sec (rounded to hundredth)
Q: How Many Centimeters in a Meter? A: 100 Orange Pom Pom had an average speed of 7.28 cm/sec 7.28/100= The orange pom pom can travel m/sec Yellow pom pom had an average speed of 5.46 cm/sec 5.46/100= The yellow pom pom can travel m/sec Styrofoam ball had an average speed of 3.15 cm/sec 3.15/100= The Styrofoam ball can travel m/sec
Q: How Many Centimeters in a foot? A: Orange Pom Pom had an average speed of 7.28 cm/sec 7.28/30.48= The orange pom pom can travel ft/sec Yellow pom pom had an average speed of 5.46 cm/sec 5.46/30.48= The yellow pom pom can travel ft/sec Styrofoam ball had an average speed of 3.15 cm/sec 3.15/30.48= The Styrofoam ball can travel ft/sec
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