Vocabulary
Potential Energy
Kinetic Energy
Motion Graphs
Speed Calculations
100
unequal forces on an object that may result in a change in position, direction, or motion
Unbalanced forces
100
At which point is the potential energy the greatest?
Point 1
100
Which variables affect kinetic energy?
Velocity and mass
100
Where is the graph the steepest? What does it mean?
Between hours 4-6. It is the fastest.
100
What the speed at 2s?
2.25 m/s
200
Energy of motion
Kinetic Energy
200
A biker was biking a trail in the mountains. Hill 1 was a height of 20 m. Hill 2 was a height of 30 m. Where on the bikers trail did he have the most potential energy?
Hill 2
200
Give an example of kinetic energy.
Running, a soaring baseball, swimming, etc.
200
What is the speed at 2 hrs?
20 Km/Hr
200
What is the speed at 20 minutes?
0.075 km/min
300
equal and opposite forces on an object that result in no change in position, direction, or motion
Balanced forces
300
Which variables affect potential energy?
shape and position
300
Which point has the greatest kinetic energy?
Point 2
300
What happens between 3-4 hrs?
The object stops/ is at rest
300
What is the speed at 60 minutes?
0.05 km/min
400
Stored energy of an object because of its position or shape
Potential Energy
400
Two boulders sit at the top of a hill. Boulder A weighs 200 g. Boulder B weighs 100g. Which block has the most potential energy?
Boulder A
400
A bicycle and passenger car are both moving at a velocity of 15 miles per hour. Which has more kinetic energy? Why?
The car, it has more mass
400
Give an example of where there is an unbalanced force.
At 3 hours. A force is applied to stop the object to make it be at rest.
400
What is the speed for Trial 1?
0.3 km/min
500
the total distance traveled by an object over a total amount of time
Average speed
500
Why does point 1 have more potential energy than points 3 or 6?
Point 1 has more height
500
When a roller coaster reaches the bottom of a steep slope, it has ______ potential energy and ______ kinetic energy.
Low potential energy and high kinetic energy
500
Give an example of where the graph has a balanced force.
Between 0-3 hrs
500
Which student has the greater speed? If the students continue at a constant speed, what would be their distance at 80 seconds?
Student 1
Student 1 distance at 80s= 52.8 m
Student 2 distance at 80s= 26.4 m