Name____________________________
Period _________
Date____________________
_____ 1. What happens to the potential energy of the ball as it goes from position 1 to 3?
a. increases then decreases
b. Decreases then increases
c. Stays the same
_____ 2. What happens to the kinetic energy of the ball as it goes from position 1 to 3?
a. Increases then decreases
b. Decreases then increases
c. Stays the same
_____3. Which position has the highest kinetic energy?
a.
b.
c.
d.
e.
f.
1
2
3
4
5
6
4. Using the marble diagram above, organize the positions from least potential energy to greatest potential energy.
Least PE ___, ___,___,___,___,___ Greatest PE
5. Using the marble diagram above, organize the positions from least kinetic energy to greatest kinetic energy.
Least KE ___, ___,___,___,___,___ Greatest KE
6. Why setting up your axes correctly matters.
Y = 10x2
x
1
2
5
y
7. A marble rolled down a rollercoaster ramp. The speed and height of the marble was calculated at 7 locations. Using
the data below, calculate kinetic energy, potential energy, and total energy of the marble. Graph all three in the graph
provided.
Formulas: PE = mass x gravity x height
KE = 0.5 x mass x speed2
TE = PE + KE
Mass = 5 grams Gravity = 10 m/s2
Position
Height
(m)
Speed (m/s)
1
10
0
2
7
7.7
3
5
10
4
7
7.7
5
5
10
6
3
11.8
7
1
13.4
PE = mass x gravity x height
KE = 0.5 x mass x speed2
TE = PE+KE
Based on the heights provided, draw a picture of what this rollercoaster ramp looks like.
Describe how the PE, KE, and TE changes from point 1 to 7, and explain why.
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