A
B
C
D
E
100
Kinetic energy is energy of _____ and Potential energy is _____ energy
Motion, stored
100
Between B, C, and D, which point would the roller coaster have the greatest potential energy?
C, because it is the highest point
100
Where would the ball have the greatest potential energy?
At the top of the slope
100
Where would the ball have the greatest kinetic energy?
At the bottom of the slope
100
Where does the roller coaster have the greatest kinetic energy?
B, because it is the lowest point
200
What is the law of conservation of energy?
Energy cannot be created nor destroyed, only transferred
200
What type of energy is occurring in the water?
Kinetic
200
What type of energy is occurring to the rock
Potential
200
What type of energy is occurring in the bowling ball?
Kinetic
200
When you fill your car up with gasoline, what type energy is being used and what is it converted to as you drive?
Chemical to mechanical
300
Order the following points from greatest kinetic energy to least kinetic energy
B, D, C, and A
300
At point B, if the kinetic energy is 80%, what will the potential energy be? (in percentage)
20% because they have to add up to 100%
300
Based upon the law of conservation of energy, what will happen when the one ball swings to the right and hits the other four? (all balls are the same mass)
Only one ball on the right will move as all the energy is transferred from one ball to another
300
If all the springs were in their compressed states, which one would have the greatest potential energy? (ignore the arrows)
The smallest one because it was compressed the most
300
What type of energy do these states of matter have?
All are kinetic because the molecules are either moving or vibrating (small movements)
400
What is the formula for Kinetic energy?
KE = (m x V2)/2
400
An object has 22 Joules of kinetic energy and 18 Joules of potential energy. What is its mechanical energy?
40 Joules
(22 + 18)
400
What is the constant number for g (gravity)?
9.8 m/s2
400
How do you find mechanical energy?
Add potential and kinetic energy
400
What is the formula for potential energy?
PE = mgh
500
What happens to the types of energy in this picture?
Potential energy decreases and kinetic energy increases as the ball falls to the ground
500
What is the kinetic energy of a 8 kg object moving at a velocity of 2 m/s?
16 Joules
(8 x 22)/2
500
What is the potential energy of a 12 kg object on a 3 m ledge?
352.8 Joules
500
What is the kinetic energy of a 4 kg object moving at a velocity of 1.5 m/s?
4.5 Joules
(4 x 1.52)/2
500
What is the potential energy of a 4.3 kg object that is sitting on a 2 m ledge?
84.28 Joules