All them Forms
The Energy is Kinetic
The energy is Potential
Factors that Affect KE and PE
Do we ship Kinetic and Potential?
100
What is energy?
The ability to do work.
100
What is kinetic energy?
The energy of motion.
100
What is potential energy?
Energy stored based on an object's position or state.
100
What are the two primary factors that affect kinetic energy?
Mass and speed.
100
As kinetic energy increases, what happens to potential energy?
Potential energy decreases.
200
What is chemical energy?
Energy stored in the bonds between atoms.
200
What is an example of KE?
Answes vary.
200
What is an example of PE?
Answers vary.
200
What are the two primary factors that affect potential energy?
Mass and height.
200
As potential energy increases, what happens to kinetic energy?
Kinetic energy decreases.
300
What is sound energy?
Energy from the vibration of an object.
300
If a ball is being dropped, which of the two lines represents kinetic energy?
The green line.
300
If a ball is being dropped, which of the two lines represents potential energy?
The red line.
300
A student investigated the relationship between kinetic energy and velocity by calculating the kinetic energies of three moving objects with different masses. They then created the graph in Figure 1.
Which object has the least mass? Be sure to explain your reasoning.
Object B has the least mass, because mass is directly proportional to the kinetic energy of an object and object B has the least kinetic energy.
300
At what position did the ball have the most potential energy?
Position 1.
400
What is nuclear energy?
Energy stored in the nucleus of an atom.
400
At a certain point if the potential energy of a falling object is 20J and mechanical energy is 70J, what is kinetic energy?
50J of kinetic energy.
400
At a certain point if the kinetic energy of a falling object is 40J and mechanical energy is 100J, what is potential energy?
60J of potential energy.
400
Based on the above table, would a car with a mass of 0.18kg have more or less kinetic energy than Car E if it was also traveling at a velocity of 5mph?
It would have more kinetic energy, because kinetic energy and mass are directly proportional to each other.
400
Which of the above heights would result in a ball having the highest velocity if dropped from? Explain your reasoning.
6m, because more potential energy is converted into kinetic energy if dropped from a greater height.
500
Name 8 forms of energy.
Thermal, sound, electrical, light/electromagnetic, chemical, nuclear, elastic, and gravitational.
500
Name 4 forms of kinetic energy.
Thermal, sound, electrical, and light/electromagnetic
500
Name 4 forms of potential energy.
Chemical, nuclear, elastic, and gravitational.
500
Based on the data table, describe the relationship between gravitational potential energy, mass, and height.
The GPE is directly proportional to the height and directly proportional to the mass of the steel ball.
500
Describe what is happening to kinetic, potential, and mechanical energy in the above experiment.
The pendulum has 7J of potential energy at position W, then the potential energy is converted into kinetic energy as it travels to position X. After position X, the pendulum swings back up which converts the kinetic energy back to potential energy. The total/mechanical energy is always 7J, so it does not change.