Vocabulary
Kinetic Energy
Gravitational Potential Energy
Elastic Potential Energy
Work/Energy
100
What is Kinetic Energy?
Energy of motion
100
What is KE?
the energy of motion
100
What is GPE?
Energy of an object due to its position in the gravitational field.
100
What is EPE?
Stored energy released when an object’s shape is changed
100
If a moving objects speed increased, how was work involved?
work was done on the object by applying a force
200
What is GPE?
Energy of an object due to its position in the gravitational field.
200
What are the factors that affect KE?
Mass and Speed
200
What are the factors of GPE?
Height and Mass
200
What are the factors of EPE?
Type of Material, and amount of deformity
200
As a pendulum keeps swinging what happens to its total energy?
Decreases over time
300
What is the difference between Energy Transfer and Energy Transformation?
The change of energy from one object to another.
vs
The change of energy from one form to another
300
What is an indicator of KE?
Motion
300
What is an indicator of GPE?
Height
300
What is an indicator of EPE?
You FEEL an object being compressed or stretched
300
If a person is skate boarding down a hill, what is happening to their total energy? What energy transfer or transformation is taking place?
Total energy decreasing
energy transfer= into ground, into air
energy transformation=GPE to KE
400
What does it mean to work? What does the definition of this word?
A force (kinetic energy) that causes something to move.
400
Two bowling balls are rolling down a bowling lane at the same speed. Ball A weighs 12 pounds, while ball B weighs 16 pounds. What is true about the KE?
Ball B has more KE than Ball A
400
A lamp was moved from the floor to the top shelf of a bookcase. What happened to the lamp's GPE?
GPE increased
400
How can you change the amount of Elastic Potential Energy?
Stretching and Compressing
400
How are work and energy related?
When you do work you apply a force on an object which transforms that force into energy
500
What is energy?
the ability to do work
500
You throw a ball into the air, what happens to the KE?
The KE decreases while the GPE increases
500
Two identical balls, C and D, are dropped from two different heights.
Ball C is dropped from a height of 2 meters, while ball D is dropped from a height of 4 meters.
Which of the balls has more GPE?
Ball D because of its height
500
A pole vaulter is trying to provide enough energy to the pole so he can launch over the bar. When the pole bends and the pole vaulter launches, what kind of energy transformation is taking place?
Elastic Potential Energy to Kinetic Energy
500
What is the definition of work and what is the definition of energy?
Work: A force (kinetic energy) that causes something to move.
Energy: The ability to do work