Kinetic & Potential Energy
Energy types
Energy Transformations
Heat Transfers
Calculations
100
What is the ability to do work?
Energy
100
When you eat fruits and vegetables, what type of energy are you consuming?
Chemical
100
Define energy transformation
An energy transformation is when energy changes from one form to another.
100
Heat is what type of energy?
Thermal energy.
100
What is the unit for energy?
Joules.
200
What is the energy of movement?
Kinetic Energy
200
What types of energy are you experiencing when you listen to music?
Sound energy
200
Describe the Law of Conservation of Energy.
Energy cannot be created or destroyed, only changed from form to form.
200
Name the three types of heat transfers
Conduction, convection, radiation.
200
What is the formula for potential energy?
PE = mgh or PE = weight x height
300
What is the energy of position?
Potential Energy
300
Describe mechanical energy.
The total energy of motion and position of an object.
300
Describe the energy transformation when you use a toaster oven.
Electrical energy is converted into thermal energy.
300
Circulating warm and cool currents in ocean water is an example of what type of heat transfer?
Convection.
300
What is the formula for kinetic energy?
(0.5)mv2
400
On a pendulum, where is the most kinetic energy found?
At the bottom of the swing. 
400
Describe two energy types that are considered kinetic energy and two that are considered potential energy.
Kinetic: thermal, sound, electrical
Potential: chemical, elastic potential, gravitational potential
400
Give an example of electrical energy transforming to light energy.
A lamp, etc.
400
The glass of a window pane feels cooler to the touch than the wood frame surrounding the glass. Why? (Use words like conductors and insulators)
Wood is a better thermal insulator than glass.
400
How much potential energy does a water droplet weighing 0.2 Newtons have with a height of 2 meters?
0.4 Joules
500
On a roller coaster, where is the most potential energy found?
At the very top of the roller coaster/before it begins.
500
Describe 4 types of energy you are experiencing right now
Light, chemical, potential, sound, etc.
500
Describe the energy transformation that a person riding a bicycle would go through, if his process starts by eating a snack in the kitchen.
Chemical --> mechanical --> thermal
500
Heat transfer always goes from ___ objects to ____ objects.
Hot objects to cooler objects.
500
How much kinetic energy does a 5 kg dumbbell have that is falling at a rate of 10 m/s?
250 Joules