Types of Energy
Potential & Kinetic
Energy Transformation
Heat Transfer
100
What type of energy is present when you pull back on a rubber band and shoot it across the room?
elastic energy
100
Which of these skiers has the greatest amount of potential energy?
The adult, because she has greater mass.
100
When a match is lit, it converts _____ energy into _______ and _______ energy.
chemical -> radiant and thermal
100
What type of heat transfer allows us to feel the sun's heat?
Radiation
200
What type of energy is present when someone is sky diving?
gravitational energy
200
What happens to the kinetic & potential energy when a roller coaster is traveling uphill?
The kinetic energy decreases while the potential energy increases.
200
You're in the marching band. You meet after school for pizza(1), then go to the game and perform at halftime where you march (2) and play the snare drum(3). What energy transformations are present?
chemical -> mechanical -> sound
200
Why does a tea kettle stop steaming after it is removed from the heat?
Thermal Equilibrium
The content of the tea kettle is the same temperature as the air around it.
300
What type of energy is present when the wind moves the blades of a windmill?
mechanical energy
300
At which point does the pendulum have the greatest amount of kinetic energy?
Point C
300
When you bounce a tennis ball, why doesn't it always bounce back to the height where it started?
The gravitational energy is being transformed into elastic, thermal and sound energy.
300
When cooking food in a pan on the stove, how does the heat get to the food?
conduction
400
What type of energy is present when a light bulb lights up?
radiant energy
400
What is a variable that affects the amount of both potential and kinetic energy an object has?
Mass & Height
400
A plant producing food by photosynthesis is an example of what energy transformation?
Radiant -> Chemical
400
The air in a room is warmer near the ceiling. What causes the warm air to rise while the cool air falls toward the floor?
convection
500
What type of energy is present in food or fuel?
chemical energy
500
At which point(s) in the picture does the pendulum have the greatest amount of potential energy?
Points 1 & 5
500
What energy transfer takes place when you use a toaster?
_______ to _______ & ________
electrical -> light & thermal
500
You leave your spoon in your hot chocolate after stirring, but then it becomes hot. How?
conduction