Show:
Potential and Kinetic
Energy Transformations
Types of Energy
Heat transformation
100
The faster an object moves, the more ______ energy it has
Kinetic Energy
100
a roller coaster reaches the top of the hill, pauses, and then rolls down the other side.
Potential --> Kinetic
100

Energy in motion

Kinetic

100

Value used of how 1 kg of an object increases by 1C

Specific Heat

200
The more mass an object has, the more ______ energy
Kinetic Energy
200

A wind turbine is spinning that goes to generate electricity.

 Kinetic --> Electric

200

Energy stored based on position

Gravitational Potential Energy

200

A negative heat energy value represents what?

Energy being released. (Decreased in Temperature)

300
This type of energy depends on an objects height or position
Gravitational Potential Energy
300

A 4kg ball is held a 5m high is dropped. Assuming no air resistance (100% efficiency) what is the velocity as it reaches the ground?

9.9m/s

300

Energy stored in springs

Elastic Potential Energy

300
Silver metal has a specific heat of 0.233 J/gC. You have a 9.8g plate that is heated to 105C and then cooled to 21C. How much energy was released?

191.8J

400
When a spring is stretched as far as it can go, it is said to have a lot of _______ energy
Potential
400

A 10kg ball is thrown into the floor and hits the floor at 12m/s if 75% of the energy is returned as potential, what height will the ball return to.

5.5m

400

Energy used that changes the temperature of an object

Thermal energy

400

A block of aluminum weighing 140 g is cooled from 98.4°C to 62.2°C with the release of 1080 joules of heat. From  this data, calculate the specific heat of aluminum. Check your answer with a specific heat table.

0.213J/gC

500
Kinetic energy depends on both ____ and ______
Mass and Velocity
500

A 10N/m spring is stretched to 5m long that hits a 15kg ball. If 50% of the springs energy is transferred into the ball what will be the velocity of the ball?

2.89 m/s

500

Label the energy transfers from a spring loaded system that spins a fan used to cool down food.

Elastic --> Kinetic --> Thermal

500

In a calorimeter, 100g water's initial temperature is 20C and raised to 26C when a 78g block that is 100C is added. What is the specific heat of the metal block assuming that all of the heat energy is fully transferred?

Specific Heat Water = 4.18J/gC

0.435J/gC