Kinetic Energy
Kinetic energy is defined as this.
What is the energy associated with motion?
Potential energy is defined as this.
The stored energy that has potential to be converted into kinetic energy.
This law says that energy cannot be created or destroyed, only transferred or transformed.
What is the law of conservation of energy?
In a closed system, energy is always this.
A moving car has this kind of energy.
What is kinetic energy?
The formula for kinetic energy is expressed as this.
1/2 mv2
The formula for potential energy is expressed as this.
What is mgh?
When a ball bounces, energy transfers back and forth between these two forms.
What is kinetic energy and potential energy?
If a falling object has 50J of potential energy at the top and experiences no friction, it has this much kinetic energy at the bottom.
What is 50J?
A hair straightener uses this kind of energy to straighten your hair.
What is thermal energy?
These two factors affect an object's kinetic energy.
What are the mass and velocity/speed of an object?
These three factors affect the potential energy of an object.
What are the mass of an object, the height of the object, and the acceleration due to gravity?
Energy can be transferred to the environment as this, especially when friction is involved (Think about rubbing your hands together).
What is heat?
At the highest point of a swing, kinetic energy is this value, and the potential energy is at this value.
What is zero and maximum?
This is the kind of energy you have before sliding down a slide.
What is potential energy?
A 1kg ball drops from some height. Its kinetic energy is greatest at this moment.
What is just before it hits the ground?
A 1kg ball is dropped from some height. Its potential energy is greatest at this moment.
What is right after it's dropped?
A ball rolling up a ramp is an example of this type of energy transforming into this type of energy.
What is kinetic to potential?
At the highest point on a swing, the kinetic energy is this and the potential energy is this.
What is zero and maximum?
Solar panels transform this kind of energy into electric potential energy.
What is light energy?
The kinetic energy of a 4kg object moving at 3m/s.
What is 18J?
The potential energy of a 2kg book is on a 1.5m tall shelf.
What is 30J?
A car engine works by turning this energy in the gasoline into kinetic energy for the car.
What is chemical energy?
A 3kg rock drops from 10m. Using conservation of energy, it's speed just before hitting the ground is this.
What is 14 m/s?
Inefficiencies in a car engine cause kinetic energy to be "lost" mainly as these two forms of energy.
What are sound and thermal energy.