Kinetic Energy
What is kinetic energy?
The energy an object possesses due to its motion.
What is potential energy?
The energy stored in an object due to its position or arrangement.
What is energy conversion?
The process of changing one form of energy into another.
Name a sport that uses kinetic energy.
Soccer, basketball, or any sport involving moving objects.
The energy of position(at rest).
Potential energy
What two things impact kinetic energy?
Mass of an object and speed.
What is GPE?
Gravitational potential energy
Describe how potential energy converts to kinetic energy.
When an object falls, its potential energy decreases while its kinetic energy increases as it gains speed.
How do engineers consider energy when designing buildings?
Engineers design buildings to optimize energy efficiency, considering factors like potential energy in structural supports.
How is the energy stored in food measured.
Kilojoules
Give an example of kinetic energy in daily life.
A moving car, a rolling ball, or a cyclist riding down a hill.
What affects gravitational potential energy?
Mass and height of an object.
Give an example of energy conversion in roller coasters.
As a roller coaster climbs, it gains potential energy, which converts to kinetic energy as it descends.
Explain how a pendulum demonstrates both types of energy.
At its highest point, a pendulum has maximum potential energy and minimum kinetic energy; at its lowest point, it has maximum kinetic energy and minimum potential energy.
Sound is what type of energy?
Kinetic energy
What is the relationship between mass and kinetic energy?
Kinetic energy increases with mass; if mass doubles, kinetic energy also doubles (if speed remains constant).
Explain how height affects potential energy.
The higher an object is, the greater its potential energy due to increased height in the gravitational field.
Is any energy lost between GPE and KE? Explain.
Energy conservation states that energy cannot be created or destroyed, only transformed from kinetic to potential energy and vice versa.
How does energy transformation relate to renewable energy sources?
Renewable energy sources convert natural energy (like solar or wind) into usable kinetic or potential energy.
What type of relationship do mass and potential energy have? What about distance and potential energy?
As mass or distance increases energy increases.
How does speed affect kinetic energy?
Kinetic energy increases with the square of speed; if speed doubles, kinetic energy increases by four times.
Describe a real-world scenario of potential energy being converted to kinetic energy.
A roller coaster at the top of a hill has potential energy that converts to kinetic energy as it descends.
Explain the principle of conservation of energy.
Energy is never lost - just converts
Discuss how potential energy is utilized in hydroelectric power.
Water stored in a dam has gravitational potential energy, which is converted to kinetic energy as it flows down to generate electricity.
The force of gravity?
9.8N