24-25 Energy Study Guide #16-20

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as converting chemical energy in a battery to electrical energy in a car.

Front

What are three forms of energy?

Back

1. Kinetic Energy: Energy of motion. 2. Potential Energy: Stored energy based on position. 3. Thermal Energy: Energy related to temperature.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state, such as an object at height or a compressed spring.

Front

How does mass affect potential energy?

Back

Potential energy increases with mass. For example, if two objects are at the same height, the one with greater mass has more potential energy.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of particles in an object.

Front

What happens to energy during a fall?

Back

As an object falls, its potential energy decreases while its kinetic energy increases, assuming no energy is lost to friction or air resistance.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is friction and how does it relate to energy?

Back

Friction is a force that opposes motion, converting kinetic energy into thermal energy, which is often seen as wasted energy.

Front

What is the relationship between speed and kinetic energy?

Back

Kinetic energy increases with the square of the speed. Doubling the speed of an object quadruples its kinetic energy.