E-4 Flashcard

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion, calculated using the formula 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. It can be gravitational, elastic, or chemical.

Front

What is elastic potential energy?

Back

Elastic potential energy is the energy stored in elastic materials as the result of their stretching or compressing.

Front

What does a velocity-time graph represent?

Back

A velocity-time graph shows how the velocity of an object changes over time, indicating acceleration and deceleration.

Front

What is the principle of conservation of energy?

Back

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

Front

How does friction affect energy transfer?

Back

Friction converts kinetic energy into thermal energy, resulting in energy loss in the system.

Front

What is the relationship between work and energy?

Back

Work is done when a force causes an object to move, resulting in a transfer of energy. Work = Force x Distance.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.

Front

What is the difference between system and surroundings in energy transfer?

Back

The system is the part of the universe being studied, while the surroundings are everything outside the system that can exchange energy with it.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, calculated as the change in velocity divided by the time taken.