Work and Energy Flashcard

Front

What does the law of conservation of momentum state?

Back

The momentum of any closed, isolated system does not change.

Front

What type of energy is related to the temperature of an object?

Back

Thermal energy.

Front

What does the law of conservation of angular momentum state?

Back

If no net external torque acts on an object, then its angular momentum does not change.

Front

What is represented by the equation FΔt = pf − pi?

Back

Impulse-momentum theorem.

Front

What happens to a skater's energy as they ride down a hill?

Back

The skater has kinetic energy while moving.

Front

Define kinetic energy.

Back

The energy an object possesses due to its motion.

Front

What is potential energy?

Back

The energy stored in an object due to its position or configuration.

Front

Explain the concept of work in physics.

Back

Work is done when a force causes an object to move in the direction of the force.

Front

What is the formula for calculating work?

Back

Work = Force × Distance × cos(θ), where θ is the angle between the force and the direction of motion.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.