Work and Energy Flashcardziz

Front

What is the formula for calculating potential energy?

Back

Potential Energy (PE) = mass (m) × gravitational acceleration (g) × height (h)

Front

What is the formula for calculating kinetic energy?

Back

Kinetic Energy (KE) = 0.5 × mass (m) × velocity (v)²

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, typically relative to the ground.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

How does mass affect potential energy?

Back

Potential energy increases with an increase in mass, as it is directly proportional to mass.

Front

How does height affect potential energy?

Back

Potential energy increases with an increase in height, as it is directly proportional to height.

Front

What is the relationship between potential energy and kinetic energy in free fall?

Back

In free fall, potential energy is converted to kinetic energy as the object falls, assuming no air resistance.

Front

If an object has a mass of 10 kg and is at a height of 5 m, what is its potential energy?

Back

Potential Energy = 10 kg × 9.8 m/s² × 5 m = 490 Joules.

Front

If a 2 kg object is moving at 3 m/s, what is its kinetic energy?

Back

Kinetic Energy = 0.5 × 2 kg × (3 m/s)² = 9 Joules.

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.