Work and Energy Flashcardziz

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or configuration. It is calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

How do you calculate potential energy?

Back

Potential energy (PE) is calculated using the formula: PE = mgh, where m = mass (kg), g = acceleration due to gravity (9.81 m/s²), and h = height (m).

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. It is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

How do you calculate kinetic energy?

Back

Kinetic energy (KE) is calculated using the formula: KE = 1/2 mv², where m = mass (kg) and v = velocity (m/s).

Front

What is the relationship between potential energy and kinetic energy?

Back

Potential energy can be converted into kinetic energy and vice versa. In a closed system, the total mechanical energy (PE + KE) remains constant.

Front

What factors affect kinetic energy?

Back

Kinetic energy is affected by the mass of the object and its velocity. Doubling the mass or the velocity increases the kinetic energy.

Front

What is the formula for gravitational potential energy?

Back

The formula for gravitational potential energy is PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

If an object falls, what happens to its potential energy?

Back

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

Front

What is the unit of energy in the International System of Units (SI)?

Back

The unit of energy in the SI system is the Joule (J).

Front

How does mass affect potential energy?

Back

Potential energy increases with mass. If the mass of an object increases, its potential energy at a given height also increases.