c8_Conservation of Energy & Total Mechanical Energy

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

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or configuration, often related to its height above the ground.

Front

What is kinetic energy?

Back

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

Front

How does energy convert from potential to kinetic energy?

Back

As an object falls, its height decreases, converting potential energy into kinetic energy, increasing its speed.

Front

What is total mechanical energy?

Back

Total mechanical energy is the sum of potential energy and kinetic energy in a system.

Front

What happens to total mechanical energy in a closed system?

Back

In a closed system, the total mechanical energy remains constant, assuming no external forces like friction are acting.

Front

At which point on a roller coaster is potential energy highest?

Back

Potential energy is highest at the highest point of the roller coaster, where the speed is lowest.

Front

At which point on a roller coaster is kinetic energy highest?

Back

Kinetic energy is highest at the lowest point of the roller coaster, where the speed is greatest.

Front

What is the formula for calculating potential energy?

Back

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

Front

What is the formula for calculating kinetic energy?

Back

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