Energy Calculations

Front

What is thermal energy?

Back

Thermal energy is the form of energy that is associated with the temperature of an object. It is the energy that comes from the heat of an object.

Front

How is kinetic energy calculated?

Back

Kinetic energy (KE) is calculated using the formula: KE = 0.5 * mass * velocity^2.

Front

What factors determine potential energy?

Back

Potential energy depends on the mass of the object and its height above the ground. The formula is: PE = mass * gravity * height.

Front

What is the Law of Conservation of Energy?

Back

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

If a 0.3 kg marble is moving at 6 m/s, what is its kinetic energy?

Back

The kinetic energy of the marble is 5.4 J.

Front

How do you find the height of an object using kinetic energy?

Back

To find the height, first calculate the kinetic energy, then set it equal to gravitational potential energy (GPE) to solve for height.

Front

What is gravitational potential energy?

Back

Gravitational potential energy (GPE) is the energy an object possesses due to its position in a gravitational field, calculated as GPE = mass * gravity * height.

Front

What is the formula for calculating gravitational potential energy?

Back

The formula for gravitational potential energy is: GPE = mass * gravity * height.

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What is the relationship between kinetic energy and potential energy in a closed system?

Back

In a closed system, the total energy remains constant; kinetic energy can be converted to potential energy and vice versa.

Front

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

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