Front

What is energy transformation?

Back

Energy transformation refers to the process of changing energy from one form to another, such as converting electrical energy into light energy.

Tags

NGSS.MS-PS3-5

Front

What are the main types of energy transformations in electrical devices?

Back

The main types of energy transformations in electrical devices include electrical to thermal, electrical to light, and electrical to mechanical.

Front

Describe the energy transformation that occurs in a light bulb when it is turned on.

Back

When a light bulb is turned on, electrical energy is transformed into thermal energy (heat) and light energy.

Front

What energy transformation occurs when water falls through a dam?

Back

When water falls through a dam, mechanical energy is transformed into electrical energy as it turns a turbine connected to a generator.

Tags

NGSS.MS-PS3-5

Front

Explain the law of conservation of energy.

Back

The law of conservation of energy states that energy cannot be created or destroyed; it can only be transformed from one form to another.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Front

What is the equation that represents the law of conservation of energy?

Back

The equation that represents the law of conservation of energy is: Energy in = energy out.

Tags

NGSS.MS-PS3-5

Front

In the context of energy transformations, what does 'mechanical energy' refer to?

Back

Mechanical energy refers to the energy associated with the motion and position of an object, such as a falling water mass turning a turbine.

Tags

NGSS.MS-PS3-5

Front

How does chemical energy transform in a battery-powered circuit?

Back

In a battery-powered circuit, chemical energy stored in the battery is transformed into electrical energy as it flows through the circuit.

Front

What is the role of a generator in energy transformation?

Back

A generator converts mechanical energy into electrical energy, allowing it to be used for various applications, such as lighting.

Front

What happens to energy in a closed system according to the law of conservation of energy?

Back

In a closed system, the total energy remains constant; energy may change forms but the total amount of energy does not change.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5