B Milby 3rd 6 Weeks CBA Review 24/25

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What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like atoms and molecules. It is released or absorbed during a chemical reaction.

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What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object. It is the energy associated with the motion and position of an object.

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What is the process of energy transformation?

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Energy transformation is the process of changing energy from one form to another, such as converting chemical energy into mechanical energy.

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What is an example of chemical energy being converted to mechanical energy?

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A grasshopper jumping from a predator is an example of chemical energy (from food) being converted into mechanical energy (movement).

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What energy transformation occurs in a ceiling fan?

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In a ceiling fan, electrical energy is transformed into mechanical energy to rotate the blades.

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What is the tilt of the Earth and its effect on seasons?

Back

The tilt of the Earth (approximately 23.5 degrees) affects the angle of sunlight received, leading to different seasons in different hemispheres.

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How does the tilt of the Northern Hemisphere affect daylight?

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When the Northern Hemisphere is tilted away from the sun, it experiences shorter daylight hours compared to when it is tilted toward the sun.

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What happens when a match is struck against sandpaper?

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When a match is struck against sandpaper, the friction generates heat, causing the chemical energy in the match to convert into thermal energy and light energy.

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What is thermal energy?

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Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of particles in an object.

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What is light energy?

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Light energy is a form of electromagnetic radiation that is visible to the human eye. It is produced by the movement of photons.