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Physics

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Elwin Williamson

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4y ago
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Cards in this guide (8)
What is kinetic energy

Kinetic energy is the energy that an object has due to its motion or movement. For instance if a car drives into a wall the energy of its movement is what destroys the wall, That energy is kinetic energy.

Note: Heat is also a form of Kinetic energy because heat is the movement (vibration energy) of atoms or molecules.

What is gravitational potential energy

Gravitational potential energy is the potential energy an object has due to its position in a gravitational field. The higher an object is the greater its gravitational potential. When it falls the gravitational potential becomes kinetic energy.

Energy stored in height differences ~APEX

In a collision a vehicle that rebounds off the object it trikes experiences less force than if it crumples assuming the time is the same in both situations

false

Which of the following is the best example of an open system

an anthill

What does the law of conservation of energy imply

energy can neither be created nor we destroy

That energy can only be converted between different forms ~Apex

What did Rutherford discover that Thomson did not understand

That most of an atom's mass was packed in a central nucleus

What happens to electrons in the photoelectric effect

When you shine a certain level of light wavelength on metal, you can knock electrons off the atoms of the metal. This phenomenon was explained by Albert Einstein in 1905, for which he received a Nobel Prize in 1921.

What is the capacity to do work known as apex

Energy

-Apex

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