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Chapter 5 Nature of Energy
Question | Answer |
---|---|
What is energy? | The ability to do work or cause change |
Name the two kinds of energy. | kinetic and potential |
What is kinetic energy? | Energy that an object has due to its motion |
What is potential energy? | Energy that is stored and held in readiness |
Name the two factors that energy depends on. | Mass and Velocity |
What is the formula for kinetic energy? | Mass x Velocity2 divided by 2 |
Which has a greater effect on kinetic energy, mass or velocity? | Velocity |
Name two types of potential energy? | Elastic and Gravitational |
What is elastic potential energy? | The energy of streched or compressed objects |
What is gravitational potential energy? | Potential energy that depends on the height of objects |
What is the formula for gravatational potential energy | Weight x Height |
What is a joule? | A measure of energy (A unit of work equal to one newton-energy) |
Name six other form of energy. | Mechanical, Thermal Chemical, Electrical Electormagnetic and Nuclear |
What is Mechanical Energy? | The energy associated with the motion or position of an object. |
What is Thermal Energy? | The total energy of the particles ina substance or material. |
What is Chemical Energy? | The potential energy stored in chemical bonds that hold chemical compunds together. |
What is Electrical Energy | The energy caried by moving electrical charges. |
What is Nuclear Energy? | Energy stored in teh nucleus of an atom. |
A bowling ball hitting bowling pins is an example of what type of energy? | Kinectic Energy |
An archer pulling back on the bow is an example of what type of energy? | Potential Energy |