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Science 8
Energy Questions
Question | Answer |
---|---|
What is energy? | The ability to do work. |
What does it mean to "do work?" | It means to cause a change in something. |
A baseball flies through the air and hits a window and breaks the glass into small pieces. The moving baseball has what in it?? | Energy |
What is energy from the transport of electrons? | Electrical Energy |
What is energy released from chemical bonds? | Chemical Energy |
What do we call the type of energy when light is released? | Radiant Energy |
What do we call the type of energy when heat is released? | Thermal Energy |
Sunlight is an example of what type of energy? | Radiant Energy |
Lava is an example of what type of energy? | Thermal Energy |
When we digest our breakfast - what type of energy is used? | Chemical Energy |
A light bulb is an example of what type of energy? | Electrical Energy |
The energy of motion is called ______________ | Kinetic Energy |
Kinetic energy depends on mass and __________________ | velocity |
Stored energy is called ___________________ | potential energy. |
A roller coaster car sitting on top of the track has what type of energy? | Potential Energy |
A roller coaster car moving up and down the track has what type of energy? | Kinetic Energy |
What type of potential energy is stored in an object based on its height and mass? | Gravitational Potential Energy |
What is the formula for GPE (gravitational potential energy) | GPE = mgh |
What is the law that states energy cannot be created or destroyed - only transformed and transferred. | Law of Conservation of Energy |
KE = 1/2mv2 What is this formula for? | Kinetic Energy |
What is the unit for energy? | Joules (J) |
What is the total amount of kinetic and potential energy in a system? | Mechanical Energy |