Energy
The energy of motion
What is kinetic energy?
What is a joule?
This type of machine exists to lower the energy input to raise an object to a higher level.
What is an inclined plane or stairs?
Energy cannot be created or destroyed
What is the conservation of energy?
Gravitational, potential or chemical
What are types of potential energy?
This is ONE of the two units for power.
This is equal to joules per second.
What is power?
These are the two ways a machine can make work easier?
When a nuclear bomb explodes, these are examples of the energy involved.
What is nuclear potential energy is converted to heat, light, and sound?
What is mechanical energy?
This is equal to mass times velocity squared, divided by 2
What is the kinetic energy?
This is the kind of work done by a gasoline engine.
What is an example of chemical potential energy is turned into kinetic energy?
This is the ideal mechanical advantage of a machine.
What is the input distance divided by the output distance?
Why machines never have 100% efficiency
Name 3 types of energy that are not strictly kinetic or mechanical
What are thermal, chemical, electromagnetic?
What is a joule?
This is force times distance.
This is an inclined plane wrapped around a cylinder.
What is a screw?
When you increase an object's thermal energy.
What is getting warmer?
The formula for gravitational potential energy.
What is mgh?
This is the output force divided by the input force of a machine.
What is the AMA (Actual Mechanical Advantage)?
This is an example of when gravity is not doing work on an object.
What happens when gravity is not in the direction of an objects motion?
This is an example of two inclined planes back to back on a lever.
What is an ax?
These are the actual units in a Newton.
What is kg times m over seconds squared?