Energy
_______ is the ability to do work.
What is energy?
______ energy is the energy associated with moving charge particles.
What is electrical?
The force that a person exerts on a machine.
What is input force?
Scientist use the ______ _______ _________ as a measure of a machine's mechanical advantage.
What is ideal mechanical advantage?
The amount of work done each second is called ______.
What is power?
______ energy is energy that is stored as a result of position or shape.
What is potential?
___________ energy is the a form of energy that is reflected or emitted from objects and travels in the form of waves.
What is electromagnetic?
The force exerted by a machine.
What is output force?
A small meteoroid is approaching Earth. It has a mass of 120.0 kg and a speed of 20.0 m/s. The amount of kinetic energy the meteoroid has is _____.
24,000 J
The SI unit of power is the _____?
What is watt (W)?
_______ energy is the energy an object has due to its motion.
What is kinetic?
________ energy is a form of mechanical energy and is carried by sound waves.
What is sound?
The distance the input force is applied is called ________.
What is input distance?
If the input distance of a ramp is 3.0m and the output distance of a ramp is 1.0m, the IMA would equal______.
What is 3?
A ______ is a unit of work.
What is a joule?
When objects become warmer, their ______ energy increases.
What is thermal?
_________ energy can be released in a process called nuclear fission.
What is nuclear?
The distance the output force is exerted through, (or how far the load moves.)
What is output distance?
The kinetic energy of a 74.0kg man traveling in a car at the speed of 52.0 m/s would be ______.
What is 100,048 J?
A watt is equal to ______ joule per second.
What is one?
The energy store in the bonds of gasoline is ________ energy.
What is chemical?
The process of energy changing from one form to another is called ________ _________.
What is energy conversion?
Knowing the input and output distance of a machine, allows you to calculate _________?
What is ideal mechanical advantage?
A 0.49 kg squirrel jumps from the ground to a tree branch that is 2.1 m high. The gravitation potential energy of the squirrel in the tree is _______.
What is 10.0842 J?
Machine efficiency is always less than 100% because some work input is lost due to _____?
What is friction?