Energy
What vocabulary word describes the ability to cause a change?
Energy!
What kind of energy is the type of potential energy stored in an object due to its height above Earth’s surface.
gravitational potential energy
What vocabulary word describes the conversion of one form of energy to another.
Energy transformation
Which vocabulary word describes the transfer of energy that occurs when a force makes an object move in the direction of the force while the force acts on the object.
Work.
What is the definition of a simple machine?
A machine that does work with one moving part.
Energy from each of these sources can be _______________ into other forms of energy.
Fill in the blank.
transformed
What kind of energy is the energy that is stored in and released from the bonds between atoms.
Chemical energy
What law states that energy can be transformed from one form to another, but it cannot be created or destroyed.
Law of conservation of energy.
What are the two factors that show that work is being done?
What are the six types of simple machines?
inclined plane, wedge, screw, pulley, wheel and axel, lever
What type of energy is the energy an object has because it is in motion.
Kinetic energy
What kind of energy is the energy stored in and released from the nucleus of an atom.
nuclear energy
What kind of energy starts in the human body when digesting food?
Chemical energy
What is the equation of work?
w=fxd
work equals force times distance
What is the definition of a complex machine?
Two or more moving parts with two or more imple machines.
What kind of energy allows electric current to be carried?
electric energy
What is the energy that is the sum of potential energy and kinetic energy in a system of objects?
Mechanical energy.
A transformation from gravitational potential energy to kinetic energy.
What is the unit for work?
Joules
What are the two factors that can change the amount of work when a complex machine functions.
The amount of input force that needs to be applied or the distance the object has to move.
What kind of energy is stored energy that depends on the interaction of objects, particles, or atoms.
Potential energy
What kind of energy is the energy transferred by waves moving through the ground?
Seismic energy
What types of energy are transformed when fossil fuels are burned?
Chemical energy to kinetic energy.
What vocabulary word describes a force between two surfaces in contact with each other?
Friction
Efficiency is the ratio of output work to input work.
efficiency= input force/ output force x 100