Vocabulary
that makes doing work easier by increasing the force applied to an object, changing the direction of an applied force, or increasing the distance over which a force can be applied.
machine
ratio the output work done by the machine to the input work done on the machine.
efficiency
ratio of the output force exerted by a machine to the input force applied to the machine.
mechanical advantage
rate at which energy is converted
power
energy that is stored by compressing or stretching an object.
elastic potential energy
transfer of energy when a force is applied over a distance;measured in joules
work
Is the ratio of output work to input work.
efficiency
energy that is stored by compressing or stretching an object.
elastic potential energy
Is a machine that does work with only one movement of the machine.
simple machine
Is a device that changes the force it increases the motion from work
machine
ratio of the output force exerted by a machine to the input force applied to the machine.
mechanical advantage
the ability to cause change, measured in joules.
energy
machine that is a combination of two or more simple machines.
compound machine
that makes doing work easier by increasing the force applied to an object, changing the direction of an applied force, or increasing the distance over which a force can be applied.
machine
Is a machine that does work with only one movement of the machine.
simple machine
is the energy an object has because of its motion; depends on the object's mass and speed.
kinetic energy
sum of the potential energy and kinetic energy of the objects in a system.
Mechanical energy
a region or sets of regions around which a boundary can be defined.
system
is the potential energy a massive object has in relation to another massive object due to gravity
gravitational potential energy
is the energy an object has because of its motion; depends on the object's mass and speed.
kinetic energy
law of conservation of energy- states that energy cannot be created or destroyed
law of conservation of energy
rate at which energy is converted
power
sum of the potential energy and kinetic energy of the objects in a system.
mechanical energy
states that energy cannot be created or destroyed
law of conservation of energy
machine that is a combination of two or more simple machines.
compound machine