Conceptual physics Study Questions with Answers
Watt - Answer-joule per second
/.energy - Answer-the ability to do work
/.joule - Answer-a Newton meter of work
/.potential energy - Answer-stored energy
/.kinetic energy - Answer-energy of motion
/.mechanical energy - Answer-the energy due to the position or the movement of
something
/.efficiency - Answer-the ratio of useful work output to total work input
/.power - Answer-the rate at which work can be done
/.fulcrum - Answer-the pivot point in a lever system
/.mechanical advantage - Answer-the ratio of output force to input force for a machine
/.law of conservation of energy - Answer-energy cannot be created nor destroyed: it
may be transformed from one form to another, but the total amount of energy never
changes
/.work - Answer-whenever a forces is exerted on an object and that object moves as a
result of that force
/.machine - Answer-a device for multiplying forces or simply changing the direction of
forces
/.lever - Answer-one of the simplest machines in which a non-bending bar turns on a
pivot point to lift a load
/.pulley - Answer-a kind of type 1 level that is used to change the direction of a force
and when properly used can multiply forces
/.in physics, work is defined as... - Answer-force times distance
/.the unit of work is a..... - Answer-joule
Watt - Answer-joule per second
/.energy - Answer-the ability to do work
/.joule - Answer-a Newton meter of work
/.potential energy - Answer-stored energy
/.kinetic energy - Answer-energy of motion
/.mechanical energy - Answer-the energy due to the position or the movement of
something
/.efficiency - Answer-the ratio of useful work output to total work input
/.power - Answer-the rate at which work can be done
/.fulcrum - Answer-the pivot point in a lever system
/.mechanical advantage - Answer-the ratio of output force to input force for a machine
/.law of conservation of energy - Answer-energy cannot be created nor destroyed: it
may be transformed from one form to another, but the total amount of energy never
changes
/.work - Answer-whenever a forces is exerted on an object and that object moves as a
result of that force
/.machine - Answer-a device for multiplying forces or simply changing the direction of
forces
/.lever - Answer-one of the simplest machines in which a non-bending bar turns on a
pivot point to lift a load
/.pulley - Answer-a kind of type 1 level that is used to change the direction of a force
and when properly used can multiply forces
/.in physics, work is defined as... - Answer-force times distance
/.the unit of work is a..... - Answer-joule
