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WorksheetsWork and Energy
Total questions: 15
Worksheet time: 8mins
The sum of kinetic and potential energy is called...
sum energy
nonmechanical energy
mechanical energy
space energy
The total amount of energy
varies
can cancel out to zero
goes out into space
remains constant
work is done when
the object you apply a force on moves
any force is applied to an object, regardless if it moves or not
the force is zero
the force and direction of motion are perpendicular
Which form of energy is involved in a pencil falling from a desk?
kinetic
nonmechanical
gravitational potential
elastic potential
An object in motion
potential energy
elastic potential energy
nonmechanical energy
kinetic enerty
Energy stored due to the interactions between objects
potential
positional
total
kinetic
What is the rate at which energy is converted?
potential energy
kinetic energy
mechanical energy
power
The ability to do work is called
energy
force
power
machine
A device that changes the force or increases the motion from work is a
computer
engineer
automobile
machine
All are examples of a simple machine EXCEPT
a lever
a pulley
motor
wheel and axle
A moving van burns gasoline in its engine. During this process it converts
chemical energy to mechanical energy
kinetic energy to potential energy
thermal energy into electrical energy
mechanical energy into kinetic energy
A juggler is juggling four bean bags. When does each bean bag have the greatest potential energy with respect to the floor?
just after it is thrown
just before it is caught
when it reaches its highest point
when it is moving at its greatest speed
What is the unit of report for energy?
Joules
meters
newtons
grams
What is the correct classification of the following objects?
Toy boat floating - potential energy
Boy standing at the top of a slide- kinetic energy
Girls running on a path- potential energy
Child holding a ball- potential energy
The equation for force is
W= fd
W= fN
W=mv
W=wh
