WorksheetsWork, Energy and Power
Total questions: 15
Worksheet time: 11mins
what is defined as the product of the magnitudes of displacement and the
component of the force parallel to the displacement ?
work
energy
momentum
power
When an object is carried at a constant
velocity by a force,
no work is done on the
object.
the work done is maximum on the
object.
the work is done minimum on the
object.
the work done is 100 % on the
object.
Stored energy in the form of position or condition.
potential energy
kinetic energy
momentum
mechanical energy
What is needed to calculate work?
force
distance
time
mass
A student needs 10 Newtons of force to lift a box to the top of a 2 meter shelf. How much work do they do?
12 J
8 J
20 J
5 J
A soccer player kicks a ball with 20 Newtons of force causing it to travel 100 meters. How much work is done on the ball?
200 J
80 J
5 J
2000 J
If the books is carried by a force which acts at right
angles to the motion, what is the work done?
work done is maximum
no work is done on the
books.
work done is 90J
work done is minimum
Which of these items is not part of the law of conservation of energy?
energy cannot be created
energy cannot be destroyed
energy can be transferred between forms
energy is destroyed by friction
___________________________is the energy stored in a body or
system because of its position, shape and state.
kinetic energy
mechanical energy
potential energy
energy due to spring
The SI Unit for Energy is
Joule
Newton
Calorie
Watt
Definition of work energy theorem is, the work done by the nett force on a body equals to the _________________________________
change in the body’s elestic energy
change in the body’s kinetic energy
change in the body’s gravitational energy
change in the body’s potential energy
