WORK AND ENERGY
Authored by Anitta Varghese
Science
7th Grade
Used 28+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 5 pts
Work done upon a body is :
A vector quantity
A scalar quantity
Both A and B are correct
None of these
2.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
A device which converts the electrical energy into mechanical energy is called :
Dynamo
Electromagnet
Electric motor
Generator
3.
MULTIPLE CHOICE QUESTION
10 sec • 5 pts
Energy possessed by a body by virtue of its motion is called :
Potential energy
Kinetic energy
Gravitational energy
None
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
A boy pushes a book kept on a table by applying a force of 4.5 N. find the work done by the force, if book is displaced through 30 cm along the direction of push
1.10 J
1.25 J
1.35 J
None
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The kinetic energy of an object is K. If its velocity is doubled then its kinetic energy will be :
K
2K
K/2
4K
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Formula of work is?
W = Fa
W = Fs
W = Fm
W = Fms
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Unit of work is?
Newton meter
Newton meter square
Newton/meter
Meter/Newton
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