Advertisements
Advertisements
Question
Observe the picture and put a tick (✓) if work is done and put a cross (x) if work is not done.
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
Advertisements
Solution
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
APPEARS IN
RELATED QUESTIONS
A certain household has consumed 250 units of energy during a month. How much energy is this in joules?
Write true or false of the following statement.
Potential energy changes into kinetic energy when it is put to use
Fill in the blank
The ability to do work is called ______
What is potential energy ? State its unit.
Answer the following in short.
What do you understand by the term efficiency of a machine’?
Name the quantity whose unit is :
(a) kilowatt
(b) kilowatt-hour
A cell converts one form of energy into another form. Name the two forms.
A certain household consumes 650 units of electricity in a month. How much is this electricity in joules?
Can you tell?
What should be taken into account for measuring work?
Write the type of energy.












