Select one instrument which work by using electric energy.
solar vehicles
solar water heater
solar stove
refrigerator
Choose example of work done to the given activities.
Reading books
Drawing
Talking
Lifting up the books
Give one example for work not donefor the given activities?
Rowing boat
Pushing vehicle
Fetching water from well
If an object does not move by an activity it is called
work done
force
direction
work not done
Which activity is needed to open a door?
pull
push
pull and push
lift
