WorksheetsEnergy
Total questions: 10
Worksheet time: 4mins
What is the law of conservation of energy?
Energy cannot be created or destroyed, only transferred or transformed.
Energy can be transformed into matter
Energy can be destroyed completely
Energy can be created out of nothing
Why is it important to reduce energy consumption?
To accelerate climate change and increase energy costs
To promote sustainability and reduce greenhouse gas emissions
To increase energy consumption and deplete natural resources
To conserve natural resources, reduce greenhouse gas emissions, lower energy costs, and promote sustainability.
What is energy?
The amount of work done
The ability to do work
The motion of a body
None of these
What is the energy possessed by a running car ?
Potential energy
Mechanical energy
Kinetic energy
Heat energy
Heat energy is measured in ______.
Calories
Joules
'Celsius
None of these
The SI unit of work and energy is same.Why?
Because work is same as energy
Because work derived from energy
Because energy is the ability to do work
None of these
What is the SI unit of work ?
(a)
Newton metre(Nm) and Joules(J) is same.
True
False
Work is appropriately measured by the formula ?
Fxs
FxsxCosO
None of these
Find the work done if the displacement is 5 m and force applied is 5000N.
25000Nm
25000J
25x10^3J
25000N/m
