Work and Energy - Numerical Problems

Class 11 - Physics - Work and Energy - Numerical Problems

Class 11 FBISEPhysicsWork and Energy

Work and Energy - Exercise

Class 11 - Physics - Work and Energy - Exercise

Class 11 FBISEPhysicsWork and Energy

Work and Energy - Notes

Class 11 - Physics - Work and Energy - Notes

Class 11 FBISEPhysicsWork and Energy

Work and Energy - Important Terms

Class 09 FBISE Physics - Work and Energy - Important Terms

Work and EnergyPhysics

Work and Energy - Numerical Problems

Class 09 FBISE Physics - Work and Energy - Numerical Problems

Work and EnergyPhysics

Work and Energy - Exercise

Class 09 FBISE Physics - Work and Energy - Exercise

Work and EnergyPhysics

Work and Energy - MCQs

Class 09 FBISE Physics - Work and Energy - MCQs

Work and EnergyPhysics

Work and Energy - Notes

Class 09 FBISE Physics - Work and Energy - Notes

Work and EnergyPhysics

Work and Energy - Set 1

NUST Entrance Test - Work and Energy - Set 1

NUST Entry TestWork and EnergyPhysics

An electric motor of 1hp is used to run the water pump.

Class 9 FBISE Physics - Work and energy - An electric motor of 1hp is used to run the water pump.

PhysicsWork and Energy

Calculate the power of a pump that can lift

Class 9 FBISE Physics - Work and energy - Calculate the power of a pump that can lift

PhysicsWork and Energy

A 50 kg man moved 25 steps up in 20 seconds. Find his power,

Class 9 FBISE Physics - Work and energy - A 50 kg man moved 25 steps up in 20 seconds. Find his power,

PhysicsWork and Energy

Find the power used by him to pull the block.

Class 9 FBISE Physics - Work and energy - Find the power used by him to pull the block.

PhysicsWork and Energy

A motor boat moves at a steady speed

Class 9 FBISE Physics - Work and energy - A motor boat moves at a steady speed

PhysicsWork and Energy

Find the kinetic energy and the potential energy of the cyclist.

Class 9 FBISE Physics - Work and energy - Find the kinetic energy and the potential energy of the cyclist.

PhysicsWork and Energy

(i) P.E. at its maximum height  (ii) K.E. when it hits the ground

Class 9 FBISE Physics - Work and energy - (i) P.E. at its maximum height (ii) K.E. when it hits the ground

Find its kinetic energy. (240 kJ)

Class 9 FBISE Physics - Work and energy - Find its kinetic energy. (240 kJ)

PhysicsWork and Energy

A block weighing 20 N is lifted 6 m vertically upward.

Class 9 FBISE Physics - Work and energy - A block weighing 20 N is lifted 6 m vertically upward.

PhysicsWork and Energy

A man has pulled a cart through 35 m applying a force of 300 N

Class 9 FBISE Physics - Work and energy - A man has pulled a cart through 35 m applying a force of 300 N

Physics

Name a device that converts mechanical energy into electrical energy.

Class 9 FBISE Physics - Work and energy - Name a device that converts mechanical energy into electrical energy.

PhysicsWork and Energy

Name five devices that convert electrical energy into mechanical energy.

Class 9 FBISE Physics - Work and energy - Name five devices that convert electrical energy into mechanical energy.

PhysicsWork and Energy

Which form of energy is most preferred and why?

Class 9 FBISE Physics - Work and energy - Which form of energy is most preferred and why?

PhysicsWork and Energy

Define energy, give two types of mechanical energy.

Class 9 FBISE Physics - Work and energy - Define energy, give two types of mechanical energy.

PhysicsWork and Energy

When does a force do work? Explain.

Class 9 FBISE Physics - Work and energy - When does a force do work? Explain.

PhysicsWork and Energy

Define work. What is its SI unit?

Class 9 FBISE Physics - Work and energy - Define work. What is its SI unit

PhysicsWork and Energy

Define watt.

Class 9 FBISE Physics - Work and energy - Define watt.

PhysicsWork and Energy

What is meant by the term power? Define watt.

Class 9 FBISE Physics - Work and energy - What is meant by the term power? Define watt.

PhysicsWork and Energy

What is meant by the efficiency of a system?

Class 9 FBISE Physics - Work and energy - What is meant by the efficiency of a system?

PhysicsWork and Energy

Explain by drawing energy flow diagrams through a steady-state system

Class 9 FBISE Physics - Work and energy - Explain by drawing energy flow diagrams through a steady-state system

PhysicsWork and Energy

List the environmental issues associated with energy. Highlight the solution to these issues?

Class 9 FBISE Physics - Work and energy - List the environmental issues associated with energy. Highlight the solution to these issues?

PhysicsWork and Energy

Explain by drawing a flow diagram of electricity from fossil fuels.

Class 9 FBISE Physics - Work and energy - Explain by drawing a flow diagram of electricity from fossil fuels.

PhysicsWork and Energy

State mass-energy equation $E = mc^{2}$

Class 9 FBISE Physics - Work and energy - State mass-energy equation $E = mc^{2}$

PhysicsWork and Energy

Describe the process of electricity generated by biomass?

Class 9 FBISE Physics - Work and energy - Describe the process of electricity generated by biomass?

PhysicsWork and Energy

Describe the process of electricity generated by geothermal energy?

Class 9 FBISE Physics - Work and energy - Describe the process of electricity generated by geothermal energy?

PhysicsWork and Energy

Describe the process of electricity generated by wind energy?

Class 9 FBISE Physics - Work and energy - Describe the process of electricity generated by wind energy?

PhysicsWork and Energy

Describe the process of electricity generated by solar cells?

Class 9 FBISE Physics - Work and energy - Describe the process of electricity generated by solar cells?

PhysicsWork and Energy

Explain the functioning of the solar house heating system?

Class 9 FBISE Physics - Work and energy - Explain the functioning of the solar house heating system?

PhysicsWork and Energy

How energy is obtained from the sun?

Class 9 FBISE Physics - Work and energy - How energy is obtained from the sun?

PhysicsWork and Energy

How energy is obtained from water?

Class 9 FBISE Physics - Work and energy - How energy is obtained from water?

PhysicsWork and Energy

Describe the processes by which energy is converted from one form to another concerning nuclear fuels?

Class 9 FBISE Physics - Work and energy - Describe the processes by which energy is converted from one form to another concerning nuclear fuels?

PhysicsWork and Energy

Describe the harmful waste products released by fossil fuels?

Class 9 FBISE Physics - Work and energy - Describe the harmful waste products released by fossil fuels?

PhysicsWork and Energy

Why are fossil fuels called a non-renewable form of energy?

Class 9 FBISE Physics - Work and energy - Why are fossil fuels called a non-renewable form of energy?

PhysicsWork and Energy

List non-renewable sources of energy?

Class 9 FBISE Physics - Work and energy - List non-renewable sources of energy?

PhysicsWork and Energy

Differentiate energy resources as renewable and non-renewable resources of energy with examples of each?

Class 9 FBISE Physics - Work and energy - Differentiate energy resources as renewable and non-renewable resources of energy with examples of each?

PhysicsWork and Energy

List major sources of energy?

Class 9 FBISE Physics - Work and energy - List major sources of energy?

PhysicsWork and Energy

How is energy converted from one form to another? Explain

Class 9 FBISE Physics - Work and energy - How is energy converted from one form to another? Explain

PhysicsWork and Energy

Describe nuclear energy with examples?

Class 9 FBISE Physics - Work and energy - Describe nuclear energy with examples?

PhysicsWork and Energy

Describe chemical energy with examples?

Class 9 FBISE Physics - Work and energy - Describe chemical energy with examples?

PhysicsWork and Energy

Describe light energy with examples?

Class 9 FBISE Physics - Work and energy - Describe light energy with examples?

PhysicsWork and Energy

Describe sound energy with examples?

Class 9 FBISE Physics - Work and energy - Describe sound energy with examples?

PhysicsWork and Energy

Describe electrical energy with examples?

Class 9 FBISE Physics - Work and energy - Describe electrical energy with examples?

PhysicsWork and Energy

Describe heat energy with examples?

Class 9 FBISE Physics - Work and energy - Describe heat energy with examples?

PhysicsWork and Energy

Describe mechanical energy with examples?

Class 9 FBISE Physics - Work and energy - Describe mechanical energy with examples?

PhysicsWork and Energy

List the different forms of energy with examples?

Class 9 FBISE Physics - Work and energy - List the different forms of energy with examples?

PhysicsWork and Energy

Define potential energy and derive its relation?

Class 9 FBISE Physics - Work and energy - Define potential energy and derive its relation?

PhysicsWork and Energy

Define K.E. and derive its relation.

Class 9 FBISE Physics - Work and energy - Define K.E. and derive its relation.

PhysicsWork and Energy

Why do we need energy?

Class 9 FBISE Physics - Work and energy - Why do we need energy?

PhysicsWork and Energy

Define energy, and give two types of mechanical energy.

Class 9 FBISE Physics - Work and energy - Define energy, and give two types of mechanical energy.

PhysicsWork and Energy

Derive the relation for work done by a force inclined with the displacement?

Class 9 FBISE Physics - Work and energy - Derive the relation for work done by a force inclined with the displacement?

PhysicsWork and Energy

Define work?

Class 9 FBISE Physics - Work and energy - Define work?

PhysicsWork and Energy