MEDIUM
9th CBSE
IMPORTANT
Earn 100

Differentiate between the work and energy.

Important Questions on Work, Power and Energy

MEDIUM
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 12 - Work, Power and Energy>CHAPTER TEST>Q 12
Differentiate between the potential energy and kinetic energy.
MEDIUM
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 12 - Work, Power and Energy>CHAPTER TEST>Q 13
Differentiate between the power and horsepower.
MEDIUM
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 12 - Work, Power and Energy>CHAPTER TEST>Q 14
Differentiate between the energy and power.
EASY
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 12 - Work, Power and Energy>CHAPTER TEST>Q 15
Differentiate between the work and power.
HARD
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 12 - Work, Power and Energy>CHAPTER TEST>Q 16
Illustrate the law of conservation of energy by discussing the free fall of a body.
HARD
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 12 - Work, Power and Energy>CHAPTER TEST>Q 17

Justify by giving proper reasoning whether the work done in the following cases is positive or negative:

Work done by friction on a body sliding down an inclined plane.

 

HARD
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 12 - Work, Power and Energy>CHAPTER TEST>Q 17

Justify by giving proper reasoning whether the work done in the following cases is positive or negative:

Work done by a man in lifting a bucket from a well.

MEDIUM
9th CBSE
IMPORTANT
EVERGREEN Self-Study in SCIENCE>Chapter 12 - Work, Power and Energy>CHAPTER TEST>Q 18
A man weighing 70 kg carries a weight of 10 kg to the top of tower 100 m high. Calculate the work done.