Energy is a vector quantity.

Important Questions on Work and Energy

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 5 - Work and Energy>Formative Assessment>Q 5

Power is a vector quantity.

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 5 - Work and Energy>Formative Assessment>Q 6

$\mathrm{kWh}$ is an unit of power.

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 5 - Work and Energy>Formative Assessment>Q 7

In a solar cell, solar energy is converted into electrical energy.

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 5 - Work and Energy>Formative Assessment>Q 8

$1 \mathrm{W}\times 1 \mathrm{J}=1 \mathrm{s}$

MEDIUM

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 5 - Work and Energy>Formative Assessment>Q 9

$1 \mathrm{J}=3.6\times {10}^6 \mathrm{kWh}$

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 5 - Work and Energy>Formative Assessment>Q 10

$\mathrm{F}=\mathrm{P}\times \mathrm{v}$

MEDIUM

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 5 - Work and Energy>Formative Assessment>Q 1

Work done by the gravitational force in rotating the satellite is _____ (zero/ maximum/ constant).

EASY

9th CBSE

IMPORTANT

Modern's abc+ Of Science - Physics For Class IX>Chapter 5 - Work and Energy>Formative Assessment>Q 2

The SI unit of energy is _____.