All In One SCIENCE CBSE Class IX>Chapter 11 - Work and Energy>Check Point 04

Heena Sharma, Shubhankat Vats and, Rashmi Gupta Solutions for Chapter: Work and Energy, Exercise 4: Check Point 04

Author:Heena Sharma, Shubhankat Vats & Rashmi Gupta

Heena Sharma Science Solutions for Exercise - Heena Sharma, Shubhankat Vats and, Rashmi Gupta Solutions for Chapter: Work and Energy, Exercise 4: Check Point 04

Attempt the practice questions on Chapter 11: Work and Energy, Exercise 4: Check Point 04 with hints and solutions to strengthen your understanding. All In One SCIENCE CBSE Class IX solutions are prepared by Experienced Embibe Experts.

Questions from Heena Sharma, Shubhankat Vats and, Rashmi Gupta Solutions for Chapter: Work and Energy, Exercise 4: Check Point 04 with Hints & Solutions

EASY

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 11 - Work and Energy>Check Point 04>Q 1

What is the rate at which energy is transformed to other form called?

MEDIUM

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 11 - Work and Energy>Check Point 04>Q 2

What is the necessity of using term ‘Average power instead of power?

MEDIUM

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 11 - Work and Energy>Check Point 04>Q 3

Why it is required to take kilowatt-hour as commercial unit of energy?

MEDIUM

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 11 - Work and Energy>Check Point 04>Q 4

If a $50 W$ bulb is lighted for $3 h$ daily. Give the energy consumed in $30$ days.

MEDIUM

9th CBSE

IMPORTANT

All In One SCIENCE CBSE Class IX>Chapter 11 - Work and Energy>Check Point 04>Q 5

An electric bulb of $75 w$ burns for $4 h$ a day. What will be the cost of electricity involved in month of $30$ days at $₹ 2.5$ per unit.