Assignment Details

Work and Energy

Physics

1938 minutes

Dec 30, 11:42 AM

40.0 marks

MCQ

20 questions

IMRAN AHMAD

I am simple person. I believe in God.

Class Details

Science

Class 9th

Science

More from IMRAN AHMAD

(20)

Test

Work and Energy

class-9th

Science

0 Likes

3 Views

IMRAN AHMAD

Feb 11, 2022

Homework

Periodic Classification of Elements

class-10th

Science

0 Likes

3 Views

IMRAN AHMAD

Feb 11, 2022

Test

Carbon And its Compounds - NCERT

class-10th

Science

0 Likes

3 Views

IMRAN AHMAD

Feb 11, 2022

Test

Combustion and Flame

class-8th

Science

0 Likes

2 Views

IMRAN AHMAD

Feb 11, 2022

Test

Cell- Structure And Functions

class-8th

Science

0 Likes

3 Views

IMRAN AHMAD

Feb 11, 2022

Homework

Coal And Petroleum

class-8th

Science

0 Likes

59 Views

IMRAN AHMAD

Feb 10, 2022

Test

Materials: Metals and Non Metals

class-8th

Science

0 Likes

11 Views

IMRAN AHMAD

Feb 10, 2022

Test

Magnetic effects of electric current

class-10th

Science

0 Likes

1 Views

IMRAN AHMAD

Feb 09, 2022

Homework

Crop Production and Management

class-8th

Science

0 Likes

4 Views

IMRAN AHMAD

Feb 08, 2022

Test

Synthetic Fibres and Plastics

class-8th

Science

0 Likes

5 Views

IMRAN AHMAD

Feb 08, 2022

Test

Microorganisms: Friend and Foe

class-8th

Science

0 Likes

0 Views

IMRAN AHMAD

Feb 08, 2022

Test

Crop Production And Management

class-8th

Science

0 Likes

2 Views

IMRAN AHMAD

Feb 08, 2022

Homework

Food

class-5th

Science

0 Likes

13 Views

IMRAN AHMAD

Jan 29, 2022

Homework

Crop Production (Science)

class-7th

Science

0 Likes

10 Views

IMRAN AHMAD

Jan 24, 2022

Homework

Food

class-5th

Science

0 Likes

36 Views

IMRAN AHMAD

Jan 24, 2022

Study Material

Chemistry

class-10th

Science

0 Likes

7 Views

IMRAN AHMAD

Jan 23, 2022

Test

Electricity

class-10th

Science

0 Likes

13 Views

IMRAN AHMAD

Jan 23, 2022

Test

Motion and Measurement of Distances

class-6th

Science

0 Likes

2 Views

IMRAN AHMAD

Jan 22, 2022

Test

Work and Energy

class-9th

Science

0 Likes

10 Views

IMRAN AHMAD

Jan 22, 2022

Test

Light, Shadows and Reflections

class-5th

Science

0 Likes

18 Views

IMRAN AHMAD

Jan 22, 2022

Recommended Content

(20)

Test

Heat and Energy

class-9th

Mathematics

0 Likes

5 Views

GYANESH Nautiyal

Mar 08, 2022

Test

Work and Energy

class-9th

Science

0 Likes

10 Views

Er. Imran Sir

Jan 22, 2022

Test

Work and Energy

class-9th

Science

0 Likes

10 Views

Teacher

Feb 03, 2022

Test

Work and Energy

class-9th

Science

0 Likes

3 Views

Er. Imran Sir

Feb 11, 2022

Test

Work And Energy

class-9th

Science

0 Likes

14 Views

Soni Sir

Nov 16, 2021

Test

Work and Energy

class-9th

Science

0 Likes

9 Views

Teacher

Feb 01, 2022

Test

Work, Energy And Power

class-9th

Science

0 Likes

0 Views

Alok

Jan 16, 2022

Test

Work and Energy

class-9th

Science

0 Likes

2 Views

Tahendrasingh Yadav

Jan 24, 2022

Test

Work and Energy

class-9th

Science

0 Likes

10 Views

vikas chopra

Jan 24, 2022

Test

Work and Energy

class-9th

Science

0 Likes

0 Views

Aamir Ahmed

Jan 18, 2022

Homework

Work and Energy

class-9th

Physics

0 Likes

0 Views

Rakesh Sharma

Jan 29, 2022

Test

Work and Energy

class-9th

Maths

0 Likes

9 Views

sakshi sharma

Jan 12, 2022

Test

Work and Energy

class-9th

Prayer

0 Likes

4 Views

SUGATHAKUMARI NR

Jan 28, 2022

Test

Work and Energy

class-9th

Scienceandmathematics

0 Likes

8 Views

PRADIP PAUL

Feb 12, 2022

Homework

Work and Energy

class-9th

Physics

0 Likes

4 Views

Rakesh Sharma

Jan 29, 2022

Test

Work and Energy

class-4th

Science

0 Likes

2 Views

Poornima

Feb 09, 2022

Test

Work, Energy and Power

class-9th

Mathsandscience

0 Likes

7 Views

Rajesh

Dec 01, 2021

Test

Gravitation,Work and Energy

class-9th

Physicschemistry

0 Likes

9 Views

Aayushi Yadav

Feb 12, 2022

Test

Work, Energy and Power

class-9th

Physics

0 Likes

11 Views

Samyuktha

Dec 05, 2021

Test

Work And Energy

b-sc

Science

0 Likes

27 Views

Exclusive learning hall

Jan 01, 2022

Question Text

Question 1 :
What are the various energy transformations that occur when you are riding a bicycle?

Question 2 :
A porter lifts a luggage of 15 kg from the ground and puts it on his head 1.5 m above the ground. Calculate the work done by him on the luggage.

Question 4 :
Four men lift a 250 kg box to a height of 1 m and hold it without raising or lowering it. Why do they get tired whie holding it?

Question 5 :
If an electric iron of 1200 W is used for 30 minutes everyday, find electric energy consumed in the month of April.

Question 7 :
An electric heater is rated 1500 W. How much energy does it use in 10 hours?

Question 8 :
An object of mass, m is moving with a constant velocity, v How much work should be done on the object in order to bring the object to rest?

Question 9 :
Can there be displacement of an object in the absence of any force acting on it?

Question 10 :
Write an expression for the work done when a force is acting on an object in the direction of its displacement.

Question 11 :
The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy?

Question 12 :
Find the energy in kW h consumed in 10 hours by four devices of power 500 W each.

Question 13 :
The unit of energy and work called joule, is named after James Prescott Joule.

Question 14 :
A girl having mass of 35 kg sits on a trolley of mass 5 kg. The trolley is given an initial velocity of $4 ms^{–1}$ by applying a force. The trolley comes to rest after traversing a distance of 16 m. How much work is done on the trolley?

Question 15 :
Four men lift a 250 kg box to a height of 1 m and hold it without raising or lowering it. How much work do they do in just holding it? $(g=10 ms^{-2})$

Question 16 :
A ball is dropped from a height of 10 m. If the energy of the ball reduces by 40% after striking the ground, how much high can the ball bounce back? $(g = 10 m s^{–2})$

Question 17 :
A certain household has consumed 250 units of energy during a month. How much energy is this in joules?

Question 18 :
A rocket is moving up with a velocity $\upsilon$. If the velocity of this rocket is suddenly tripled, what will be the ratio of two kinetic energies?

Question 19 :
Let a constant force, F act on an object. Let the object be displaced through a distance, s in the direction of the force. Let W be the work done. So W = ?

Question 20 :
Certain force acting on a 20 kg mass changes its velocity from 5 $\frac{m}{s}$to 2 $\frac{m}{s}$. Calculate the work done by the force.

More from IMRAN AHMAD

Recommended Content

Learn from Anywhere on Any Device