Law of Conservation of Energy

Grade 7 Science Worksheets

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transferred or converted from one form to another

eTutorWorld Online Tutoring

Law of Conservation of Energy - Grade 7 Science Worksheet PDF

This is a free printable / downloadable PDF worksheet with practice problems and answers. You can also work on it online.

10+ Questions

Untimed

10+ Marks

Free

Printable

Downloadable

Solve Worksheet

"We really love eTutorWorld!"

"We really love etutorworld!. Anand S and Pooja are excellent math teachers and are quick to respond with requests to tutor on any math topic!" - Kieran Y (via TrustSpot.io)

View 7th Grade Online Tutoring Services

"My daughter gets distracted easily"

"My daughter gets distracted very easily and Ms. Medini and other teachers were patient with her and redirected her back to the courses.

With the help of Etutorworld, my daughter has been now selected in the Gifted and Talented Program for the school district"

- Nivea Sharma (via TrustSpot.io)

Book a Free Class

Law of Conservation of Energy

The Law of Conservation of Energy means that the total amount of energy in a closed system (like the Earth) will always stay the same.

For example, when you ride a bike, the energy you put into pedaling is converted into the energy that makes the wheels move.

But that energy doesn’t just disappear, it is still there in the form of heat and sound energy.

hte law of conservation of energy

Another example is a rollercoaster. As the rollercoaster goes uphill, it gets higher and higher in potential energy. When it goes downhill, it loses potential energy but gains kinetic energy (energy of motion).

The total amount of energy stays the same, it’s just being converted from one form to another.

So, in simple terms, the law of conservation of energy states that energy cannot be created or destroyed but can be converted from one form to another and the total amount of energy remains constant.

“There have been times when we booked them last minute, but the teachers have been extremely well-prepared and the help desk at etutorworld is very prompt.

Our kid is doing much better with a higher score.”

- Meg, Parent (via TrustSpot.io)

7th Grade Tutoring

eTutorWorld offers Personalized Online Tutoring for Math, Science, English, and Standardised Tests.

Our Tutoring Packs start at just under $21 per hour, and come with a moneyback guarantee.

Schedule a FREE Trial Session, and experience quality tutoring for yourself. (No credit card required.)

Book a Free Class

Do You Stack Up Against the Best?

If you have 30 minutes, try our free diagnostics test and assess your skills.

Free Diagnostic Test for 7th Grade

Law of Conservation of Energy FAQS

What is the law of conservation of energy?

The law of conservation of energy is the principle that energy cannot be created or destroyed, only transferred or converted from one form to another.

How is the law of conservation of energy related to the first law of thermodynamics?

The first law of thermodynamics, also known as the law of energy conservation, is essentially the same as the law of conservation of energy. The first law states that the total energy in a closed system is constant.

Can energy be lost in a system?

Energy cannot be lost in a closed system, but it can be transferred or converted from one form to another. For example, in a car engine, the chemical energy in gasoline is converted into heat and kinetic energy to move the car.

What are some examples of energy conservation in everyday life?

Examples of energy conservation in everyday life include turning off lights when not in use, using energy-efficient appliances, and walking or biking instead of driving.

How does the law of conservation of energy apply to living things?

The law of conservation of energy applies to living things in the sense that the energy they consume must come from somewhere. For example, plants convert sunlight into chemical energy through photosynthesis, which is then used to fuel their growth and reproduction. Animals, in turn, consume plants or other animals to obtain energy.

Kathleen Currence is one of the founders of eTutorWorld. Previously a middle school principal in Kansas City School District, she has an MA in Education from the University of Dayton, Ohio. She is a prolific writer, and likes to explain Science topics in student-friendly language. LinkedIn Profile

Affordable Tutoring Now Starts at Just $22.49

eTutorWorld offers affordable one-on-one live tutoring over the web for Grades K-12. We are also a leading provider of Test Prep help for Standardized Tests (SCAT, CogAT, MAP, SSAT, SAT, ACT, ISEE, and AP).

What makes eTutorWorld stand apart are: flexibility in lesson scheduling, quality of hand-picked tutors, assignment of tutors based on academic counseling and diagnostic tests of each student, and our 100% money-back guarantee.

Whether you have never tried personalized online tutoring before or are looking for better tutors and flexibility at an affordable price point, schedule a FREE TRIAL Session with us today.

*There is no purchase obligation or credit card requirement

Book a Free Class