Year 8 Science WorksheetForms of Energy
Name: ___________________________ Class: ___________ Date: ___________
Part A – Matching
Match each type of energy with its correct definition. Write the correct letter.
Energy Type Letter
1. Kinetic Energy ____
2. Potential Energy ____
3. Thermal Energy ____
4. Electrical Energy ____
5. Light Energy
____
6. Sound Energy
____
Definitions
A. Energy carried by moving electric charges
B. Energy stored because of an object's position or shape
C. Energy produced by vibrating objects
D. Energy that allows us to see objects
E. Energy of moving objects
F. Heat energy caused by moving particles
Part B – Fill in the Blanks (12 marks)
Choose from the words below.
Word Bank
stored • moving • electricity • vibrations • hotter • light
1.
2.
3.
4.
5.
6.
Kinetic energy is the energy of __________ objects.
Potential energy is __________ energy.
Thermal energy increases when objects become __________.
Electrical energy is carried by __________.
Sound is produced by __________.
The Sun gives off __________ energy.
Part C – Identify the Energy
Write the main type of energy shown.
1. A child riding a bicycle.
2. A stretched rubber band.
3. A glowing light bulb.
4. A boiling kettle.
5. A speaker playing music.
6. A battery powering a torch.
Part D – Multiple Choice (10 marks)
Circle the correct answer.
1. Which type of energy does a moving skateboard have?
A. Potential
B. Kinetic
C. Sound
D. Thermal
2. Which object stores potential energy?
A. A ball sitting on a shelf
B. A rolling ball
C. A loudspeaker
D. A torch
3. Which energy travels as waves that our eyes can detect?
A. Electrical
B. Sound
C. Light
D. Thermal
4. Which energy is produced when particles move faster?
A. Thermal
B. Potential
C. Sound
D. Electrical
5. Which device mainly uses electrical energy?
A. Battery-powered fan
B. Football
C. Book
D. Rope
Part E – Energy Transformations (12 marks)
Complete the energy changes.
Example:
Battery → Electrical → Light
1. Flashlight
Chemical → __________ → __________
2. Toaster
Electrical → __________
3. Television
Electrical → __________ + __________
4. Electric fan
Electrical → __________ + __________
5. Campfire
Chemical → __________ + __________
6. Person running
Chemical (food) → __________ + __________
Part F – Short Answer
Answer in complete sentences.
1. What is kinetic energy?
2. Give one example of potential energy.
3. Explain why hot objects have more thermal energy than cold objects.
4. Name one device that uses electrical energy and explain what it does.