Energy Transformations in Everyday Life

Teacher Tina introduces a science lesson on energy transformation, reviewing nine forms of energy. She provides examples of energy transformations in daily activities and appliances, such as running, using a torch, and cycling. The lesson includes workbook exercises to reinforce learning.

Which form of energy is associated with an object at a height?

• Kinetic energy

• Gravitational potential energy

• Chemical energy

• Sound energy

What type of energy transformation occurs when you run?

• Mechanical to chemical

• Light to electrical

• Gravitational to kinetic

• Chemical to kinetic and heat

When a durian falls from a tree, its energy changes from gravitational potential to what?

• Chemical energy

• Sound energy

• Heat energy

• Kinetic energy

What energy transformation occurs in solar panels?

• Chemical to electrical

• Light to electrical

• Mechanical to heat

• Sound to light

In a torch, chemical energy is first converted into which type of energy?

• Electrical energy

• Heat energy

• Mechanical energy

• Sound energy

How do plants use sunlight to make food?

• Convert sound energy to electrical energy

• Convert heat energy to mechanical energy

• Convert kinetic energy to light energy

• Convert light energy to chemical energy

What type of energy transformation occurs in a toaster?

• Light to chemical

• Electrical to heat

• Chemical to light

• Mechanical to sound

Which appliances transform electrical energy into light and sound energy?

• Iron and toaster

• Television and computer

• Solar panel and torch

• Radio and bicycle

What energy transformation occurs in a radio?

• Chemical to mechanical

• Gravitational to kinetic

• Electrical to sound

• Light to heat

What is the energy transformation when cycling a bicycle?

• Chemical to mechanical

• Light to electrical

• Gravitational to kinetic

• Sound to heat