Energy Changes in Our Lives

What is energy change?

• Energy change is the transformation of energy from one form to another.

• Energy change refers to the amount of energy consumed in a process.

• Energy change is the measurement of energy in a closed system.

• Energy change is the increase of temperature in a substance.

Can you name a type of energy change that happens when you eat food?

• Nuclear energy to sound energy

• Electrical energy to gravitational energy

• Mechanical energy to elastic energy

• Chemical energy to kinetic and thermal energy

How does a light bulb change energy?

• A light bulb changes electrical energy into light energy.

• A light bulb changes kinetic energy into potential energy.

• A light bulb changes light energy into sound energy.

• A light bulb changes thermal energy into chemical energy.

What happens to energy when you ride a bicycle?

• Energy is converted from chemical to mechanical and then to kinetic energy while riding a bicycle.

• Energy is only stored as potential energy while riding a bicycle.

• Energy is lost as heat and never converted during cycling.

• Energy is transformed into sound energy exclusively while riding a bicycle.

Can you give an example of energy change in nature?

• Photosynthesis in plants converting sunlight into chemical energy.

• Nuclear fission in power plants generating heat.

• Burning fossil fuels releasing carbon dioxide.

• Wind erosion shaping landscapes over time.

What type of energy is used when you turn on a fan?

• Chemical energy

• Thermal energy

• Mechanical energy

• Electrical energy

How does energy change when you play a musical instrument?

• Energy is only transformed into light energy when playing a musical instrument.

• Energy is converted to thermal energy when playing a musical instrument.

• Energy remains constant while playing a musical instrument.

• Energy changes from kinetic energy to sound energy when playing a musical instrument.

Why is understanding energy changes important for our daily lives?

• Energy changes are only relevant for scientists.

• Understanding energy changes is crucial for optimizing energy use and promoting sustainability in daily life.

• Understanding energy changes is unnecessary for household tasks.

• Energy changes do not affect our environmental impact.