Transformation of Energy

What is the main source of energy for the activities you do like running, walking, and swimming?

• Solar energy

• Chemical energy from food

• Nuclear energy

• Wind energy

Tags

NGSS.MS-LS1-7

NGSS.MS-PS3-5

According to the Law of Conservation of Energy, what happens to energy during transformations?

• Energy is created

• Energy is destroyed

• Energy is lost

• Total energy remains constant

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What form of energy is produced when you feel hot and start sweating after physical activities?

• Mechanical energy

• Chemical energy

• Light energy

• Heat energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How is light energy from the sun transformed into chemical energy in plants?

• Through photosynthesis

• Through respiration

• Through combustion

• Through digestion

Tags

NGSS.MS-LS1-6

In a battery-operated car, what type of energy is transformed to make the car move?

• Nuclear energy to kinetic energy

• Light energy to sound energy

• Heat energy to electrical energy

• Chemical energy to mechanical energy

What is the source of energy in a simple circuit with a light bulb?

• Wind energy

• Solar energy

• Mechanical energy

• Chemical energy from a battery

How is electrical energy produced in a power plant using fossil fuels?

• By burning the fuels to generate steam that turns turbines

• By using wind energy to generate electricity

• By direct conversion of heat to electricity

• By converting light energy into electrical energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What is the end product of energy transformations in household appliances?

• Light energy

• Sound energy

• Mechanical energy

• Heat energy

What happens to the chemical energy in a battery when a flashlight is switched on?

• It is destroyed

• It is converted to sound energy

• It is converted to electrical energy, light, and heat

• It is converted to mechanical energy

Why is it important to conserve energy according to the text?

• To increase the total amount of energy available

• To prevent energy transformations

• To limit the use of electrical appliances

• To reduce harmful pollutants and preserve fossil fuels