Energy Quiz

What are the different forms of energy?

• Mechanical, thermal, chemical, electrical, electromagnetic, nuclear, and potential energy

• Red, blue, green, yellow

• Speed, distance, time, force

• Solid, liquid, gas, plasma

Give an example of potential energy and kinetic energy.

• A stationary rock (potential energy) and a sleeping person (kinetic energy)

• A light bulb turned off (potential energy) and a running cheetah (kinetic energy)

• A parked car (potential energy) and a flying bird (kinetic energy)

• A roller coaster at the top of a hill (potential energy) and a moving car (kinetic energy)

Explain the concept of mechanical energy.

• The sum of potential energy and kinetic energy in an object.

• The energy stored in food

• The energy from the sun

• The energy produced by machines

How is electrical energy produced and used?

• Electrical energy is produced by photosynthesis and used to heat buildings

• Electrical energy is produced by volcanic eruptions and used to generate food

• Electrical energy is produced by burning water and used to power vehicles

• Electrical energy is produced through various methods such as burning fossil fuels, nuclear reactions, or renewable sources like wind and solar. It is then used to power homes, businesses, and industries.

Why is it important to conserve energy?

• To reduce environmental impact, save money, and ensure future availability of resources.

• To promote environmental impact, lose money, and ensure future unavailability of resources.

• To ignore environmental impact, spend money, and ensure future scarcity of resources.

• To increase environmental impact, waste money, and deplete future availability of resources.

List three ways in which energy can be conserved at home.

• Use old, inefficient appliances

• Use energy-efficient appliances, improve insulation, and turn off lights and electronics when not in use

• Keep windows and doors open in extreme weather

• Leave lights and electronics on all the time

Explain how energy is transferred from the sun to the earth.

• By gravitational pull

• Via magnetic fields

• Through sound waves

• Electromagnetic radiation

Describe the process of conduction as a form of energy transfer.

• Heat transfer through electromagnetic waves

• Heat transfer through fluid motion

• Heat transfer through direct contact between particles of a substance.

• Heat transfer through sound waves

What is the role of convection in energy transfer?

• It plays a significant role in transferring heat from one place to another.

• It only transfers light energy

• It only transfers sound energy

• It has no role in energy transfer