Energy Transfer (GG)

What is the main purpose of using a bike-powered generator in the video?

• To make popcorn

• To charge Bert

• To light up a room

• To play music

How do power plants typically generate electricity?

• By using batteries

• By spinning a wheel

• By using solar panels

• By using magnets

What do batteries do with energy?

• They destroy energy

• They create energy

• They store energy

• They waste energy

How is energy transferred to the singing fish in the video?

• Through heat

• Through wires

• Through light

• Through sound

What can sound energy do when it is very powerful?

• Make things invisible

• Make things cold

• Break things

• Turn things into gold

What happens to the average kinetic energy of particles when the temperature of a substance increases?

• It decreases

• It remains the same

• It increases

• It changes randomly

Which of the following materials is most likely to minimize thermal energy transfer?

• Metal

• Glass

• Plastic

• Foam

If two objects are made of the same material but have different masses, which object will require more energy to increase its temperature by the same amount?

• The object with less mass

• The object with more mass

• Both objects will require the same amount of energy

• It depends on the shape of the object

A student designs a device that keeps drinks cold for a longer period. Which scientific principle is most likely applied in this design?

• Maximizing energy transfer

• Minimizing energy transfer

• increasing kinetic energy

• decreasing kinetic energy

What is the primary reason metals are good conductors of thermal energy?

• Metals have high density

• Metals have free electrons that transfer energy

• Metals are shiny

• Metals are hard and durable