What is true of energy?

Betsy depends on her electric alarm clock every morning to get up in time for school. What energy transformation happens in Betsy’s alarm clock to wake her up in the morning?

Francesca connected several light bulbs to a battery. After the lights bulbs were on for a few minutes, she placed her hand near one of the bulbs and discovered it was warm.

rucks, cars, and motorcycles, depend on internal combustion engines to move.

As Marsha reached to plug her cell phone power cord into an outlet, she heard the snap of a blue spark between the outlet and her plug. What transformation of energy did Marsha observe?

Energy can be transformed from one form to another in a system. What happens in all transformations of energy?

Boris used a nutcracker to open some walnuts. Each time he squeezed the nutcracker, he heard the walnut shell crack. What transformation of energy did Boris cause to happen when he cracked the walnuts?

What is the correct energy transformation in a flashlight?

Fausto wakes up in the morning for school when his mother turns on the light in his bedroom. His brother Carlos wakes up only when he hears his alarm clock. Which of the following statements is correct?

The motions of the toy robot shown below are driven by an electric motor. The power source for the toy's motor is a pair of batteries. Based on this information, which of the following ​BEST summarizes the energy transformations taking place in the t

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