Lily

A team of engineers designs a small wind turbine to power lights in a park. During testing, they measure the mechanical energy from the spinning blades and the electrical energy produced for the lights. They discover tha...

1 answer 4 months ago

Which of these shows a transformation from mechanical energy into electrical energy? Responses A A fan blowing airA fan blowing air B A wind turbine generating powerA wind turbine generating power C A lamp lighting a roo...

1 answer 4 months ago

Sam wants to show his brother how water changes state and changes from a liquid to a gas. What is the BEST way for Sam to show this change? Responses A Add ice to a bowl of water.Add ice to a bowl of water. B Heat a pot...

1 answer 4 months ago

The diagram shows ice being heated on a stove over time. What is the sequence of the states of matter as the ice is heated? Responses A Process 1 shows solid turning into gas. Process 2 shows gas turning into liquid.Proc...

1 answer 4 months ago

Question ____________ is a physical quantity that expresses the warmth or coldness of a body or environment. Responses A HeatHeat B RadiationRadiation C TemperatureTemperature D ThermodynamicsThermodynamics

1 answer 4 months ago

According to the law of entropy, when hot and cold objects meet, heat flows from hotter to colder. What would be the end result of mixing hot water and cold water? Responses A The cold water would continue to heat up.The...

1 answer 4 months ago

If a pot of boiling water is dumped into a tub of cold water, how does the hot water heat the cold water? Responses A Cold flows from the hot water to the cold water.Cold flows from the hot water to the cold water. B Hea...

1 answer 4 months ago

Which action represents a conversion of electrical energy into thermal energy? Responses A A flashlight shining in the darkA flashlight shining in the dark B A phone vibrating from a textA phone vibrating from a text C A...

1 answer 4 months ago

During a camping trip, students lit a fire using dry wood. As the fire burned, it gave off heat and light. Two children are crouched by a campfire with a kettle suspended above it. The fire is contained within a circle o...

1 answer 4 months ago

What must be added to water in order to change state from liquid to a gas? Responses A more liquidmore liquid B energy or heatenergy or heat C more oxygen atomsmore oxygen atoms D more hydrogen atomsmore

1 answer 4 months ago

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