two flasks of water, one with hot water and the other with room temperature water, which are connected by a conductive metal bar.
When initially set up, in which direction does the thermal energy between the flasks flow?
A.
Thermal energy flows from the flask on the left to the flask on the right.
B.
Thermal energy flows from the flask on the right to the flask on the left.
C.
Thermal energy does not flow between the two flasks.
D.
Thermal energy flows equally between the two flasks.
A. Thermal energy flows from the flask on the left to the flask on the right.
A piece of metal is heated and then submerged in cool water. Which statement below best describes what happens?
A.
The temperature of the water will decrease, while the temperature of the metal will increase.
B.
The temperature of the water will decrease and the temperature of the metal will also decrease.
C.
The temperature of the water will increase, while the temperature of the metal will decrease.
D.
The temperature of the water will increase and the temperature of the metal will also increase.
B. The temperature of the water will decrease and the temperature of the metal will also decrease.
In an engine, fuel and oxygen chemically react and release energy. What happens to the energy NOT used by the engine?
A.
It has been destroyed.
B.
It is lost in the form of heat and sound.
C.
It remains stored in the chemical bonds of the fuel.
D.
It is converted into methane.
B. It is lost in the form of heat and sound.
Below is an excerpt from an informational essay that a student wrote.
Based on a recent study, school lunches have been shown to be an important factor for students in schools. Students that eat a healthy lunch perform better on high stakes tests and are reportedly healthier and happier. Furthermore, good nutrition is important for children in the developmental process. So really, it's pretty obvious how important it is to make school lunches number one!
Which of the following is the best way to revise the underlined sentence for appropriate language while maintaining the same meaning?
A.
Really, it is pretty obvious how badly we need to do something with lunches.
B.
In conclusion, it is important that schools prioritize nutrition in order to maximize the benefits to children.
C.
We need to do something, because obviously we need better lunches badly.
D.
Students perform better at a statistically significant level when they are provided with something to eat.