Chemistry Middle School

A student used a portable electric drill to remove screws from a broken wooden table. He noticed that the screws holding the table together were warm to the touch after being removed from the wood. Which statement best explains this phenomenon?
A:Electrical energy from the drill was converted into chemical energy due to conductivity.
B:The process of removing the screw concentrated the thermal energy that was already present in the wood

Answers

Answer 1

Answer:

Electricity can travel through metal, such as the screws, creating a conductor.

Answer 2

I think it’s a
Step by step

Related Questions

jenny turned on the fan in her bedroom. what energy transformation took place when she turned on the fan

Answers

The energy transformation that took place is Kinetic Energy

Answer:

Kinetic energy

Explanation:

Kinetic energy is energy when something is in motion

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List 2 Physical Changes & 2 Chemical Changes and explain why.

Answers

Answer:

A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding.

Explanation:

Answer:

A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity.

physical changes are boiling, melting, freezing, and shredding.

Explanation:

A scientist works for a drug company and runs experiments on their product with results that favor the company's product. This is an example of_________.

(A.) conflict of interest and confirmation bias.

(B.) getting the inside scoop about a product, buying company stock, and making a lot of money.

(C.) sound and reliable science practices.

(D.) all the above.

Answers

A I think because it’s biased information since it’s his own teams work

"A scientist works for a drug company and runs experiments on their product with results that favor the company's product. This is an example of conflict of interest and confirmation bias." Thus, option A is correct.

What is a conflict of interest?

Conflict of interest has been defined as the situational circumstances where the individual or the company tries to get benefitted from the actions and behaviors that present the outcomes in favor of them. This includes manipulative strategies and steps.

The scientist manipulates drug experiments and their products to favor the company and shows biased investigations and methods that benefit the company by profiting and getting something from the official work.

Therefore, option A. conflict of interest is seen in the case.

Learn more about conflict of interest, here:

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determine the volume of a substance given that the density is 2.6 g/mL and its mass 5.5 g

Answers

The answer is 10g/cm3 .

Answer:

I am pretty sure the answer is 10g/cm3 .

Explanation:

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