PHYSICS HIGH SCHOOL

Julie finds a snail on the sidewalk and wants to know whether or not the snail moves throughout the day. She places a single mark on the sidewalk next to the snail.What will Julie use the mark for initially?

Answers

Answer 1
Answer: To make a base line mark to know where she started measuring the snails movement, at the end of the day she can measure from her first line to her last to see how far the snail went.
Hope this helped!

 
Answer 2
Answer:

Answer:

To check the movement of the snail.

Explanation:

the answer was right :)

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Which is occurring when work is being done? energy is being reverted. energy is being decreased. energy is being increased. energy is being transferred.?

Answers

The work is an effect that is observed due to the application of force. Taking the concern of work-energy principle, the work is done when there is a transfer of energy take place.

What is Work Done?

When some magnitude of the force is being applied on an object to displace, then the term used to describe the effect is known as work done.

The mathematical expression for the work done is given as,

W = F × d

here,

F is the magnitude of applied force.

d is the displacement.

If we compare work with energy then, Energy, on the other hand, is the ability to do work. According to the work-energy principle, a change in the kinetic energy is equivalent to the net work done by the object. Therefore, energy is being transferred from one point to another when work is being done.

Thus, we can conclude that the work is done when a transfer of energy takes place.

Learn more about the work done here:

brainly.com/question/13594876

Answer;

Energy is being transferred

Explanation;

  • Work is the force applied over a given distance, in other words work is the product of force and distance.

Work = force × distance.

  • Work is measured in Joules.
  • Energy on the other hand, is the ability to do work.
  • According to the principle of work-energy a change in the kinetic energy is equivalent to the net work don e by the object. Therefore, when work is being done energy is being transferred from one point to another.

Which force causes a wagon to speed up as it rolls down a hill?

Answers

Answer: The correct answer is force of gravity.

Explanation:

Gravity is the force with which one body attracts the other body.

It goes down a hill with the increase in the kinetic energy. The kinetic energy is due to the motion of a wagon.

At the hill the gravity is lesser in comparison to the gravity on the surface of the earth.

When a wagon rolls down a hill it speeds up. Here, the earth attracts the wagon with the force of gravity. It accelerates down a hill with an acceleration due to gravity.

Gravity is the only one helping it.

As current flows through a uniform wire, the wire gets hotter because the electrons stop moving and therefore transform their lost kinetic energy into thermal energy in the wire. as current flows through a uniform wire, the wire gets hotter because the electrons stop moving and therefore transform their lost kinetic energy into thermal energy in the wire. a. True


b. False

Answers

True?... I could be wrong

Answer:

The answer is false

Explanation:

I hope this helps!!
If you have any questions let me know!!

An electric fence displays a warning sign about voltage and amperage of the fence. How would amperage and voltage affect the power of the fence?

Answers

Yes it is true that electrical fences displays a warning about voltage and amperage of the fence. It has to be first understood that power is directly proportional to voltage as well as current. So higher the voltage or higher the current flowing through the fenses, higher will be the power. So any person touching the fence should always be aware of the voltage and current flowing through the fence, otherwise it can be very deadly. Sometimes it can be seen that a high voltage is being passed through the fence and the current passed is comparitively low. This will not decrease the total power flowing through the fence.

Objects on the moon's surface have an acceleration due to gravity one-sixth that on the earth's. What would the 40 kg boy weigh on the moon? (Round answer to nearest tenth.)

Answers

acceleration is the same as the gravitational force. On earth that is 9.81 m/s^2. F=ma so if the acceleration is 1/6, then so if the force (weight). 40/6 N is your answer.

What is the total magnification of a microscope with two lenses when one lenses has a magnification of 15 and the other lens has magnification of 30- 15

- 30

- 45

- 450

Answers

Answer:

45 easy and if u ever need anything holla
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