When an object moves, stops moving, changes speed, or changes direction, how do scientists describe that condition?

Answers

Answer 1

Answer: Drop "moves" from the list for a moment.

You can also drop "stops moving", because that's included in "changes speed"
(from something to zero).

When an object changes speed or changes direction, that's called "acceleration".

I dropped the first one from the list, because an object can be moving,
and as long as it's speed is constant and it's moving in a straight line,
there's no acceleration.

I think you meant to say "starts moving". That's a change of speed (from zero
to something), so it's also acceleration.

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When light moves from one medium to another it can be ______________

Answers

When light moves from one medium to another it can be Refraction

Explanation:

Refraction is the term used to define light movement travelling from one medium to another. Light waves are propagated, will cross the boundary and their direction is also changed during the process of refraction.

Velocity is also induced in the light which keeps changing during its propagation through mediums. There are other phenomenons of light like reflection, interference, diffraction which are slightly different from each other and hence proper understanding is required to differentiate between them.

when light moves from one medium to another it can be refracted

Lenses in eyeglasses change the direction of light rays to help the lens of the eye form an image inside the eye . What process take place in the eyeglass lenses ?

Answers

To make this process happen, the eye contains a lens between the retina and the pupil. The lens and the cornea, a transparent covering, then work together, focusing the image on the retina. Vision problems occur when the image focused on the retina is focused either too far back, resulting in farsightedness or too far in, resulting in nearsightedness. In combination with these conditions, glasses may also work to assist with those suffering from crossed eyes, where the eyes refuse to focus together, which produces two of the same object in the field of vision, which results in blurriness of both objects. How glasses correct these problems is determined by what kind of lens the glasses are made of. The two types of lenses are the plus and minus lens. The plus lens has a convex shape, which focuses images on the retina when the eye’s lens originally focuses the image too far back. The minus lens has a concave shape, which focuses images on the retina when the eye’s lens originally focuses the image too close. Different strengths of these lenses determine how far back or how far forward the focus should be brought so that the image is displayed correctly on the retina.

Can someone please answer these two science questions. Please don't answer with just anything for the points, I genuinely need the answers. Thanks! :)

Answers

Answer:

45 meters

Explanation:

notice that is you multiply the time with the speed the units cancel to get distance.

therefore

distance=velocity(time)

distance=(3)15

distance =45 meters

Answer:

1. the speed is constant

2. the average speed is .5 m/s

Explanation:

I have attached a graph of the data in excel.

from excel i got the equation of the line to be y=.5x with y being distance and x being time.

the function is a position function so if you take the derivative of it you get the velocity which is .5.

since the derivative is a constant the the speed does not change and the average velocity is the derivative.

What was the experiment carried out by Hershel & Ritter.

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Hershel discovered something called Infrared light. It was basically an experiment outdoors and you have a light and when the light hits another surface (like a deck) then that surface heats up

How many squares for three traits?

Answers

you just need one square but with 16 little boxes
list out all the possible combination for each set of traits
add then to the each side of the box and match them up

What other property of the object increases as well?

Answers

The only thing on the list that's a property of
the object is inertia, so that must be it.

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