PHYSICS MIDDLE SCHOOL

Do heavier objects fall slower than lighter things?

Answers

Answer 1
Answer: no, hevier things only seem to go faster because of air resistance

if you dropped two identical bottles in a vacum, with one empty and the other full, then both bottles would hit the ground at the same time
Answer 2
Answer: No. The gravitational pull on all objects -9.8m/s/s.
Because there is no mass variable in order to find the rate at which objects fall, this means that mass does not have an affect on the rate at which objects fall.
You also must consider wind resistance but that's a more in depth concept.

You can watch a video on youtube called "Hammer vs. Feather - Physics on moon". It shows how on the moon (Where there is no wind resistance) how a hammer and a feather fall at the same rate

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Why is it important for scientists to be curious?

Answers

it is important for scientists to be curious because they will never find out the answer to their curiosity unless they well find out
It's important for scientists to be curious because everyday we live in a specticul world. and as soon as we learn how to talk our language starts to get more and more advance. But then we start to ask question's that lead up to our curiosity. this is very important because we can make a difference in life. we can uncover new mysteries that appear based on a theory. 

I hopee this helped you 

What is it called when the air particles bunch up

Answers

Compression is your answer

What is the standard unit of frequency
Amplitude
Hertz
Period
Second

Answers

Hertz. And since I need 20 characters I’ll give fascinating facts. To find the velocity of a wave you multiply lambda by frequency. Frequency can be found by dividing energy by planks constant ( 6.626x10e-34) or speed divided by wavelength.

A ball rolls with a speed of 4.0 m/s across a level table that is 1.0 m above the floor. Upon reaching the edge of the table, itfollows a parabolic path to the floor. How many meters along the floor is the landing spot from the table?

Answers

Answer: 1.81m

Explanation:

Given the following:

Horizontal speed = 4m/s

Height of table = 1m

Taking the vertical component of the motion:

Using:

S = ut + 0.5 at^2

Where, S = height of table, a = acceleration due to gravity (9.8m/s^2), t = time and u = Initial Velocity in vertical direction = 0

1 = 0(t) + 0.5(9.8)t^2

1 = 4.9t^2

t^2 = 1 / 4.9

t^2 = 0.204081

t = sqrt(0.204081)

t = 0.452s

For Horizontal :

Gravitational acceleration is absent, therefore distance can be calculated using:

Distance = Velocity × time

Distance = 4m/s × 0.452s

Distance = 1.808 m

Distance = 1.81m

The gravitational attraction between two objects will ________if one object acquires more mass

Answers


The gravitational force between two objects is proportional to the
product of their two masses.  So if either object acquires more mass,
the magnitude of the gravitational attraction between them increases.

Here is a translation of the same statement, into simple English:

If you are on Earth, and your mass increases because you ate a lot,
then your weight will increase.  

Force and Motion: Force changes _________.

Answers

net force, i think could be a possible answer 
speed I'm pretty sure 
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