Tell me Physics facts! Watch

Edminzodo
  • Forum Helper
Badges: 21
Rep:
?
#1
Report Thread starter 4 years ago
#1
I didn't take it for A-Level and wish I had. I might take the AS Level next year. SO TELL ME THINGS ABOUT PHYSICS! :awesome:

Posted from TSR Mobile
0
reply
alow
Badges: 19
Rep:
?
#2
Report 4 years ago
#2
Sometimes things slide down slopes. Sometimes they don't.
4
reply
interstitial
Badges: 18
Rep:
?
#3
Report 4 years ago
#3
the word physics originates from the greek word for nature :moon:
0
reply
Gax
Badges: 16
Rep:
?
#4
Report 4 years ago
#4
In terms of mass,

moon<earth<sun<...
Spoiler:
Show
Yo' mama! :rofl:
1
reply
RoyalBlue7
Badges: 14
Rep:
?
#5
Report 4 years ago
#5
 E = mc^2
0
reply
Alchemise
Badges: 0
Rep:
?
#6
Report 4 years ago
#6
9.81
0
reply
pencil_case
Badges: 1
Rep:
?
#7
Report 4 years ago
#7
Staring at the sun gives you the ability to control yellow objects with your mind.
2
reply
Protoxylic
Badges: 14
Rep:
?
#8
Report 4 years ago
#8
Something with a constant speed can accelerate whilst it's speed stays constant.
1
reply
Chlorophile
  • Study Helper
Badges: 20
Rep:
?
#9
Report 4 years ago
#9
Lots of physical equations use imaginary numbers which don't actually exist.
0
reply
pencil_case
Badges: 1
Rep:
?
#10
Report 4 years ago
#10
(Original post by Protoxylic)
Something with a constant speed can accelerate whilst it's speed stays constant.
That's interesting. How does that work?



(Original post by Arithmeticae)
the word physics originates from the greek word for nature :moon:
That's cool, I love learning the origin of words
0
reply
interstitial
Badges: 18
Rep:
?
#11
Report 4 years ago
#11
(Original post by pencil_case)
That's interesting. How does that work?

That's cool, I love learning the origin of words
acceleration is the change in velocity (which is a vector), so if you change direction you can accelerate while still having a constant speed (speed is a scalar and only has magnitude)

no problem
0
reply
Yeah dude
Badges: 16
Rep:
?
#12
Report 4 years ago
#12
The sun...
0-0
---0-0--- 0-0
---0-0---

Is actually my son
YEEEEEEEAAAAAAAAAAAAHHHHHH


Posted from TSR Mobile
0
reply
SnoochToTheBooch
Badges: 15
Rep:
?
#13
Report 4 years ago
#13
Something on the order of 10 trillion neutrinos are passing through your body every second
0
reply
pencil_case
Badges: 1
Rep:
?
#14
Report 4 years ago
#14
(Original post by Arithmeticae)
acceleration is the change in velocity (which is a vector), so if you change direction you can accelerate while still having a constant speed (speed is a scalar and only has magnitude)

no problem
That makes sense! Thanks
0
reply
Protoxylic
Badges: 14
Rep:
?
#15
Report 4 years ago
#15
(Original post by pencil_case)
That's interesting. How does that work?
Notice I said speed. If an object rotates in circular motion about a fixed point with it's speed constant, it's vector velocity constantly changes as it's direction of motion constantly changes. An acceleration is the rate of change of velocity with respect to time therefore there must be an acceleration. This acceleration is towards the centre of the circle, the object obeys Newton's first law in the sense that it 'tries' to keep moving in a straight line, but there is a net force on that object due to it's mass and acceleration, F=ma. Therefore it moves in a circle because the force is always perpendicular to it's vector velocity and directed towards the centre.
0
reply
safesploit
Badges: 0
Rep:
?
#16
Report 4 years ago
#16
Electrons have act as if they have no mass in carbon sheets (e.g. graphite)
http://physicsworld.com/cws/article/...-carbon-sheets
0
reply
pencil_case
Badges: 1
Rep:
?
#17
Report 4 years ago
#17
(Original post by Protoxylic)
Notice I said speed. If an object rotates in circular motion about a fixed point with it's speed constant, it's vector velocity constantly changes as it's direction of motion constantly changes. An acceleration is the rate of change of velocity with respect to time therefore there must be an acceleration. This acceleration is towards the centre of the circle, the object obeys Newton's first law in the sense that it 'tries' to keep moving in a straight line, but there is a net force on that object due to it's mass and acceleration, F=ma. Therefore it moves in a circle because the force is always perpendicular to it's vector velocity and directed towards the centre.
Thank you for taking the time to explain that to me very fascinating, thanks
0
reply
lerjj
Badges: 12
Rep:
?
#18
Report 4 years ago
#18
(Original post by safesploit)
Electrons have act as if they have no mass in carbon sheets (e.g. graphite)
http://physicsworld.com/cws/article/...-carbon-sheets
Why didn't you link this to when Sheldon said that in the Big Bang?
0
reply
lerjj
Badges: 12
Rep:
?
#19
Report 4 years ago
#19
1
reply
Dima-Blackburn
Badges: 18
Rep:
?
#20
Report 4 years ago
#20
Time travel into the future is possible.
1
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • Cranfield University
    Cranfield Forensic MSc Programme Open Day Postgraduate
    Thu, 25 Apr '19
  • University of the Arts London
    Open day: MA Footwear and MA Fashion Artefact Postgraduate
    Thu, 25 Apr '19
  • Cardiff Metropolitan University
    Undergraduate Open Day - Llandaff Campus Undergraduate
    Sat, 27 Apr '19

Have you registered to vote?

Yes! (219)
39.46%
No - but I will (38)
6.85%
No - I don't want to (37)
6.67%
No - I can't vote (<18, not in UK, etc) (261)
47.03%

Watched Threads

View All