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Physics Prt 5: Certified
Terms in this set (27)
What is another word for attraction between objects?
1) Opposite charges, + and -
What is something that is a constant in every frame of reference?
Speed of light
Can the speed of light ever change?
Yes, when it goes from space to anything else it slows down, can be slower than itself but never faster.
Who developed theories of relativity?
Pressure, what comes to mind? (from matching)
Force per area
It travels at c in space
1) Speed of light
4) Gravity waves
You have a charged atom
Ion, positive ion and negative ion.
How much was a neutron charged at a bar? (joke)
The weight of water displaced is the definition of what?
An object has a buoyant force that equals its weight
It doesn't rise or sink, it floats.
This person discovered the laws of buoyancy:
This person discovered the laws of pressure:
This was a scientist we did not discuss, but he was in the assigned reading he dealt with fluid pressure, pressure changes when objects or temperature moves:
Unit for potential difference or electric potential energy
What is the relationship between distance and force in electrostatic charges?
What's a henway? (joke)
Where does bad light go? (joke)
What did the ion say to the atom when he got an electron knocked off him?
Hey you're positive bro
What is color subtraction?
When a pigment takes away frequencies of light, like a paint or t-shirt
What is color addition?
When frequencies of light join together and go into our eyes to create the colors we see.
Which makes light? Television or photo?
→ Tv - illuminated
→ Photo - luminous
What is the difference between a conductor and an insulator?
1) A conductor allows for the movement of charges, an insulator does not
2) Metal is a conductor, it has atoms that are free to move around
1) Transparent - light can go through
2) Translucent - light can con through but it is distorted, not seeing all frequencies of light
3) Opaque - light can't go through
Why do you see a bat swing before you hear the crack? Why does a runner see the starter pull the trigger before they hear the bang?
Sound is 1 million times slower than light.
What type of wave is longitudinal?
Sound (everything else is transverse)
How come you don't want to sit in a tub with electrical appliances?
Water can be conductive with soap in it, tub is metal, and skin is a conductor
What is the Doppler effect?
When the frequency changes when things are coming towards you or going away
→ Towards - waves scrunch, higher pitch
→ Away - wave elongate, lower pitch
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