Dynamics Flashcards
1
Q
Inelastic collision
A
Momentum-conserved
kinetic energy-reduced
Total energy-conserved
1
Q
Elastic collision
A
Momentum-conserved
kinetic energy-conserved
Total energy-conserved
2
Q
Explosions
A
Momentum-conserved
kinetic energy-increased
Total energy-conserved
3
Q
as the distance doubles the…
A
force of attraction is quartered
4
Q
a frame of reference is
A
where newton’s laws hold true
5
Q
Einstein’s first postulate
A
all laws of physics are the same in all inertial frames of reference
6
Q
evidence of special relativity
A
Atomic clocks on spaceships
gps satellites
7
Q
evidence of the big bang
A
cosmic microwave background radiation
8
Q
as distance doubles(irradiance)
A
irradiance quarters
9
Q
what is irradiance
A
The power per unit area (incident on
a surface)
