Mechanics
An unbalanced force must produce...
Acceleration
What are the units for power?
J/s or W
Which way do arrows point on a magnet diagram?
N-->S
When light slows down, which way does it bend?
Towards the normal
A photon is...
What are vector quantities (types)?
Velocity, displacement, momentum, force, acceleration
What is mechanical energy the sum of?
PE+KE
All resistors in parallel have equal...
Voltage
When a wave enters a new medium what happens to frequency?
It stays the same
What is particle behavior proven by?
The photoelectron effect
The slope of a Velocity v Time graph is...
acceleration
As height increases, what happens to Gravitational potential energy?
PE increases
True or False: all charges result from the movement of protons
False
For light waves, what is the energy proportionate to?
Frequency
What do electromagnetic waves originate from?
Accelerated charged particles
Where do arrows point in a centripetal diagram?
Force/acceleration= towards center
Velocity= tangent
What changes when velocity changes?
KE
How do ionized gasses conduct electric current?
With positive/negative ions or electrons
In sound waves, what determines energy?
Amplitude
Increasing light frequency does what to the KE?
Increases
What is the equilibrant force?
Same magnitude opposite direction
When a mass falls freely, what happens to mechanical energy?
Zip, Nada, Zilch, Absolutely Nothing, ya ding dong
Insulators contain...
No free electrons
How many frequencies are in monochromatic light?
1
How are electrons held near the nucleus?
Electrostatic force