Mechanics
Vector
As height increases, gravitational potential energy...
increases
Insulators contain no free...
electrons
Sound waves are both longitudinal and mechanical. True or false?
True
A photon is...
A) An antiproton
B) A wave of light
C) A particle of light
D) A lepton
C) A particle of light
What is the slope of a distance-time graph?
Velocity
Joules/sec
Electric fields all go from positive to negative, or negative to positive?
Positive to negative
In wave problems, all angles are measured to the...
normal
What force holds the nucleus together?
The strong nuclear force
Is momentum conserved in a collision system?
Yes
pe + ke is equal to what?
Mechanical energy
What wires make the best conductors?
Short, fat, and cold
Monochromatic light has how many frequencies?
One
Protons and neutrons are made of how many quarks?
3
What does a constant velocity or zero velocity mean in terms of net force and acceleration?
Both are zero
Does kinetic energy change if velocity changes?
Yes
Electrons and protons have equal amounts of charge. What is this charge?
1/6 * 10^-19 C
In a vacuum, the speed of light for all electromagnetic waves is...
3.0 * 10^8 m/s
What is the ground state?
The lowest energy state of an atom
At 0 degrees, two vectors have a resultant equal to their...
At 180 degrees, two vectors have a resultant equal to their...
sum
difference
An eV is equal to how many joules?
1.6 * 10^-19 J
Adding a resistor in parallel does what to the total resistance of the circuit?
Decreases
What kinds of waves are light waves? What kinds of waves are sound waves?
Light waves are transverse and sound waves are mechanical/longitudinal
Energy over frequency graph is equal to what?
h. (Plank's constant)