A bird flies 120 meters in 6 seconds. What is the bird's average velocity?
20 meters per second
100
Finish Newton's Law: An object at rest stays at rest unless it is acted on by an unbalanced ___________.
Force
100
A diver jumps off of a diving board. What happens to the diver's potential energy and the kinetic energy?
Potential Energy decreases and Kinetic Energy increases
100
What is the charge of an electron?
-1.6 x 10^19 C or -1e
100
What is the speed of an electromagnetic wave traveling through air?
3 x 10^8 meters per second
200
What is the acceleration due to gravity of an object on the surface of Earth?
9.81 meters per second squared
200
What property of an object is equivalent to its inertia?
Mass
200
What type of energy is the sum of all kinetic energy, potential energy, and dissipated energy in a system?
Total Mechanical Energy
200
What happens to the resistance of a length of wire as its cross-sectional area decreases?
Resistance increases
200
What happens in terms of electrons and photons when light is emitted from an excited atom.
The electron falls to a lower energy orbital and releases a photon.
300
What is the definition of acceleration?
Change in velocity over Time
300
What is the standard international unit for weight?
Newton
300
What is the kinetic energy of a 4 kg object traveling at 4 meters per second?
32 Joules
300
What is the voltage of a battery that can generate 0.5 amps of current through an 18 ohm resistor?
9 Volts
300
When light refracts through a new medium, what property of the light wave changes?
Speed
400
A baseball is thrown straight up into the air at a 90 degree angle with an initial velocity of 25 meters per second. What is the baseball's velocity when it reaches its highest point?
0 meters per second
400
What impulse is required to stop a 400 kg bike traveling at 10 meters per second?
4,000 kgm/s
400
What is the SI unit of work?
Joules
400
A circuit consists of a 20. ohm, a 40. ohm, and an 80. ohm resistor all wired in series. What is the total equivalent resistance of the circuit?
140 ohms
400
Name or describe the experiment in which Rutherford and other physicists discovered that atoms have a massive, positively charged nucleus.
The gold foil experiment
500
A baseball is thrown straight up into the air at a 90 degree angle with an initial velocity of 25 meters per second. What is the baseball's speed the moment before it hits the ground again?
25 meters per second
500
A child pulls a wooden cart across a flat surface of ice with a horizontal force of 15 Newtons. The cart moves at a constant velocity. What is the force of friction acting on the cart?
15 Newtons
500
An elevator acts against gravity to lift a up 20 kg mass by 2 meters. This takes 4 seconds. How much power does the elevator have?
100 Watts or J/s
500
A circuit consists of a 20. ohm, a 40. ohm, and an 80. ohm resistor all wired in parallel. What is the total equivalent resistance of the circuit?
11 ohms
500
What are the four forces according to Nick's presentation on the Higg's Boson particle.