Circular/Orbital Motion
The source of centripetal force that holds a car from flying off a circular track.
What is (static) friction?
The direction of a magnetic field produced by a straight wire current coming out of the page.
What is counter-clockwise?
The rate at which electrical energy is used.
What is power?
This type of particle can move easily in conductors but not in insulators.
What are electrons?
The product of force and the time interval over which it acts.
What is impulse?
The speed at which an object is moving at any given moment in a circle.
What is tangential velocity?
These are the two regions of a bar magnet where magnetic effects are strongest.
What are the north and south poles of a bar magnet?
The opposite of the way electrons flow in a circuit.
What is the (conventional) current?
This occurs when charges within an object rearrange due to a nearby charge.
What is polarization?
kg*m/s
What are the units for momentum?
DAILY DOUBLE: The fictitious force that pushes you outward as you move in a circle.
What is centrifugal force?
Something that is produced by the movement of electric charges.
What is a magnetic field?
A type of circuit where adding more resistors decreases overall resistance.
What is a parallel circuit?
Unlike electric force, this quantity describes the influence a charge creates in space.
What is an electric field?
This variable must change if momentum changes but mass stays constant.
What is velocity?
mv2/r
What is the formula for centripetal force?
This occurs when a changing magnetic field or movement within a magnetic field produces an electric current.
What is electromagnetic induction?
This value is the same in all branches of a parallel circuit.
What is voltage (drop)?
The direction of the electric field is defined as the direction this object would move within the field.
What is a positive test charge?
A type of collision where the two objects stick together and keep moving.
What is a perfectly inelastic collision?
The law of astronomy that tells us that planets move faster closer to the sun and slower further away.
What is Kepler's Second Law?
If a charge moves parallel to a magnetic field, the force is this.
What is zero?
This property of a material determines how strongly it impedes current flow.
What is resistance?
Potential energy increases when like charges are moved this way.
What is closer together?
The function used to find the angle of a vector after solving for x and y components.
What is inverse tangent?