1. A particle is moving with a constant velocity, v. One or two forces are applied to
the particle, as shown in the figures below. In which of the cases below, the forces
applied do not change the speed of the particle?
2. An object o
Electric Charges, DC Circuits, Magnetism
1. Two point charges of charge +Q are placed as shown below. At what point will a
negative charge experience a force toward the bottom of the page?
2. Four point charges are placed in the c
Work, Energy, Power, Momentum, Conservation Laws
1. An object moves 25m with a constant speed v, as shown in the figure below while
a force F = 20N is exerted on the object. What is the work done by the force F?
DC Circuits Formulas
Ohm's Law: V = IR
Power dissipated in a resistor: P = IV = V2/R = RI2
Resistance: R = l/A
Equivalent resistance of series resistors: Rs = R1 + R2 +.
Equivalent resistance of parallel resistors: 1/Rp = 1/R1 + 1/R2 +.
Pressure: P = F/A
Newton's Second Law: F = ma
Force of kinetic friction: Ff = N
Hooke's Law: F = -kx
Centripetal Force: Fc = mv2/R
Centripetal acceleration: ac = v2/R
Work, Energy, Conservation Laws Formulas
Work: W = F d = Fdcos()
Physics Formulas - Mechanics
The Kinematic Equations apply to one-dimmensional motion
with costant acceleration from point 1, situated d1 from a point of
reference to point 2, situated d2 from the same point of reference. v1
is the vel
1. A graduation hat is thrown vertically with a speed of 5m/s. How long does it take
the hat to reach maximum height?
a) t = .2s
b) t = .5s
c) t = .8s
d) t = 1s
e) t = 2s
2. A soccer ball is kicked with an horizontal speed v = 10m/s from the he