Momentum
Energy
Circular Motion
SHM and Waves
Electricity
100
The type of collision in which the two objects stick together is called a(n) _________________ collision.
Inelastic
100
If a 2000kg car is travelling at 15 m/s, what is the kinetic energy? Answer in kilojoules.
225 kJ
100
TRUE / FALSE
There must be a net inward force in order for an object to move in a circle.
TRUE
100
TRUE / FALSE
The mass of a mass-spring system will affect the period.
TRUE
100
Current is measured in __________________
Voltage is measured in __________________
Resistance is measured in _______________
amperes
volts
ohms
200
A 0.50 kg football is thrown with a velocity of 15 m/s. A stationary receiver catches the ball and brings it to rest in 0.020 s. What is the force (in N) exerted on the receiver?
375N
200
For a force to do work on an object, then the direction of the force must be _______________ or _________________ to the direction of displacement.
parallel, antiparallel
200
What is the force of gravity between two elephants, each with a mass of 3000kg, standing 1cm apart from ear to ear, their centers of mass are 2m apart? 
1.5 x 10-4N
200
A 2kg mass attached is suspended from a 50cm string and made to swing in SHM, as a pendulum.
Calculate the period.
1.41 seconds
T = 2 (pi) (L/g)0.5
200
According to Coulomb's Law, if the magnitude of one charge is doubled and the magnitude of the other charge is tripled, the resulting force between them will be increased by what factor?
6
300
A moving car collides with a wall and is brought to a a stop. By what factor is the force of the wall on the car multiplied by if the time interval is tripled?
1/3
300
If the velocity of a moving object is doubled, by what factor is the kinetic energy multiplied by?
4
KE = 1/2mv2
300
A mystery planet is discovered that is 20x further from the Sun as the Earth. How many years does it take for this Mystery Planet to complete one orbit?
201.5 years
T2 is proportional to r3
T is proportional to r1.5
300
The velocity of a wave is dependent on
the properties of the medium only.
300
When the distance between two charges is reduced by a factor of 10, what is the effect on the electric force between them?
Force is multiplied by 100 (inverse square law)
400
100N force pushes the cart 40o above the -x axis, as it is displaced to the right. What is the work done on the cart?
-383J
W = Fparallel * d
W = 100cos(40) * 5
400
A 5cm spring (k = 8 N/m) is compressed completely then released, propelling a 20g ball up a vertical, frictionless ramp. How high up the ramp will it go?
50cm (0.5m)
Espring = 1/2kx2 (0.5)(80)(0.05^2) = 0.1J
Espring = Eg = mgh
0.1 = (.02)(10)h400
How fast must a space station spin in order to maintain an artificial gravity of 10 m/s2 with a radius of 50m.
22.4 m/s
g = v^2/r
400
Sketch a closed tube standing wave in the 3rd harmonic. If the wave speed is 343 m/s and the pipe is 40cm, what is the wavelength and frequency?
Wavelength = 0.533m; f = 643 Hz
Fn = (nv)/(4L)
400
A 12V battery is connected to three resistors in series, R1 = 10; R2 = 15; R3 = 18. What is the voltage drop across each of the resistors?
I = 0.279
V1 = 2.79V2 = 4.19
V3 = 5.02