Kinematics
A car travels 20 m/s for 5 s. What equation from the reference table would you use to find distance traveled?
d = vt
In the equation
(F = ma), what does the variable (a) represent?
In the equation for kinetic energy, which variable is squared?
Velocity
What wave relationship equation connects speed, frequency, and wavelength?
v = lambda * f
What is the variable and unit for resistance?
R, ohms
If velocity doubles while time stays the same, what happens to displacement in (d=vt)?
It doubles
A 10 kg object accelerates at 2 m/s². What is the force?
20 N
If speed doubles, what happens to kinetic energy?
It quadruples
What type of wave requires a medium to travel?
Mechanical wave
What is the name of the equation that relates voltage, current, and resistance?
Ohm's Law
What equation relates momentum, mass, and velocity?
p = mv
A book is resting on a flat table. What direction does the normal force point?
Up
Which equation would you use to calculate the energy of a 5 kg object at 2m?
PE = mgh
What equation relates frequency and period?
f = 1 / T
A circuit has a battery providing 12 volts and a light bulb with a resistance of 3 ohms. What is the current flowing through the light bulb?
4 A
A 2 kg object moves at 3 m/s. What is its momentum?
6 kg·m/s
A book is resting on an incline. What quantities will need to be measured to determine the force acting along the incline?
Angle of inclination, mass of book.
What is the unit of power?
Watt
Which electromagnetic wave has the longest wavelength?
Radio waves
If voltage increases and resistance stays constant, what happens to current according to Ohm’s Law?
Which principle explains why the momentum of objects before and after a collision must add up to the same amount?
Law of Conservation of Momentum
Three equal forces are acting on an object. If the net force is zero and no two forces are acting in the same direction, what angles must the forces be acting at relative to each other?
0, 150, 240 degrees ( sin 30 = 0.5 , two of the three forces must balance in y while adding up to the third force in x)
A 100 W light bulb is left on for 3 hours. This is the equation that would allow us to determine the amount of energy converted from electrical to EM and thermal energy.
P = E/t
h (Plank's constant)
A series circuit has a 6 volt battery connected to three 100 ohm resistors. What is the voltage drop across each of the resistors?
2 V (Since the resistors are all the same, they split the 6V evenly 3 ways. 6V/3 = 2 V)