# Shared Flashcard Set

## Details

Study Guide
N/A
35
Physics
05/08/2012

Term
 What is the metric unit of length?
Definition
 Meter
Term
 What is the metric unit for mass?
Definition
 kilogram
Term
 What is the metric unit for weight?
Definition
 newton
Term
 What is the metric unit for time?
Definition
 second
Term
 What is the metric unit for volume?
Definition
 liter
Term
 What is the metric unit for temperature?
Definition
 degrees celsius
Term
 What is the equation for speed?
Definition
 speed = distance/time
Term
 Velocity can be defined as ______ and ______.
Definition
 Speed and direction
Term
 What is Newton's second law of motion in equation form?
Definition
 acceleration = force/mass
Term
 Mass is _______ proportional to weight.
Definition
 directly
Term
 If you leave the earth's surface, will your mass change?
Definition
 Never!!!!
Term
 The two definitions of mass are...
Definition
 1. the measure of an object's inertia2. the amount of matter in an object
Term
 When determining the net force operating on an object, always ______ forces acting in the same direction and ______ forces acting in opposite directions.
Definition
Term
 What is Newton's third law?
Definition
 "Whenever one object exerts a force on another object, the second object exerts an equal and opposite force on the first."
Term
 The two forces described in Newton's third law are called the _______ force and the ______ force.
Definition
 action; reaction
Term
 The action and reaction forces always occur _______.
Definition
 simultaneously
Term
 What's the equation for momentum when direction is being considered?
Definition
 momentum = mass X velocity
Term
 What are two differences between momentum and inertia?
Definition
 1. momentum applies only to moving objects, while inertia applies to both moving and static objects.2. momentum depends on mass and velocity, and inertia depends on mass only.
Term
 How much work has been done on an object that has moved but has ended up where it started?
Definition
 none
Term
 State the law of conservation of energy.
Definition
 "Energy cannot be created or destroyed; it may be transformed from one form to another, but the total amount of energy never changes."
Term
 What is the unit of energy, and what is one of these units equivalent to?
Definition
 Joule; one j = one newton x one meter
Term
 What is the wavelength of a wave?
Definition
 It's the distance between the crest of a wave to the next crest
Term
 What is the amplitude of a wave?
Definition
 the amplitude is the distance in a measure of units from the rest position
Term
 What are two different equations that could be used to find the speed of a wave?
Definition
 1. wave speed = wave length / period2. wave speed = wavelength x frequency
Term
 what is the range of human hearing?
Definition
 20Hz - 20,000Hz
Term
 What is the speed of sound in air?
Definition
 330 meters per second
Term
 What type of wave is a sound wave?
Definition
 They are longitudinal waves. The matter through which the sound wave travels compresses and decompresses in the direction of the wave's motion.
Term
 What is the difference between loudness and intensity?
Definition
 Loudness is a sensation and cannot be measured. Intensity depends on the amplitude of a wave and is measured with decibels.
Term
 Describe the behavior of like and unlike charges.
Definition
 Like charges repel and unlike charges attract
Term
 What is electric potential?
Definition
 the amount of electric potential energy per unit charged in a particle. aka voltage
Term
 What is electric potential energy?
Definition
 the energy a particle possesses due to the location in an electric field
Term
 What is the unit of electric potential?
Definition
 the volt
Term
 What is the unit of electric charge?
Definition
 coulomb
Term
 Write Ohm's Law in all three possible forms.
Definition
 1. current = voltage / resistance2. voltage = current x resistance3. resistance = voltage / current
Term
 Describe the differences between series and parallel circuits
Definition
 In a parallel circuit, the same voltage is applied to each device and each device completes the circuit independently of the others. In a series circuit, electric devices are connected in a row so that the same current flows through each voltage.
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