Final Exam Review Spring 2014

Speed is the rate of change in

To describe velocity you need to know

When you graph the motion of an object, you put ____ on the horizontal axis and ____ on the
vertical axis.

Acceleration involves a change in ____.

On a speed-time graph, a horizontal line shows the change in speed is ____.

Inertia

If you exert a force on an object in motion you will change its ____.

The distance traveled divided by the time taken to travel the distance is ____.

Momentum is a measure of ____.

Normally, atoms are electrically neutral because there are ____.

The buildup of electric charges on an object is called

A material through which electrons do NOT readily flow

Two objects will attract one another when they have ____.

An electric field gets stronger as you ____.

The separation of positive and negative charges due to electric field is called a(n) ____.

The steady flow of electrons through a conductor is ____.

Copper is used in household wiring because ____.

When the resistance in an electrical circuit increases, the current flowing in the circuit ____.

Resistance is measured in a unit called the ____.

A path created for a current that allows only one route for the current is called a ____.

The rate at which an electrical device converts energy from one form to another is called ____.

What is the equation for the correct relationship among power, current and voltage?

a device designed to open an overloaded circuit and prevent overheating

Electric companies usually sell electrical energy in units of ____.

A circuit that has two or more separate paths for electrons to follow is a(n)____.

The location of the strongest magnetic field is the ____.

The region around a magnet where the magnetic forces act is the ____.

The aurora borealis is seen mainly ____.

Particles in the solar wind react with ____ in the atmosphere to produce the aurora.

The function of an electric motor is to change ____.

A current carrying wire wrapped around an iron ore is called a(n) ____.

Changing the current changes the ____ of an electromagnet.

The function of a generator is to change ____.

A device that increases or decreases voltage in a power line is a ____.

Current that does not reverse direction is called ____.

A current that reverses direction in a regular pattern is called a(n) ____.

In a step-up transformer, the number of turns of wire is greater in the ____ coil than in the ____ coil,
and the ____ voltage exceeds the ____ voltage.

The amplitude of a compressional wave depends on the _____.

Which of the following correctly states the equation for calculating wave speed?

The SI unit for frequency is the _____.

Sound waves produced by a vibrating object are _____.

Loudness is the human perception of sound wave _____.

The part of the ear that amplifies sound vibrations is the _____.

The process of detecting objects by bouncing sounds off them is called _____.

If the distance between the crest and trough of a wave is 1.2 m, the wave’s amplitude is _____.

Sound intensity is measured in _____.

The brightness of a light is determined by _____.

The shortest radio waves are called _____.

The electromagnetic waves with the highest energy are _____.

The “normal” is a line that makes an angle of _____.

If the frequency of a sound wave is 7.0 Hz, and the sound wave travels through the air at a speed of
350 m/s, what is the wavelength?

Light travels fastest in _____.

The intensity of light waves is a measure of the _____.

As the frequency of a sound gets higher, so does its _____.