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