Energy
Laws
Waves
Waves cont.
misc
Circuits
waves 3
100
Energy that is stored is referred to as _____.
potential energy
100
Newton's first law (name and what it says= double points)
the law of inertia; an object in motion stays in motion, an object at rest stays at rest.
100
The bending of a wave caused by a change in its speed is called ______.
refraction
100
A more intense sound is _____
louder
100
A system of satellites that allow users to see an exact location is referred to as ______.
GPS (Global Positioning System)
100
By adding additional turns to a wire coil of an electromagnet, the strength of the magnetic field ______.
increases
100
A disturbance that transfers energy from place to place is called a ____.
wave
200
Which of the following examples has gravitational potential energy?
a. stretching a rubberband
b. an apple falling from a tree
c. using gas to fuel a motorcycle
d. a car waiting at a red light
b
200
An object’s mass multiplied by its acceleration equals its ______?
Which law is this? (double points if both)
Force, 2nd law
200
The measure of energy in a wave is called ______.
amplitude
200
Frosted glass and wax paper are_____
translucent
200
A wooden spoon is considered an insulator because ______.
heat/electricity does not flow through it easily/quickly
200
A ______ is used to open and close an electric circuit.
switch
200
The highest parts of a transverse wave are called ____.
crest
300
How would you write the equation for the total energy in a system?
Kinetic energy + potential energy
300
matter cannot be created or destroyed it can only be transformed
the law of conservation of matter
300
A material that transmits all light and reflects and absorbs none is______.
transparent
300
The bending of light rays as they enter a new medium is called _____
refraction
300
The SI for measuring temperature is ______.
Kelvin
300
Materials that do NOT allow the charges of an electric current to move freely through them are called ______.
insulators
300
Waves that move the particles of the medium parallel to the direction in which the waves are traveling are called ____.
compressional
400
If the rollercoaster has 4,000 Joules of potential energy at point A, and 2,500 Joules of potential energy at point B, how much kinetic energy does it have at point B?
1,500 Joules
400
Energy cannot be created or destroyed, it can only be transferred or transformed
Law of conservation of energy
400
A ______ is a statement that describes what scientists expect to happen every time under a particular set of conditions.
Scientific law
400
The three Primary colors of light are ________
Red, green, blue (no partial credit)
400
Sledding is an example of what kind of friction?
sliding
400
Which are parallel circuits?
Circuit B, D and E
400
The distance between two corresponding parts of a wave is the wave’s ____.
wavelength
500
What is the gravitational potential energy of an object that weighs 60 N and sits at 9 meters?
540 Joules
500
Finish and state the law:
For every action there is a ______ and ____ reactionn
equal and opposite; Newton's third law of motion
500
Which color has the longest wavelength?
Red
500
In a compressional wave moving along a spring, areas where the coils are farthest apart are called__________________.
rarefraction
500
When two forces are working together to move an object, the force is considered ______.
combined
500
If you turn off light bulb 2 on circuit D what happens to bulbs 1 & 3?
They still work
500
High frequency sounds have a ______ pitch.
high