8th Grade Review Crossword

Speed that does not change
Acceleration is the rate of change of _____________
Velocity is speed and __________________
An example of instantaneous speed is
sound travels as a ____________________ wave
This type of wave does not need a medium to travel
Light bends when it enters a new medium because it changes __________
A pencil seems to bend as it enters the water, this is called ____________
Sound travels fastest through which medium?
What is the height of a transverse wave called?
The positive sub atomic particle found in the nucleus of an atom
In a series circuit, what happens to the current when you add more resistors (bulbs)
In a chemical cell, the electrodes must be ______________
The AVERAGE kinetic energy of molecules in a substance
The TOTAL kinetic energy of molecules in a substance
Molecules move faster and ____________ when thermal energy is added.
If you decrease the wavelength the frequency will
When animals use sound waves to locate objects
The force that pushes electrons around a circuit
An electrical component that controls the direction of the current