States of Matter
A solid to a liquid
Melting
The highest point of a wave is called the _?
crest
Protons have what charge?
Positive
Potential energy is _ energy?
Stored
What is a force?
A push or pull
Liquid to a gas
condensation
The distance of displacement from the equilibrium is called the _?
Amplitude
Potassium has the atomic number 19 how many electrons does it have?
19
Kinetic energy is _ energy
active
What is the Unit for Force?
Newtons (N)
Liquid to a solid
Freezing
The units for Speed, Wavelength and frequency are_?
m/s, Meters (m), Hertz (Hz)
Valence electrons are located where?
Outermost shell
The equation for Potential energy is_?
PE= mgh
Balanced forces have _?
Unbalanced forces _?
No movement/acceleration
Movement/acceleration
A gas to a solid
Deposition
Waves in a LONGITUDINAL wave go _ to _
Compression to compression
Potassium has an Atomic mass of 39 and Atomic number of 19. How many Neutrons does it have?
20
the equation for Kinetic energy is_?
KE 1/2mv2
A man pushes a cart with 200 N while his wife pulls with a force of 120. What is the net force?
320 N
A solid to a gas
A wave has a frequency of 42 Hz traveling at a speed of 350 m/s. What is the wavelength
8.33 m
The rows on the periodic table are called _?
The Columns are called_?
Periods , Groups
What is the unit for energy?
Joules (J)
In a game of tug of war the blue team pulls to the right with a force of 550 N. The Red team pulls to the left with a force of 375 N. What is the net for and which team will win?
175 N, Blue team