Carbon has an atomic number of 6. How many neutrons does C-14 have? 8 14 20

Which layer is the least dense? Dark blue Clear Green Pale blue

When dry ice (solid CO2) sublimates into gas, this is an example of? Physical property Physical change Chemical property Chemical change

What state of matter has: indefinite shape, definite volume and loosely arranged particles that have motion? solid liquid gas plasma

Ne is a noble gas and is found in group 18 Ne is a noble gas and is found in group 18. How many valence electrons does it have? 2 8 9 18

Atoms with different numbers of electrons than protons are called? isotopes ions neutral radioactive

Atoms of the same element with different numbers of neutrons are called? isotopes ions neutral radioactive

How many atoms are in 2C6H12O6 24 48

Carbon has an atomic number of 6. How many protons does C-14 have? 8 14 20

Milk is an example of a(n) solution suspension colloid compound

The center of an atom is The electron cloud The protons The neutrons The nucleus

Bases do all of the following EXCEPT Turn red litmus blue Taste sour Have a pH greater than 7 Are slippery

Which temperature is lower? 0 F 0 K -273 F

Which depends on the number of particles present? Temperature Thermal energy Chemical properties Kinetic energy

½ mv2 is the formula for? Potential energy Thermal energy Kinetic energy Mechanical energy

A skier has the most potential energy? At the top of the hill In the middle of the hill At the bottom of the hill It depends on the weather

What does friction do in terms of energy? Friction converts potential energy to thermal energy Friction converts kinetic energy to thermal energy Friction converts thermal energy into potential energy Friction destroys energy and creates mass

Magnetic fields are created by an atom’s nucleus protons neutrons electrons

The charges on the parts of an atom are Protons +, neutrons -, electrons no charge Protons no charge, neutrons -, electrons + Protons +, neutrons no charge, electrons – Protons -, neutrons +, electrons no charge

The smaller the resistance the Smaller the voltage Larger the voltage Smaller the current Larger the current

How much energy does a 100 W light bulb use in 4 hours 400 Wh 25 Wh

If one bulb goes out and the rest stay on the circuit is Series Parallel Complex Broken

If the current only has ONE path to travel through, what type of circuit is it? Series Parallel Complex Broken

By moving a coil of wire past a magnet you can create? Magnetic Field Electric current Electomagnets Solenoids

The distance from crest to crest is called the __ of a wave. Height Amplitude Frequency Wavelength