Carbon has an atomic number of 6. How many neutrons does C-14 have? 8 14 20
Carbon has an atomic number of 6. How many protons does C-14 have? 8 14 20
Carbon has an atomic number of 6. What is the mass number of C-14? 8 14 20
Which layer is the least dense? Green Pale blue Dark blue Clear
When dry ice (solid CO2) sublimates into gas, this is an example of? Chemical property Chemical change Physical property Physical change
What state of matter has: indefinite shape, definite volume and loosely arranged particles that have motion? plasma gas liquid solid
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
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 a lightbulb has 50 Ohms of resistance is hooked up to a 10V battery what is the current in the wire? 1/5 Amps 5 Amps 50 Amps 500 Amps
If one bulb goes out and they all go out the circuit is Series Parallel Complex Broken
If the current has more than 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 Electromagnets Solenoids
The distance from crest to crest is called the __ of a wave. Height Amplitude Frequency Wavelength
The louder the sound the larger the ___ of the sound wave. Height Amplitude Frequency Wavelength
Due to ____, as you move towards a sound, the ____ will change. Doppler effect, pitch Echolocation, amplitude Doppler effect, amplitude Echolocation, pitch
This picture represents a Convex lens Convex mirror Concave lens Concave mirror
This picture represents a Convex lens Convex mirror Concave lens Concave mirror
This picture represents a Convex lens Convex mirror Concave lens Concave mirror
The top of a wave is called the Amplitude Crest Frequency Trough Wavelength
Frequency is measured in ____ and Volume is measured in ____ dB, Hz Hz, dB Hz, m M, dB
Electromagnetic waves __ a medium and mechanical wave __ a medium Need, Need Need, do NOT need Do NOT need, Need Do NOT need, Do NOT need
Find the work done by push on a box with 60 N over 6 m. 10 J 66 J 54 J 360 J
Where was the object traveling the fastest? Between 0 and 2 s Between 2 and 3 s Between 5 and 6 s Between 6 and 7 s
What does the slop of this line represent? A positive velocity A positive acceleration A negative velocity A negative acceleration