What is the difference between a series circuit and a parallel circuit?
Series has only one path for electricity to flow. Resistors are arranged in a chain.
Parallel has more than one path for electricity to flow. There are different branches or parts where resistors are found.
200
Draw an atom model for Nitrogen.
Drawn out.
200
What is the difference between a compound and a mixture?
Compound is uniform throughout and cannot be separated.
Mixture has different parts and can be easily separated.
300
Convert 128.9 mL to hL.
0.001289 hectoliters
300
A car goes from a speed of 0.0 m/s to a speed of 31.6 m/s in 12 seconds. What is the acceleration of the car?
a=final speed-initial speed/time
a= 2.6 m/s2
300
What is an electromagnet?
An electromagnet is when something with magnetic properties becomes magnetic because a current runs through it.
300
What is the difference between covalent and ionic bonds?
Covalent bonds share electrons.
Ionic bonds give or take electrons.
300
What is the chemical formula for Be+2 and N-3.
Be3N2
400
Which is the larger amount?
3.7 kg OR 27,089 cg
3.7 kg
400
If a students runs the 800 meter race in 2.5 minutes, what is his average speed in m/s?
v=d/t
Convert 2.5 minutes to 150 seconds.
Speed= 5.3 m/s
400
What is the difference between a temporary and permanent magnet?
Temporary magnet is not always magnetic. Needs to be in the presence of a permanent magnet.
Permanent magnet is always magnetic.
400
Name an element in the Noble Gases group.
Far right column.
400
Balance the following equation:
___ CO2+ ___ H2O---> ___ C6H12O6+ ___ O2
6 CO2+ 6 H2O---> 1 C6H12O6+ 6 O2
500
How many steps are there in the scientific method?
Six
500
If a car has a mass of 2,000 kg and a speed of 30 m/s, what is its momentum?
p=mv
p=60,000 kg*m/s
500
Explain what made your speaker work.
Answers will vary.
500
Why would Potassium and Chlorine easily bond to make Potassium Chloride?
Potassium has a +1 ionic charge and Chlorine has a -1 ionic charge. They would easily balance out and bond together.
500
Draw a lewis dot structure for Potassium and Silicon.