Magnets
Attract or Repel
Electromagnets
Density
Pivot and lever
100
The two poles of a magnet are the...
What is the north and south pole?
100
One north and one south pole will...
What is attract?
100
Gained the electric charge from the...
What is the battery?
100
Mass / Volume
What is the formula for density?
100
What is the fulcrum?
The pivot of a lever.
200
The pole that a compass will naturally find is..
What is the north pole?
200
Two north poles will...
What is repel?
200
More coils pick up more paperclips because
What is a little because the magnetic field stronger ?
200
The density of water
What is 1.00g/cm3?
200
What is the load?
The weight a lever is lifting or moving.
300
A magnet is only attrached to things that are...
What is iron, colbalt, and nickel? (or metal)
300
Magnetic field lines run from ....
North to South
300
Wood is a good electromagnetic core. True or False.
False
300
This has a density less than water but has the same molecular formula.
What is ice?
300
A ruler is exactly balanced what are the net moments on the ruler?
Zero
400
The Earth's north pole is its magnetic ______ pole
south
400
Magnets can have more than one pole true or false?
False they always have 2
400
How could we see the magnetic field of an electromagnet?
What is use iron filings?
400
An object has the Mass of 45.87 g and the Volume of 21.42 mL. Find the Density.
2.1414 g/mL
400
A ruler has a mass of 5kg 10 cm from the pivot on the left hand side and 10Kg 5cm from the pivot on the right hand side. Are they balanced?
Yes they are balanced.
500
The magnetic field is strongest at the..
What is the poles?
500
A piece of paper and a magnet will...
What is not be attracted or repel each other? (No reaction, Did I trick you? :)
500
If we connected more batteries it was suppose to show a...
What is a stronger magnetic field?
500
An object has the Density of 4.67 g/mL and Volume of 3.91 mL. What is the Mass?
18.2597 g.
500
A man uses a spanner to loosen a nut. He can exert a force of 200N. The first spanner he uses doesn't work. The second spanner he uses does work. Presuming he used the same force of 200N each time, Which was the longer? The fist or the second ruler?
The Second
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