Charges
Electromagnets
Energy
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FINAL JEOPARDY - CHOOSE LAST!
100
The charge of a proton is __________
Positive
100
Three needed things to generate an electric current:
1. Movement
2. ______________
3. Coil of wire
Magnet
100
The sun is powered by __________________.
Fusion reactions
100
In a positive electric field, the lines point in what direction?
outward
200
What subatomic particle is able to move around?
Electrons
200
A generator converts mechanical energy into _______________________.
Electric energy
200
Even as energy converts from 1 form into another, the ________________________ energy always remains the same.
total
200
The charge of an electron is:
negative
300
Opposite charges _____________________.
attract
300
An electric current can be used to generate a ________________________ field.
Magnetic
300
What type of energy depends on position?
Potential energy
300
Heat transfer by electromagnetic waves is known as:
radiation
400
What direction will the electrons move, if I touch the electroscope with a negative rod?
Out of the rod and into the electroscope.
400
A changing magnetic field can be used to generate a(n) ________________________________________.
electric current
400
Increasing friction causes _____________________ energy to increase.
thermal
400
Which type of EMR (electromagnetic radiation) has the lowest energy?
radio waves
500
Explain why this person's hair is not sticking out.
The person is grounded, so electrons are able to get to the ground.
500
Name a way to increase the strength of an electromagnet
- stronger magnet
- more coils of wire
- faster movement
500
The law of _____________________________ states that energy cannot be created or destroyed.
conservation of energy
500
The name of the technique that we used to separate dyes using charge was __________________________.
Gel electrophoresis
500
FINAL JEOPARDY -
According to Newton's first law of motion, what type of force causes acceleration?
An unbalanced force