Gravity
Invisible force by which mass attracts mass, pulling objects toward each other.
Gravity
Two of the same poles are facing each other. What will the magnets do?
Repel
The movement of electrons
Electricity
When an electric field and a magnetic field interact
Electromagnetic Induction
What happens to voltage when you increase the number of charges?
Voltage increases
The two factors that increase gravitational potential energy.
Mass and Distance
Electromagnetic induction involves which two fields?
Magnetic and electric
T or F: an electric field can induce a magnetic field?
True
A device that can store electric charges and release it suddenly.
Capacitor
What would the line graph look like for the relationship between mass and gravity?
Positive linear
Between a cheeseburger and a french fry, which one has a stronger gravitational pole?
Cheeseburger
When magnetic domains stay aligned for a short amount of time.
Temporary Magnet
The buildup of charge on an object that can be discharged all at one time.
Static Electricity
A meter that detects an electric current
Ammeter
Which Apollo mission had oxygen tanks explode?
Apollo 13
There are two roller coasters (of the same mass) stuck at the top of their tracks. Rollercoaster #1 is 50 feet up and roller coaster #2 is 45 feet up. Which roller coaster has the most gravitational potential energy?
Roller Coaster #1
What is one difference between magnetic fields and gravitational fields?
- Gravity only attracts, magnetism attracts and repels
OR
- Gravity is affected by mass, magnetism is not
Small particles in atoms
Electric charges
A train that levitates using electromagnets causing no friction on the tracks and high speeds.
Maglev Train
What is electricity measured in?
Volts
What would the graph line be for the relationship between distance and gravity?
Negative non-linear
Magnetic, electric, gravitational, and electromagnetic forces are called what?
Forces-at-a-distance
A balloon rubs against a sweater. The sweater transfers electrons over to the balloon. What are the charges of the balloon and sweater?
Balloon is negative.
Sweater is positive.
What is the equation for finding coil density?
# of coil turns/ length of wire
What is the 4th step of the EDP?
Build