Gravity & Friction
A push or a pull that causes an object to move, stop, or change direction
What is FORCE?
The place where the pull of the magnet will be the strongest
What are the POLES?
More specifically, the NORTH and SOUTH POLES!
Stored energy
What is POTENTIAL energy?
Work produced by an electrical current
What is ELECTRICAL ENERGY?
A material that does not allow energy to flow through it easily
What is an INSULATOR?
The force that pulls objects towards Earth’s center
What is GRAVITY?
When unlike (opposite) poles are next to each other, they will...
What is ATTRACT, or come together?
Energy in motion
What is KINETIC energy?
A complete pathway along which electricity flows
What is a CLOSED CIRCUIT?
A material that allows energy to flow through it easily
What is a CONDUCTOR?
The resistance of motion when objects rub against each other
What is FRICTION?
When like (same) poles are near each other, they will...
What is REPEL, or push away, from each other
As a roller coaster climbs the first hill, it's storing energy due to gravity
What is POTENTIAL energy?
The flow of electrons through a wire
What is an ELECTRIC CURRENT?
Nearly all metals
What are GOOD CONDUCTORS?
Tre or False:
Kinetic energy is stored energy while potential energy is the energy of motion
What is FALSE?
POTENTIAL energy is stored energy while KINETIC energy is the energy of motion
Your friend asks if you'd like to see a trick. He places a paperclip onto a piece of paper and magically moves the paperclip without touching it. You notice he's moving something under the paper. What force is causing the paperclip to move on top of the paper?
What is MAGNETISM?
A roller coaster zooms down the hill and through all sorts of loops and turns.
What is KINETIC energy?
An incomplete pathway where no electricity can flows
What is an OPEN CIRCUIT?
Most non-metals such as ceramic, rubber, and plastics
What are GOOD INSULATORS?
You are riding your bike and decide to take a shortcut home. The shortcut is down a dirt path. You notice you have to pedal harder to keep the same speed you were going while on the street. What force changed that caused you to increase your effort to pedal down the dirt path?
What is FRICTION?
In an experiment, you stack 5 magnets and try to collect as many paperclips as possible. Would the stack of magnets increase or decrease the magnetic force? How would this affect the amount of paperclips you were able to collect?
The magnetic force would INCREASE and would allow you to pick up MORE paperclips.
How is a wind-up toy an example of mechanical energy?
When you wind up the toy, potential energy is stored in the toy's spring. After releasing the winder, the spring tries to unfold, converting the potential energy into kinetic energy, which moves the gears making the toy move.
A battery, pathway or wire, a bulb, and a switch
What are the PARTS OF AN ELECTRICAL CIRCUIT?
Wire A: Completely insulated with blue rubber from end to end
Wire B: Insulated with red rubber but the ends are trimmed to expose the copper
Which would be more successful when creating a complete circuit?
What is WIRE B?
But, why?!?