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Forces
Fields
Fields 2
Vocabulary
1
If you power a string of lights with a 9-volt battery and your sister uses an extension cord and powers her lights from an electrical outlet on the deck, who will have the brighter lights?
Who is your sister?
1
This force causes objects to fall towards the center of the Earth at an acceleration of 9.8m/s2.
What is the gravitational force?
1
A field caused by a magnet or current carrying wire.
What is a magnetic field?
1
What is a gravitational field?
1
A push or a pull
What is a force?
2
The law that states energy is never created or destroyed, only changed from one form to another.
What is the Law of Conservation of Energy?
2
When a student rubs a neutral balloon with a cloth on a cool, dry day. The balloon gains electrons which means that the balloon has which charge?
What is negative charge?
2
A field around any charged object.
What is an electric field?
2
Opposite charges and poles do this.
What is attract?
2
One end of a magnet, identified as either north or south
What is a pole?
3
This happens to gravitational force when objects move closer together.
What is the force increases?
3
2 ways to make an electromagnet stronger.
What is increase battery strength or wrap the wire around the coil more times?
3
A field around any object possessing mass.
What is gravitational field?
3
Would you weigh more or less on Jupiter?
What is more?
3
the physical field that surrounds electrically charged particles
What is an electric field?
4
The reason that a compass always points North.
What is the Earth's magnetic field?
4
An object that allows an electrical charge to flow through it easily
What is a conductor?
4
During a lab investigation students touched an uncharged piece of metal with a positively charged glass rod.
Which method was the electric charge transferred by?
What is conduction?
4
What is a magnetic field around a bar magnet?
4
A magnet that is created when a wire is coiled and an electric current flows through it
What is an electromagnet?
5
Like charges and poles do this.
What is repel?
5
The effect that increasing distance between objects has on a force.
What is decreases the strength of the force?
5
How is mass of an object different from the weight of an object?
Weight includes gravitational force
5
What is a magnetic field around a current carrying wire?
5
the force of attraction that exists between any two or more masses
What is gravity?