Gravity
Magnetism
Electric Forces
Atoms and Ions
Electromagnets, Motors, and Generators
100
Make a claim for gravity acting between objects in the solar system due to mass.
The Earth revolves around the Sun because the Sun has more Mass.
All the planets revolve around the Sun because the Sun has the most mass.
The moon revolves around the Earth because the Earth has more mass.
Moons revolve around planets because planets have more mass.
100
Only _____ objects can be affected by magnets. For example, ______ can be affected by magnets, but _____ cannot.
Metal
- Aluminum cans, screws, nails, staples, compasses
- Candy, clothes, erasers, pencil lead,
100
Objects can become ___ when they gain or lose _______.
charged
electrons
100
All matter is made of
Atoms
100
Electromagnets create .
Motors create .
Motors create .
Electric Generators create .
magnetism, magnets or magnetic fields
motion, movement, mechanical energy, or kinetic energy.
electricity
200
What do ALL objects with gravitational pull have in common?
They all have a mass.
200
These two magnets will ______ because _________.
Repel
Their poles are the same.
200
The hair is _______ to the balloon because ______.
Attracted
The hair is positive while the balloon is negative
200
Only move from one atom to another atom.
Electrons
200
What increases the strength of magnetism in an electromagnet?
More copper wire
More iron core
More voltage (battery)
300
If we travel to Mars, our ____ will stay the same, but our ____ will change.
Mass
Weight
300
A magnet works because of the alignment of
Domains
300
The metal sphere aka Van de Graaf generator has a high electric charge. Why is the person's strands of hair REPELLING each other?
The hair is positively charged. Likes repel.
300
Name the particles in the picture and describe their charge.
Orange - Protons - Positive
Blue - Electrons - Negative
Green - Neutrons - No Charge
300
What causes a motor to turn faster?
More/thicker wire
More voltage/battery
More magnets
400
Two factors that affect Gravity's pull are ___ and ____.
Gravity increases when objects have ______, but decreases when objects have ____.
Mass and Distance
more mass or are closer
less mass or further away
400
Two North Pole magnet ends will while a North Pole and a South Pole magnet will
Repel
Attract
400
Compare and contrast friction and induction.
Similar - both charge atoms, both move or gain electrons, both cause static electricity
Different - friction involves rubbing two objects together. Induction involves no touch.
400
Atoms prefer to be ______, which means they have an equal number of ______ and ______.
When they gain or lose an ________, they become a charged particle called an ion.
Neutral
Protons and Electrons
Electrons
400
What makes a generator create more electricity?
More motion/movement/mechanical energy or kinetic energy.
500
Jupiter has more gravity than Earth because ____.
Jupiter has more gravity than Earth so our weight would be
It has a larger mass.
greater on Jupiter.
500
One similarity between magnetism and gravity is ______.
One difference between magnetism and gravity is _____.
Similarities - Both non-contact, both act across a distance, both stronger when objects are close together, both create a field
Differences - Magnetism only works on metal objects but gravity works on all objects; Magnetism can attract or repel but gravity can only attract; Birds can see the magnetic field but cannot see the gravitational field.
500
Compare and contrast insulators and conductors.
Similarities - deal with charged atoms. Involve electricity. Involve the movement of electrons.
Differences - conductors have evenly spread out electrons. They move easily. Metal and water. Insulators have unevenly spread out electrons. They do not move easily. Wood, plastic, rubber.
500
This ion has a ________ charge because _______.
Negative
It has more electrons than protons
500
How can you create an electric current with JUST a wire and a magnet?
Move the magnet through the wire