Gravitational Fields
Gravitational attraction between two objects depends on what two factors?
Mass between the two objects and the distance between the objects
Two charged balloons repel each other. One of them is negative. What charge does the other balloon have?
Negative charge
In what direction does a magnet's magnetic field act?
It goes from the North pole to the South pole.
When you jump, what direction does gravity face? Is it speeding you up or slowing you down?
Downwards; Slowing you down
They attract.
Where is a magnet's field the strongest?
At the ends of the magnet (where the poles are)
What happens to gravitational attraction if your mass decreases?
The gravitational attraction decreases
If you double the charge, what happens to the electric force?
It doubles.
If two magnets face each other with the same poles, what happens?
The magnets would repel.
What celestial body causes oceanic tides?
The Moon
How do we need to change the distance between charges if we want to increase the electric force?
We need to decrease the distance.
What kind of force is gravitational, electric, and magnetic force?
A non-contact force
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If I rub a balloon on my hair, my hair gives electrons to the balloon. How does the charge of the balloon change, and how does the charge of my hair change?
The charge of the balloon becomes more negatively charged; The charge of my hair becomes more positively charged.
What causes Earth to have a magnetic field?
The Earth's core