Evidence of Interactions
Magnetic Interaction
Electric-Charge Interaction
Electric-Circuit Interaction
100
An interaction occurs when you hold your hands by the fire. What is the evidence that an interactions had occurred?
A change in temperature - your hands warm up
100
True of false: A magnet and another magnet always attract each other?
False. Magnets can either attract or repel each other.
100
What happens when an electrically charged object is brought near an uncharged object?
The uncharged object moves toward the charged object.
100
What is an electrical conductor?
A material that allows an electrical current to exist in it.
200
When you kick a soccer ball, your foot interacts with the ball. What is the evidence?
A change in motion (shape of ball, shape of foot)
200
True or false: A magnet and a magnetic material can either attract or repel each other.
False. Magnets can only attract magnetic materials.
200
What happens when 2 objects with the same charge are brought near each other?
They repel each other.
200
Explain a circuit that would light a light bulb.
A cell connected in a circular shape with conducting wires to a light bulb.
300
Give an example of a magnetic material.
Iron, cobalt, nickel
300
What happens when 2 objects with different charges are brought near each other?
They attract each other.
400
True or False: An electrically charged object can attract a metal only.
False. Electrically charged objects can attract both metals and nonmetals.
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