Magnetism
Magnets push apart when the north and north or south and south poles are facing each other.
What is repel?
The flow of heat through the air in invisible waves between objects that are not in contact with each other. An example is the heat felt by someone standing a distance away from a hot stove.
What is radiation?
Is a circuit open or closed if you haven't turned on the switch?
What is open?
Magnets pull together when the north and south poles are facing each other.
What is attract?
The flow of heat caused by the motion of a liquid or a gas. An example is the heating of water in a teakettle.
What is convection?
How must D-cells be positioned for electricity to flow through a circuit?
What is + and - ends facing each other?
The force of attraction between two magnets gets _________________ when they move further and further away from each other.
What is weaker?
The flow of heat inside an object. It is also the flow of heat between objects in contact with each other. An example is the flow of heat from a hot frying pan to food placed on the pan to cook.
What is a conduction?
An electric circuit with a single path for electricity to flow.
What is series circuit?
Name at least one way an electromagnet be made stronger.
What is wind the wire more time around the core/rod, increase the voltage and cell size, and/or use thick cooper wire?
What is force?
When an object is heated, the molecules in the object move ____________________.
What is faster?
True or False: When you turn on a light, the switch is opening the circuit.
What is False? A switch closes the circuit to turn on the light.
Which of these materials is a conductor: rubber, glass, air, or silver?
What is silver?
Magnets attract to materials made of ______________.
What is iron?
When an object cools, the molecules inside it move ______________.
What is slower?
An electric circuit with two or pathways for electricity to flow.
What is a parallel circuit?