Show:
machines
magnetism
electricity
energy
potluck
100
what is a complex machine
a machine that does more than one job
100
Where is a magnet's force strongest?
at its' poles
100
What is reason wires are wrapped in rubber?
electricity doesn't flow easily through rubber
100
What is the energy stored in the core of an atom?
nuclear energy
100
What is point on a lever that does not move?
fulcrum
200
what is an example of a wedge?
wrench, axe sledgehammer
200
What is an item that would be attracted by a magnet?
steel paper clip
200
what is energy?
the ability to do work
200
What is the type of energy that is produced through photosynthesis?
chemical energy
200
What is an example of precipitation ?
snow, sleet, rain
300
What is a simple machine that tapers to a point and is used to change the position of heavy objects
wedge
300
What is an electric charge that is at rest? static electricity, an electric current, or an insulator?
static electricity
300
What is charged particles that are in motion?
electric current
300
name three types of energy
mechanical ,heat, chemical, physical, nuclear
300
anemometer
What is the instrument that measures wind speed
400
what is the reason a pulley makes lifting objects easier?
It is easier to pull down on a rope than lift a heavy object up
400
What is the cause of the movement of an electric current?
magnetism
400
What is the cause of static electricity?
friction
400
What is a frog leaping an example of?
kinetic energy
400
what is the process of weathering?
erosion
500
inclined plane
What is a ramp an example of?
500
What is a magnetic field?
the magnetic region around a magnet
500
what is an electrical circuit?
the path an electric current flows
500
What is an example of a fuel that provides energy from the remains of prehistoric plants and animals?
oil, gas, coal
500
What is the type of rock made up of lava and magma
igneous