Light energy
An object that lets no light pass through it is called?
Opaque
Sound energy travels in _____.
Waves
The north and south ends of the magnet are called
Poles
What simple machine would help push a ball to a higher level?
Inclined plane.
In a ________________________ circuit, if one bulb burns out, the others will stay lit.
Parallel
When light strikes a mirrors surface it_________
Reflects
How loud or quiet a sound is.
Volume
When two magnets attract they______________.
The ability for something to do work is called________.
Energy
In a _________________________ circuit, if one bulb burns out, the others will not work.
Absorbed
How high or low a sound is.
Pitch
When magnets push each other away they _______ one another
Repel
A door stop is an example of this kind of simple machine.
Wedge
An object that allows electricity to pass through it is called a_________
Conductor
If an object allows all of the light to pass through, we call it___________.
Transparent
When we speak our vocal cords _______ so that we can create sound.
Vibrates.
What type of objects to magnets attract?
Metals
A seesaw is an example of this simple machine.
Lever
An object that does not allow electricity to pass through it is called an ___________
Insulator
When light strikes a cup of water, the light waves slow down and appear to bend. What is this called?
Refracting.
What can sound not travel thorough?
Empty space or Vacuum.
What is the field of energy surrounding a magnet called?
Magnetic Field
What simple machine would you use to hold to objects together?
For a series circuit to work, the circuit must be what?
Closed