Circuits
A series circuit has ________ pathway?
one
circuit
Which of the following reflects light to produce an image?
Prism
Mirror
Still pond
Water cup
Mirror, still pond
reflects
Wind turbines convert _____________ energy into __________ energy.
mechanical, electrical
mechanical
Force is a _______ or _______ on an object
push, pull
force
balanced or unbalanced?
dragging an object
unbalanced
unbalanced
A complete circuit requires what items to work?
wires, battery, output device
battery
Light travels in a _________ line. An object viewed through water looks different because the light rays are _________.
straight, refracted
refract
A toaster uses ________ energy to produce ________ energy to toast the bread.
electrical, thermal
thermal
In an investigation we change the ____________ variable and measure the ___________ variable, and keep things ______________ or the same.
independent, dependent, constant
variables
a __________ is a substance or object that light energy passes through
medium
medium
A flashlight coverts _________ energy to ________ energy to _________ energy.
chemical, electrical, light
electrical
Which objects transmits light:
mirror, black shirt, match, clear bag, magnifying glass
clear bag, magnifying glass
transmits
A flashlight converts __________ energy to produce ___________energy to produce ____________ energy to see in the dark.
chemical, electrical, light
chemical
A spring scale is used the measure the _________ of ___________ in the unit _____________.
force, gravity, Newtons
gravity
Water
Conductor
conductor
True/False
Every complete circuit requires a switch?
False
switch
Which objects absorb light?
mirror, black shirt, match, clear bag, magnifying glass
black shirt
absorbs
A roller coaster has mechanical energy: it has __________ energy at the top of the hill, then it uses __________ energy as it coasts down the hill.
potential, kinetic
kinetic
The amount of ________ a surface has will affect the ________ needed to move an object.
friction, force
friction
A Parallel circuit has _________ pathways
2 or more
parallel
When ________ the current flows, when ______ the circuit will not function.
closed, open
closed
____________ objects allow all light to pass.
____________objects allow some light to pass.
____________objects allow no light to pass.
transparent, translucent, opaque
opaque
An alarm clock uses _________ energy from the outlet to produce ________ energy so we can see the time and _________ energy so we can hear the alarm.
electrical, light, sound
sound
Dropping two different balls from the same height will measure the force of _________ on an object.
gravity
investigation
A solar panel uses __________ energy to produce _________ energy.
light, electrical
light