Energy
What is the energy of moving parts?
Mechanical Energy
If it's open, it's ___________. If it's closed, it ___________.
broken; flows
Light travels in a _______________________
Straight Line
A force is a push or a pull measured in ____________
Newtons
Educated guess
hypothesis
What is the energy that we can see?
Light Energy
What is a series circuit?
ONE complete path. If one light goes out, they all go out.
When light bounces off of a surface producing an image.
reflection
A force that slows or stops the motion of an object when two surfaces rub together.
friction
What is the variable that the scientist changes?
independent variable
What type of energy is USED in a radio?
Electrical Energy
What is a parallel circuit?
TWO or MORE complete paths. If one light goes out, the others can stay on.
When light travels from one one medium to another and bends/changes direction
refraction
A force that is pulling objects to the middle of the Earth
gravity
What is the variable that you measure?
dependent variable
What types of energy are PRODUCED by an electric alarm clock?
Light and Sound energy
electrons
When light hits a surface and does not reflect, bend, or go through
absorb
If a student is rolling a ball on 4 different surfaces to test how far they roll on each, which force are they testing?
friction
What variables do not change?
controlled variable
What is the acronym used to help us remember the names of the 5 energy types?
MELTS
True or false: A closed circuit can produce light, heat, AND sound.
True
Why does a pencil in a cup of water look broken when you look at it from the side?
the light is refracted/slowed down
If a student is dropping 4 different objects from the same height to test how fast they fall, what force are they testing?
gravity
Why must you test a questions multiple times?
Answers vary