Energy
Define mechanical energy
sound is made from vibration
when force is applied to make an object move
What is the first step of the scientific method
name the two types of energy
potential energy
kinetic energy
mechanical energy can be both what?
kinetic and potential energy
How does sound travel
through a medium or matter
what is the formula for work
W=FORCE X DISTANCE
An educated guess is called an
Hypothesis
potential is said to be?
stored energy
give an example of kinetic mechanical energy
running down the street
car drive etc... fastest group response wins
which wave is a sound wave
longitudinal wave
What is the measuring unit for work?
Joule
A factor in an experiment that you are able to change is called an
independent variable
Kinetic energy is energy of?
motion or movement
give an example of potential mechanical energy
how high or low a sound is
calculate the following
Armando is pushing a 14lbs bookshelf for a distance of 3 feet how much work was done?
W= 42 Joules
The factor that is being measured is called
dependent variable
what is the formula for calculating kinetic energy
KE=MASSXSPEED2
how are mechanical potential energy and mechanical kinetic energy different
potential is stored or resting while mechanical is in immediate or in motion
give a modern use of sound energy
echolocation or sonorgraph
Valeria is pulling a desk that weighs 10lbs over a distance of 12 feet. how much work was done?
W=10X12 =120 JOULE
the factor that remains the same is called
constant