CER
The C of CER stands for?
Claim
Energy of Position
Potential
A joule is a unit of energy, ONE joule is enough energy to push with a force of how many Newtons for a distance of 1 meter.
1 Newton
Where is the greatest potential energy during our roller coaster lab?
Top of the coaster
A group of objects, effects, and variable that are related.
System
E in CER stands for?
Evidence
Energy of motion
Kinetic
What is the equation for Work?
Work = Force x Distance
Where was the kinetic energy the fastest or greatest?
At the end of the coaster.
Power
R in CER stands for what?
Reasoning
Energy is the quantity that measures the ability to _______
change
What is the equation for Power?
Power = Work / time
Describe the relationship between height and speed in relationship to the coaster lab.
Inverse: higher the marble the slower the marble, lower the marble the higher the speed.
A power of 1 joule per second.
Watt
When collecting evidence to support your claim, how many pieces of evidence is appropriate?
At least 3
The Law of Conservation of Energy States...
Energy cannot be created or destroyed, just converted from one form to another.
Mrs. Hubener pushes a table across the classroom with a force 150 Newtons. How much work does she do if the tables moves 10 meters in the same direction as the force?
1500 Joules
Name 4 items in our roller coaster "system".
Stand, marble, coaster, photo gates, calculators
horsepower
When writing up your reasoning, what are three things you should remember?
Restate the claim, keep it factual, scientific principle.
Friction transforms energy of motion to energy of______.
heat
A motor contains 50 joules of energy. How much distance can a 5-newton force push?
10 meters
As the marble rolls down the hill it loses potential energy, where does it go?
It is converted to kinetic energy.
Define work.
A form of energy that comes from force applied over distance.