Embedded Files
How does energy transfer between crashing objects?
How does energy transfer between crashing objects?
Concept: Motion is changed when friction is applied. Energy is transferred when surfaces touch.
Guiding Question: How can motion be changed and what happens as a result?
When one object collides with another, its energy is transferred to the second object.
Phenomenon
Phenomenon
Where did all that heat come from?
Why is the penguin able to easily slide across the snow/ice?
What other energy forms were created?
Why is this person unable to stand on the ice without slipping?
NOTES AND Reading Resources
NOTES AND Reading Resources
Log into your Hart District Google account to view the notes and articles
Article: FrictionArticle: Thermal EnergyArticle: Types of FrictionLABS
LABS
Variables
Independent variable - The factor (thing) that is intentionally changed; it causes a change. There should never be more than one independent variable.
Dependent variable - The factor (thing) that changes as a result of the independent variable. It is the factor that is measured during the experiment.
Controlled variable - The factors (things) that are not changed in the experiment. They are kept intentionally the same.
Control group - A group of subjects that is not exposed to the independent variable.
Lab: Graphite Use the data and video below to help you complete the lab.
Graphite Lab.movLab: How does the type of surface affect friction?
Use the data and video below to help you complete the lab.
Friction Surface Lab Video 2019-2020.movLab: How Does Mass Affect Friction?
Use the data below. Find the mean. Use that data to complete the graph and to complete the C.E.R. Refer to the graph as an example.
determining how mass affects friction lab.MOVSimulations
Simulations
Friction Simulation of the Particles
Friction Simulation
Videos
Videos
Vocabulary
Vocabulary
- friction - the resistance from one surface or object rubbing against another.
- thermal energy - energy that comes from heat. This heat is generated by the movement of tiny particles within an object. The faster these particles move, the more heat is generated.
- Applied Force - a force applied to an object by a person or another object
- static friction - Friction that acts on objects that are not moving
- sliding friction - friction that occurs when one solid surface slides over another
- rolling friction - friction that occurs when an object rolls over a surface
- fluid friction - friction that occurs as an object moves through a liquid or gas
- work - When a force moves an object.
- kinetic energy - the energy an object has due to its motion
- energy - the ability to do work
Enrichment
Enrichment
Real world articles about friction applied in various situations
Review
Review
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