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gabe chapter 5

study stack flash cards

QuestionAnswer
What is motion ? change in position over time, related to a reference point
what is speed? distance/time expressed as km/h. mph or ft/s
what is constant speed? speed that does not change.
What is average speed ? total distance/total time
What is velocity? speed in a given direction. Distance/time
What is the rate of change in velocity? Acceleration
Circular motion is.... object traveling in a circular motion is always changing direction, therefore, velocity changes and acceleration changes.
What is force? push or pull. Expressed in newtons
Wghat is the combination of all the forces acting on an object? net force
forces applied in the same directions are called? balanced forces
what is a combined net force that is not equal to 0 ? unbalanced force
What is fricion? A force that opposes motion between two surfaces that are in contact. More mass=more weight=more friction
What are the 2 types of friction? kinetic and static friction
friction between 2 moving surfaces is? kinetic friction
force applied to an object that is not moving to cause an object to move? static friction
what is a lubricant for? to reduce friction by using a fluid between 2 surfaces, such as oil,wax,grease, water
Created by: gcolls
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