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# Science Test

What is friction? Two surfaces that exert on each other when they rub against each other
What strength of the force of friction depends on two factors? How hard the surfaces push together and types of surfaces involved.
What is static friction? Friction that acts on objects that are not moving
What is Sliding friction? When two solid surfaces slide over each other
What does newton's first law states? Objects at rest will remain at rest and a constant moving object will continue moving.
What is inertia? Inertia is the tendency of an object to resist a change in motion
What's the formula for finding the acceleration of an object? Net force/Mass
What's the formula for finding the momentum of an object? MassxVelocity
What are the four types of friction? Sliding friction, Fluid friction, Rolling friction, and static friction
What types for friction occur when you ride your bike through a puddle of water? Fluid friction and Rolling friction
What is projectile motion? An object that is thrown
Created by: Sharaluvly