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Physics Unit Test

QuestionAnswer
You can increase acceleration by increasing this. Force
What does Newton's 2nd Law state? The acceleration of an object depends on the object's mass and the net force acting on it.
What are the two formulas for acceleratiion? net force / mass and (final velocity - initial velocity) / change in time
What is the formula for force? mass * acceleration
What are the units for force? Newtons and kg * m/s^2
What does Newtown's 3rd law state? For every action, there is an equal and opposite reaction.
What is the formula for momentum? mass * velocity
What is the unit for momentum? kg * m/s
Movement results from this type of force: unbalanced
What is terminal velocity? When an object reaches its greatest velocity while falling. When the force of air resistance = the weight of the object.
Formula for speed: Distance / time
Formula for distance: speed * time
Formula for time: distance / speed
Three ways an object can accelerate: speed up, slow down, change direction
What is a balanced force? Opposing equal forces that cancel each other out.
What are the two ways to increase the acceleration of an object? Increase force or decrease mass.
Why would an object have more inertia? (Newtown's 1st Law) Because it has more mass, and the more mass an object has, the more inertia it has, and the harder it is to start and stop.
Created by: jmpres