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Motion
Free Body Diagrams
Newton's Laws
Forces
Circular Motion and Gravity
100
This is a type of measurement with only a magnitude, or size. Direction does NOT matter for this type of measurement
What is a scalar?
100
This is what we draw to represent each force
What is an arrow?
100
This is what Newton's first law says about an object in motion, referencing the object's speed and direction
What is "stays in motion at the same speed and same direction unless acted on by an unbalanced force?"
100
This is the force that pulls you towards the earth
What is gravity?
100
This is the name for the force towards the center of circular motion
What is centripetal force?
200
This is the type of measurement that requires a size and direction
What is a vector?
200
When two forces have equal size and are in opposite directions, this is how their values are related
What is negatives of each other?
200
When you have the sum of the forces on an object and the object's mass, this is what you can solve for
What is the object's acceleration?
200
This is the type of friction on an object when it is moving
What is kinetic (or sliding) friction?
200
This is the direction of the force vector in circular motion
What is towards the center of the circle?
300
This is what you find if you take the slope of a position vs time graph
What is velocity?
300
This is the total force on the box shown in the diagram on the board
What is -10N in the y direction?
300
This is how the action and reaction force are related to each other
What is equal size and opposite direction?
300
This is the type of friction on an object when it is not moving
What is static friction?
300
This is how the universal law of gravitation says the force will change if you double the mass of one of your objects
What is double the force?
400
This is what you find if you take the slope of a velocity vs time graph
What is acceleration?
400
This is the net force for the diagram shown on the board
What is -15N in the x direction and 5 N in the y direction?
400
This is the total force on a 10kg object that changed its velocity from 10m/s to 20m/s in 10s
What is 10N?
400
This is the force exerted by a surface on an object. For example, the force of the table on a book resting on the table.
What is the normal force?
400
This is how the universal law of gravitation says the force will change if you triple the distance between the objects
What is decrease to one ninth of the original force?
500
This is the acceleration of a car that went from 20 m/s south to 5 m/s north in 5 seconds
What is 5 m/s^2 north? Alternatively, what is 5m/s^2 (when north is defined to be positive)?
500
This is how you would draw (USE THE WHITEBOARD!) all of the forces on a 2kg box being pushed along the ground at constant speed with a force of 1N.
See diagram drawn on board
500
This is the acceleration of a 5kg mass after it pushes on a wall with a force of +20N. Ignore friction, air resistance.
What is negative 4 m/s^2?
500
This is what happens when the air resistance force matches the force of gravity while you fall
What is terminal velocity, or terminal speed?
500
This is the net force during circular motion
What is F = m v^2 / r